FM / bin

/usr/bin

Name	Size	Mode	Actions
aa-enabled	35344	0755	edit dl rm
aa-exec	35344	0755	edit dl rm
aa-features-abi	31248	0755	edit dl rm
ab	59832	0755	edit dl rm
aclocal	36020	0755	edit dl rm
aclocal-1.16	36020	0755	edit dl rm
add-apt-repository	14478	0755	edit dl rm
addpart	14720	0755	edit dl rm
addr2line	27344	0755	edit dl rm
aggregate_profile	1887	0755	edit dl rm
apport-bug	2568	0755	edit dl rm
apport-cli	13360	0755	edit dl rm
apport-collect	2568	0755	edit dl rm
apport-unpack	2070	0755	edit dl rm
apropos	48416	0755	edit dl rm
apt	18824	0755	edit dl rm
apt-add-repository	14478	0755	edit dl rm
apt-cache	84448	0755	edit dl rm
apt-cdrom	27104	0755	edit dl rm
apt-config	27024	0755	edit dl rm
apt-extracttemplates	23008	0755	edit dl rm
apt-ftparchive	236008	0755	edit dl rm
apt-get	51680	0755	edit dl rm
apt-key	28173	0755	edit dl rm
apt-mark	51680	0755	edit dl rm
apt-sortpkgs	39320	0755	edit dl rm
ar	55792	0755	edit dl rm
arch	31240	0755	edit dl rm
as	467352	0755	edit dl rm
autoconf	15204	0755	edit dl rm
autoheader	9034	0755	edit dl rm
autom4te	33475	0755	edit dl rm
automake	262055	0755	edit dl rm
automake-1.16	262055	0755	edit dl rm
automat-visualize3	405	0755	edit dl rm
autoreconf	26934	0755	edit dl rm
autoscan	17177	0755	edit dl rm
autoupdate	34017	0755	edit dl rm
awk	704984	0755	edit dl rm
b2	258120	0755	edit dl rm
b2sum	51728	0755	edit dl rm
base32	35336	0755	edit dl rm
base64	35336	0755	edit dl rm
basename	35336	0755	edit dl rm
basenc	47624	0755	edit dl rm
bash	1396520	0755	edit dl rm
bashbug	6818	0755	edit dl rm
bc	93000	0755	edit dl rm
bcp	568304	0755	edit dl rm
bjam	258120	0755	edit dl rm
boltctl	125936	0755	edit dl rm
bootctl	72184	0755	edit dl rm
btrfs	864392	0755	edit dl rm
btrfs-convert	494848	0755	edit dl rm
btrfs-find-root	449872	0755	edit dl rm
btrfs-image	478464	0755	edit dl rm
btrfs-map-logical	449792	0755	edit dl rm
btrfs-select-super	449792	0755	edit dl rm
btrfsck	864392	0755	edit dl rm
btrfstune	453896	0755	edit dl rm
bunzip2	39296	0755	edit dl rm
busctl	92664	0755	edit dl rm
busybox	2193272	0755	edit dl rm
byobu	8363	0755	edit dl rm
byobu-config	996	0755	edit dl rm
byobu-ctrl-a	4774	0755	edit dl rm
byobu-disable	1295	0755	edit dl rm
byobu-disable-prompt	1341	0755	edit dl rm
byobu-enable	1182	0755	edit dl rm
byobu-enable-prompt	1453	0755	edit dl rm
byobu-export	1351	0755	edit dl rm
byobu-janitor	6440	0755	edit dl rm
byobu-keybindings	1506	0755	edit dl rm
byobu-launch	3329	0755	edit dl rm
byobu-launcher	1910	0755	edit dl rm
byobu-launcher-install	2459	0755	edit dl rm
byobu-launcher-uninstall	1561	0755	edit dl rm
byobu-layout	3348	0755	edit dl rm
byobu-prompt	1156	0755	edit dl rm
byobu-quiet	1410	0755	edit dl rm
byobu-reconnect-sockets	3298	0755	edit dl rm
byobu-screen	8363	0755	edit dl rm
byobu-select-backend	1452	0755	edit dl rm
byobu-select-profile	5123	0755	edit dl rm
byobu-select-session	1012	0755	edit dl rm
byobu-shell	1600	0755	edit dl rm
byobu-silent	1306	0755	edit dl rm
byobu-status	6015	0755	edit dl rm
byobu-status-detail	1207	0755	edit dl rm
byobu-tmux	8363	0755	edit dl rm
byobu-ugraph	4667	0755	edit dl rm
byobu-ulevel	11996	0755	edit dl rm
bzcat	39296	0755	edit dl rm
bzcmp	2225	0755	edit dl rm
bzdiff	2225	0755	edit dl rm
bzegrep	3775	0755	edit dl rm
bzexe	4893	0755	edit dl rm
bzfgrep	3775	0755	edit dl rm
bzgrep	3775	0755	edit dl rm
bzip2	39296	0755	edit dl rm
bzip2recover	14640	0755	edit dl rm
bzless	1297	0755	edit dl rm
bzmore	1297	0755	edit dl rm
c++	932680	0755	edit dl rm
c++filt	22800	0755	edit dl rm
c89	428	0755	edit dl rm
c89-gcc	428	0755	edit dl rm
c99	454	0755	edit dl rm
c99-gcc	454	0755	edit dl rm
caf	14001	0755	edit dl rm
caf.openmpi	14001	0755	edit dl rm
cafrun	10322	0755	edit dl rm
cafrun.openmpi	10322	0755	edit dl rm
captoinfo	88488	0755	edit dl rm
cat	35288	0755	edit dl rm
catman	35592	0755	edit dl rm
cautious-launcher	758	0755	edit dl rm
cc	928584	0755	edit dl rm
ccmake	-	0	edit dl rm
certbot	961	0755	edit dl rm
cftp3	956	0755	edit dl rm
cgi-fcgi	18584	0755	edit dl rm
chacl	22832	0755	edit dl rm
chage	72184	2755	edit dl rm
chardet	965	0755	edit dl rm
chardetect	965	0755	edit dl rm
chattr	14656	0755	edit dl rm
chcon	59912	0755	edit dl rm
checkgid	14648	0755	edit dl rm
checkint	110	0755	edit dl rm
chfn	72712	4755	edit dl rm
chgrp	55816	0755	edit dl rm
chmod	55816	0755	edit dl rm
choom	22912	0755	edit dl rm
chown	59912	0755	edit dl rm
chrt	27008	0755	edit dl rm
chsh	44808	4755	edit dl rm
chvt	14568	0755	edit dl rm
ckbcomp	149817	0755	edit dl rm
ckeygen3	962	0755	edit dl rm
cksum	35240	0755	edit dl rm
clear	14656	0755	edit dl rm
clear_console	14568	0755	edit dl rm
cloud-id	966	0755	edit dl rm
cloud-init	970	0755	edit dl rm
cloud-init-per	2108	0755	edit dl rm
clusterdb	9427	0755	edit dl rm
cmake	-	0	edit dl rm
cmake-gui	-	0	edit dl rm
cmp	43408	0755	edit dl rm
codepage	14488	0755	edit dl rm
col	22920	0755	edit dl rm
col1	963	0755	edit dl rm
col2	963	0755	edit dl rm
col3	963	0755	edit dl rm
col4	963	0755	edit dl rm
col5	963	0755	edit dl rm
col6	963	0755	edit dl rm
col7	963	0755	edit dl rm
col8	963	0755	edit dl rm
col9	963	0755	edit dl rm
colcrt	14728	0755	edit dl rm
colrm	14728	0755	edit dl rm
column	35208	0755	edit dl rm
comm	35344	0755	edit dl rm
compose	18491	0755	edit dl rm
conch3	958	0755	edit dl rm
containerd	48051472	0755	edit dl rm
containerd-shim-runc-v2	8337016	0755	edit dl rm
corelist	15375	0755	edit dl rm
cp	141832	0755	edit dl rm
cpack	-	0	edit dl rm
cpan	8360	0755	edit dl rm
cpan5.34-x86_64-linux-gnu	8381	0755	edit dl rm
cpio	145024	0755	edit dl rm
cpp	928584	0755	edit dl rm
cpp-9	785144	0755	edit dl rm
cpp-11	928584	0755	edit dl rm
createdb	9427	0755	edit dl rm
createlang	9427	0755	edit dl rm
createuser	9427	0755	edit dl rm
crontab	39568	2755	edit dl rm
csplit	109064	0755	edit dl rm
ctail	960	0755	edit dl rm
ctest	-	0	edit dl rm
ctr	24962584	0755	edit dl rm
ctstat	23200	0755	edit dl rm
curl	260328	0755	edit dl rm
cut	39432	0755	edit dl rm
cvtsudoers	303512	0755	edit dl rm
c_rehash	6963	0755	edit dl rm
dash	125688	0755	edit dl rm
date	104968	0755	edit dl rm
dbilogstrip	1380	0755	edit dl rm
dbiprof	6206	0755	edit dl rm
dbiproxy	5394	0755	edit dl rm
dbus-cleanup-sockets	14632	0755	edit dl rm
dbus-daemon	232776	0755	edit dl rm
dbus-monitor	26920	0755	edit dl rm
dbus-run-session	14632	0755	edit dl rm
dbus-send	26920	0755	edit dl rm
dbus-update-activation-environment	14632	0755	edit dl rm
dbus-uuidgen	14632	0755	edit dl rm
dbxtool	26928	0755	edit dl rm
dd	68120	0755	edit dl rm
deallocvt	14568	0755	edit dl rm
deb-systemd-helper	21394	0755	edit dl rm
deb-systemd-invoke	6156	0755	edit dl rm
debconf	2859	0755	edit dl rm
debconf-apt-progress	11541	0755	edit dl rm
debconf-communicate	608	0755	edit dl rm
debconf-copydb	1719	0755	edit dl rm
debconf-escape	647	0755	edit dl rm
debconf-set-selections	2995	0755	edit dl rm
debconf-show	1827	0755	edit dl rm
debian-distro-info	23504	0755	edit dl rm
decodemail	35600	0755	edit dl rm
delpart	14720	0755	edit dl rm
delv	46408	0755	edit dl rm
derb	27520	0755	edit dl rm
df	85072	0755	edit dl rm
dfu-tool	112944	0755	edit dl rm
dh_autotools-dev_restoreconfig	1836	0755	edit dl rm
dh_autotools-dev_updateconfig	1850	0755	edit dl rm
dh_bash-completion	4414	0755	edit dl rm
dh_doxygen	4231	0755	edit dl rm
dh_perl_dbi	1198	0755	edit dl rm
dh_perl_openssl	1541	0755	edit dl rm
diff	133680	0755	edit dl rm
diff3	55824	0755	edit dl rm
dig	154448	0755	edit dl rm
dir	138216	0755	edit dl rm
dircolors	39440	0755	edit dl rm
dirmngr	443408	0755	edit dl rm
dirmngr-client	56240	0755	edit dl rm
dirname	31112	0755	edit dl rm
distro-info	23440	0755	edit dl rm
dmesg	72304	0755	edit dl rm
dnsdomainname	22760	0755	edit dl rm
do-release-upgrade	10675	0755	edit dl rm
docker	45410374	0755	edit dl rm
docker-proxy	2973099	0755	edit dl rm
dockerd	102651848	0755	edit dl rm
dockerd-rootless-setuptool.sh	16488	0755	edit dl rm
dockerd-rootless.sh	9335	0755	edit dl rm
domainname	22760	0755	edit dl rm
dotlock	15504	2755	edit dl rm
dotlock.mailutils	15504	2755	edit dl rm
doxygen	16937968	0755	edit dl rm
doxyindexer	575968	0755	edit dl rm
doxysearch.cgi	51600	0755	edit dl rm
dpkg	318144	0755	edit dl rm
dpkg-architecture	13832	0755	edit dl rm
dpkg-buildflags	7565	0755	edit dl rm
dpkg-buildpackage	32425	0755	edit dl rm
dpkg-checkbuilddeps	7624	0755	edit dl rm
dpkg-deb	137720	0755	edit dl rm
dpkg-distaddfile	2782	0755	edit dl rm
dpkg-divert	121336	0755	edit dl rm
dpkg-genbuildinfo	17106	0755	edit dl rm
dpkg-genchanges	17687	0755	edit dl rm
dpkg-gencontrol	14580	0755	edit dl rm
dpkg-gensymbols	10902	0755	edit dl rm
dpkg-maintscript-helper	21209	0755	edit dl rm
dpkg-mergechangelogs	8903	0755	edit dl rm
dpkg-name	6789	0755	edit dl rm
dpkg-parsechangelog	4947	0755	edit dl rm
dpkg-query	141848	0755	edit dl rm
dpkg-realpath	4189	0755	edit dl rm
dpkg-scanpackages	8705	0755	edit dl rm
dpkg-scansources	9174	0755	edit dl rm
dpkg-shlibdeps	31700	0755	edit dl rm
dpkg-source	23106	0755	edit dl rm
dpkg-split	100872	0755	edit dl rm
dpkg-statoverride	47368	0755	edit dl rm
dpkg-trigger	43424	0755	edit dl rm
dpkg-vendor	3262	0755	edit dl rm
dropdb	9427	0755	edit dl rm
droplang	9427	0755	edit dl rm
dropuser	9427	0755	edit dl rm
du	150024	0755	edit dl rm
dumpkeys	162520	0755	edit dl rm
dvipdf	1007	0755	edit dl rm
dwp	1904000	0755	edit dl rm
eatmydata	2806	0755	edit dl rm
ec2metadata	8583	0755	edit dl rm
echo	35128	0755	edit dl rm
ed	55800	0755	edit dl rm
edit	18491	0755	edit dl rm
editor	283160	0755	edit dl rm
efibootdump	22680	0755	edit dl rm
efibootmgr	44312	0755	edit dl rm
egrep	28	0755	edit dl rm
eject	43240	0755	edit dl rm
elfedit	35552	0755	edit dl rm
enc2xs	41819	0755	edit dl rm
encguess	3078	0755	edit dl rm
env	43976	0755	edit dl rm
envsubst	35200	0755	edit dl rm
eps2eps	639	0755	edit dl rm
eqn	192968	0755	edit dl rm
ex	3787952	0755	edit dl rm
expand	35360	0755	edit dl rm
expiry	23136	2755	edit dl rm
expr	104872	0755	edit dl rm
f77	928584	0755	edit dl rm
f95	928584	0755	edit dl rm
factor	72200	0755	edit dl rm
fail2ban-client	1419	0755	edit dl rm
fail2ban-python	5917224	0755	edit dl rm
fail2ban-regex	1280	0755	edit dl rm
fail2ban-server	1417	0755	edit dl rm
fail2ban-testcases	2285	0755	edit dl rm
faillog	23136	0755	edit dl rm
faked-sysv	31120	0755	edit dl rm
faked-tcp	31112	0755	edit dl rm
fakeroot	3995	0755	edit dl rm
fakeroot-sysv	3995	0755	edit dl rm
fakeroot-tcp	3990	0755	edit dl rm
fallocate	22912	0755	edit dl rm
false	26936	0755	edit dl rm
fcgistarter	14648	0755	edit dl rm
fgconsole	14568	0755	edit dl rm
fgrep	28	0755	edit dl rm
file	27200	0755	edit dl rm
finalrd	2112	0755	edit dl rm
fincore	22960	0755	edit dl rm
find	282088	0755	edit dl rm
findmnt	65136	0755	edit dl rm
flock	23024	0755	edit dl rm
fmt	39432	0755	edit dl rm
fold	35336	0755	edit dl rm
free	26864	0755	edit dl rm
frm	27944	0755	edit dl rm
frm.mailutils	27944	0755	edit dl rm
from	27464	0755	edit dl rm
from.mailutils	27464	0755	edit dl rm
ftp	183192	0755	edit dl rm
funzip	22832	0755	edit dl rm
fuser	40256	0755	edit dl rm
fusermount	35200	4755	edit dl rm
fusermount3	35200	4755	edit dl rm
fwupdagent	194864	0755	edit dl rm
fwupdate	84272	0755	edit dl rm
fwupdmgr	194864	0755	edit dl rm
fwupdtool	404400	0755	edit dl rm
g++	932680	0755	edit dl rm
g++-11	932680	0755	edit dl rm
gapplication	22920	0755	edit dl rm
gawk	704984	0755	edit dl rm
gcc	928584	0755	edit dl rm
gcc-9	785144	0755	edit dl rm
gcc-11	928584	0755	edit dl rm
gcc-ar	27176	0755	edit dl rm
gcc-ar-9	27176	0755	edit dl rm
gcc-ar-11	27176	0755	edit dl rm
gcc-nm	27176	0755	edit dl rm
gcc-nm-9	23072	0755	edit dl rm
gcc-nm-11	27176	0755	edit dl rm
gcc-ranlib	27176	0755	edit dl rm
gcc-ranlib-9	27176	0755	edit dl rm
gcc-ranlib-11	27176	0755	edit dl rm
gcov	409608	0755	edit dl rm
gcov-9	393136	0755	edit dl rm
gcov-11	409608	0755	edit dl rm
gcov-dump	257880	0755	edit dl rm
gcov-dump-9	241448	0755	edit dl rm
gcov-dump-11	257880	0755	edit dl rm
gcov-tool	282552	0755	edit dl rm
gcov-tool-9	274320	0755	edit dl rm
gcov-tool-11	282552	0755	edit dl rm
gdbus	51592	0755	edit dl rm
genbrk	15136	0755	edit dl rm
gencat	27000	0755	edit dl rm
gencfu	15080	0755	edit dl rm
gencnval	27248	0755	edit dl rm
gendict	27424	0755	edit dl rm
genrb	151464	0755	edit dl rm
geqn	192968	0755	edit dl rm
getconf	35112	0755	edit dl rm
getent	39576	0755	edit dl rm
getfacl	31552	0755	edit dl rm
getkeycodes	14568	0755	edit dl rm
getopt	22912	0755	edit dl rm
gettext	35200	0755	edit dl rm
gettext.sh	5188	0755	edit dl rm
gfortran	928584	0755	edit dl rm
gfortran-9	789240	0755	edit dl rm
gfortran-11	928584	0755	edit dl rm
ghostscript	14488	0755	edit dl rm
ginstall-info	105704	0755	edit dl rm
gio	92568	0755	edit dl rm
gio-querymodules	14648	0755	edit dl rm
git	3710360	0755	edit dl rm
git-receive-pack	3710360	0755	edit dl rm
git-shell	565840	0755	edit dl rm
git-upload-archive	3710360	0755	edit dl rm
git-upload-pack	3710360	0755	edit dl rm
glib-compile-schemas	51512	0755	edit dl rm
gmake	255696	0755	edit dl rm
gold	3189920	0755	edit dl rm
gpasswd	72072	4755	edit dl rm
gpg	1050624	0755	edit dl rm
gpg-agent	320472	0755	edit dl rm
gpg-connect-agent	84984	0755	edit dl rm
gpg-wks-server	117816	0755	edit dl rm
gpg-zip	3516	0755	edit dl rm
gpg2	1050624	0755	edit dl rm
gpgcompose	508400	0755	edit dl rm
gpgconf	129776	0755	edit dl rm
gpgparsemail	35200	0755	edit dl rm
gpgsm	428952	0755	edit dl rm
gpgsplit	27184	0755	edit dl rm
gpgtar	64912	0755	edit dl rm
gpgv	277544	0755	edit dl rm
gpic	204840	0755	edit dl rm
gprof	114472	0755	edit dl rm
grep	182728	0755	edit dl rm
gresource	22840	0755	edit dl rm
groff	96768	0755	edit dl rm
grog	2776	0755	edit dl rm
grops	166456	0755	edit dl rm
grotty	121368	0755	edit dl rm
groups	35336	0755	edit dl rm
growpart	26850	0755	edit dl rm
grub-editenv	386000	0755	edit dl rm
grub-file	836048	0755	edit dl rm
grub-fstest	960432	0755	edit dl rm
grub-glue-efi	253808	0755	edit dl rm
grub-kbdcomp	1681	0755	edit dl rm
grub-menulst2cfg	233600	0755	edit dl rm
grub-mkfont	278960	0755	edit dl rm
grub-mkimage	369712	0755	edit dl rm
grub-mklayout	258224	0755	edit dl rm
grub-mknetdir	427680	0755	edit dl rm
grub-mkpasswd-pbkdf2	262352	0755	edit dl rm
grub-mkrelpath	253520	0755	edit dl rm
grub-mkrescue	1022432	0755	edit dl rm
grub-mkstandalone	505808	0755	edit dl rm
grub-mount	779104	0755	edit dl rm
grub-ntldr-img	39160	0755	edit dl rm
grub-render-label	848720	0755	edit dl rm
grub-script-check	282320	0755	edit dl rm
grub-syslinux2cfg	800096	0755	edit dl rm
gs	14488	0755	edit dl rm
gsbj	350	0755	edit dl rm
gsdj	352	0755	edit dl rm
gsdj500	352	0755	edit dl rm
gsettings	31032	0755	edit dl rm
gslj	353	0755	edit dl rm
gslp	350	0755	edit dl rm
gsnd	277	0755	edit dl rm
gtbl	129512	0755	edit dl rm
gunzip	2346	0755	edit dl rm
gzexe	6480	0755	edit dl rm
gzip	93424	0755	edit dl rm
h2ph	29227	0755	edit dl rm
h2xs	60934	0755	edit dl rm
hardlink	35256	0755	edit dl rm
hd	51600	0755	edit dl rm
head	43528	0755	edit dl rm
helpztags	2514	0755	edit dl rm
hexdump	51600	0755	edit dl rm
host	121672	0755	edit dl rm
hostid	31240	0755	edit dl rm
hostname	22760	0755	edit dl rm
hostnamectl	31104	0755	edit dl rm
htcacheclean	39232	0755	edit dl rm
htdbm	26936	0755	edit dl rm
htdigest	14648	0755	edit dl rm
html2text	223560	0755	edit dl rm
htop	283840	0755	edit dl rm
htpasswd	26936	0755	edit dl rm
hwe-support-status	10830	0755	edit dl rm
i386	27288	0755	edit dl rm
ibd2sdi	301816	0755	edit dl rm
iconv	68000	0755	edit dl rm
icuexportdata	31728	0755	edit dl rm
icuinfo	14968	0755	edit dl rm
id	39432	0755	edit dl rm
ifnames	4183	0755	edit dl rm
info	308984	0755	edit dl rm
infobrowser	308984	0755	edit dl rm
infocmp	63872	0755	edit dl rm
infotocap	88488	0755	edit dl rm
innochecksum	204176	0755	edit dl rm
inspect	404912	0755	edit dl rm
install	145944	0755	edit dl rm
install-info	105704	0755	edit dl rm
instmodsh	4373	0755	edit dl rm
ionice	18816	0755	edit dl rm
ip	718896	0755	edit dl rm
ipcmk	22984	0755	edit dl rm
ipcrm	18816	0755	edit dl rm
ipcs	39296	0755	edit dl rm
iptables-xml	99272	0755	edit dl rm
ischroot	14536	0755	edit dl rm
iscsiadm	408024	0755	edit dl rm
join	47664	0755	edit dl rm
journalctl	80272	0755	edit dl rm
js	-	0	edit dl rm
json-patch-jsondiff	1004	0755	edit dl rm
jsondiff	1004	0755	edit dl rm
jsonpatch	3859	0755	edit dl rm
jsonpointer	1838	0755	edit dl rm
jsonschema	397	0755	edit dl rm
json_pp	4992	0755	edit dl rm
json_xs	7013	0755	edit dl rm
kbdinfo	18664	0755	edit dl rm
kbd_mode	14872	0755	edit dl rm
kbxutil	64336	0755	edit dl rm
keep-one-running	3592	0755	edit dl rm
kernel-install	4902	0755	edit dl rm
keyring	961	0755	edit dl rm
kill	30952	0755	edit dl rm
killall	32096	0755	edit dl rm
kmod	170352	0755	edit dl rm
kmodsign	18888	0755	edit dl rm
landscape-sysinfo	624	0755	edit dl rm
last	35200	0755	edit dl rm
lastb	35200	0755	edit dl rm
lastlog	28288	0755	edit dl rm
lcf	7784	0755	edit dl rm
ld	1736184	0755	edit dl rm
ld.bfd	1736184	0755	edit dl rm
ld.gold	3189920	0755	edit dl rm
ldd	5444	0755	edit dl rm
less	199048	0755	edit dl rm
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lessfile	9047	0755	edit dl rm
lesskey	24272	0755	edit dl rm
lesspipe	9047	0755	edit dl rm
letsencrypt	961	0755	edit dl rm
lexgrog	102144	0755	edit dl rm
libnetcfg	15778	0755	edit dl rm
libtool	375296	0755	edit dl rm
libtoolize	131339	0755	edit dl rm
link	31240	0755	edit dl rm
linux-boot-prober	1577	0755	edit dl rm
linux-check-removal	4090	0755	edit dl rm
linux-update-symlinks	6320	0755	edit dl rm
linux-version	2698	0755	edit dl rm
linux32	27288	0755	edit dl rm
linux64	27288	0755	edit dl rm
ln	59912	0755	edit dl rm
lnstat	23200	0755	edit dl rm
loadkeys	203528	0755	edit dl rm
loadunimap	31048	0755	edit dl rm
locale	58944	0755	edit dl rm
locale-check	14488	0755	edit dl rm
localectl	27000	0755	edit dl rm
localedef	334808	0755	edit dl rm
logger	35808	0755	edit dl rm
login	52976	0755	edit dl rm
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logname	31240	0755	edit dl rm
logresolve	14656	0755	edit dl rm
look	18824	0755	edit dl rm
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ls	138216	0755	edit dl rm
lsattr	14656	0755	edit dl rm
lsblk	125320	0755	edit dl rm
lsb_release	3638	0755	edit dl rm
lscpu	100736	0755	edit dl rm
lshw	922824	0755	edit dl rm
lsinitramfs	706	0755	edit dl rm
lsipc	51584	0755	edit dl rm
lslocks	31440	0755	edit dl rm
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lsmem	35200	0755	edit dl rm
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lsof	167544	0755	edit dl rm
lspci	94288	0755	edit dl rm
lspgpot	1081	0755	edit dl rm
lsusb	252432	0755	edit dl rm
lto-dump-11	24887264	0755	edit dl rm
lua	244184	0755	edit dl rm
lua5.2	244184	0755	edit dl rm
luac	109048	0755	edit dl rm
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lzcat	84504	0755	edit dl rm
lzcmp	7023	0755	edit dl rm
lzdiff	7023	0755	edit dl rm
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lzfgrep	6015	0755	edit dl rm
lzgrep	6015	0755	edit dl rm
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lzma	84504	0755	edit dl rm
lzmainfo	14568	0755	edit dl rm
lzmore	2162	0755	edit dl rm
m4	158072	0755	edit dl rm
mail	234888	0755	edit dl rm
mail.mailutils	234888	0755	edit dl rm
mailmail3	964	0755	edit dl rm
mailq	31184	0755	edit dl rm
mailx	234888	0755	edit dl rm
make	255696	0755	edit dl rm
make-first-existing-target	4905	0755	edit dl rm
makeconv	52112	0755	edit dl rm
man	120504	0755	edit dl rm
man-recode	36536	0755	edit dl rm
mandb	143296	0755	edit dl rm
manifest	1942	0755	edit dl rm
manpath	31520	0755	edit dl rm
mapscrn	31048	0755	edit dl rm
mawk	158504	0755	edit dl rm
mc	1103352	0755	edit dl rm
mcdiff	1103352	0755	edit dl rm
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mcookie	27080	0755	edit dl rm
mcview	1103352	0755	edit dl rm
md5sum	43432	0755	edit dl rm
md5sum.textutils	43432	0755	edit dl rm
mdig	51608	0755	edit dl rm
mesg	14720	0755	edit dl rm
messages	15024	0755	edit dl rm
messages.mailutils	15024	0755	edit dl rm
migrate-pubring-from-classic-gpg	3060	0755	edit dl rm
mimeview	19816	0755	edit dl rm
mkdir	68104	0755	edit dl rm
mkfifo	39432	0755	edit dl rm
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mkpasswd	27008	0755	edit dl rm
mksquashfs	260792	0755	edit dl rm
mktemp	39432	0755	edit dl rm
mk_modmap	16163	0755	edit dl rm
mmcli	280416	0755	edit dl rm
mokutil	60904	0755	edit dl rm
more	43400	0755	edit dl rm
mount	47488	4755	edit dl rm
mountpoint	18816	0755	edit dl rm
movemail	41224	0755	edit dl rm
movemail.mailutils	41224	0755	edit dl rm
mpic++	26944	0755	edit dl rm
mpic++.openmpi	26944	0755	edit dl rm
mpiCC	26944	0755	edit dl rm
mpicc	26944	0755	edit dl rm
mpiCC.openmpi	26944	0755	edit dl rm
mpicc.openmpi	26944	0755	edit dl rm
mpicxx	26944	0755	edit dl rm
mpicxx.openmpi	26944	0755	edit dl rm
mpiexec	14648	0755	edit dl rm
mpiexec.openmpi	14648	0755	edit dl rm
mpif77	26944	0755	edit dl rm
mpif77.openmpi	26944	0755	edit dl rm
mpif90	26944	0755	edit dl rm
mpif90.openmpi	26944	0755	edit dl rm
mpifort	26944	0755	edit dl rm
mpifort.openmpi	26944	0755	edit dl rm
mpijavac	4816	0755	edit dl rm
mpijavac.pl	4816	0755	edit dl rm
mpirun	14648	0755	edit dl rm
mpirun.openmpi	14648	0755	edit dl rm
mt	68336	0755	edit dl rm
mt-gnu	68336	0755	edit dl rm
mtr	73984	0755	edit dl rm
mtr-packet	39216	0755	edit dl rm
mv	137752	0755	edit dl rm
myisamchk	6871648	0755	edit dl rm
myisamlog	6693504	0755	edit dl rm
myisampack	6723840	0755	edit dl rm
myisam_ftdump	6661312	0755	edit dl rm
mysql	6969816	0755	edit dl rm
mysqladmin	6811744	0755	edit dl rm
mysqlanalyze	6808352	0755	edit dl rm
mysqlbinlog	7125376	0755	edit dl rm
mysqlcheck	6808352	0755	edit dl rm
mysqldump	6896224	0755	edit dl rm
mysqldumpslow	7719	0755	edit dl rm
mysqld_multi	27367	0755	edit dl rm
mysqld_safe	29137	0755	edit dl rm
mysqlimport	6799696	0755	edit dl rm
mysqloptimize	6808352	0755	edit dl rm
mysqlpump	7182592	0755	edit dl rm
mysqlrepair	6808352	0755	edit dl rm
mysqlreport	39016	0755	edit dl rm
mysqlshow	6802448	0755	edit dl rm
mysqlslap	6817296	0755	edit dl rm
mysql_config_editor	160800	0755	edit dl rm
mysql_migrate_keyring	6854560	0755	edit dl rm
mysql_secure_installation	6787696	0755	edit dl rm
mysql_ssl_rsa_setup	199576	0755	edit dl rm
mysql_tzinfo_to_sql	76712	0755	edit dl rm
mysql_upgrade	6867136	0755	edit dl rm
my_print_defaults	175352	0755	edit dl rm
namei	22912	0755	edit dl rm
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nawk	704984	0755	edit dl rm
nc	39560	0755	edit dl rm
nc.openbsd	39560	0755	edit dl rm
ncdu	84600	0755	edit dl rm
ncurses5-config	8402	0755	edit dl rm
ncurses6-config	8402	0755	edit dl rm
ncursesw5-config	8405	0755	edit dl rm
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neqn	913	0755	edit dl rm
netcat	39560	0755	edit dl rm
netload	22680	0755	edit dl rm
netstat	158304	0755	edit dl rm
networkctl	104832	0755	edit dl rm
networkd-dispatcher	20185	0755	edit dl rm
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newgrp	40496	4755	edit dl rm
NF	963	0755	edit dl rm
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nice	35336	0755	edit dl rm
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nm	44672	0755	edit dl rm
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nstat	31104	0755	edit dl rm
nsupdate	76344	0755	edit dl rm
ntfs-3g	162824	0755	edit dl rm
ntfs-3g.probe	14720	0755	edit dl rm
ntfscat	27008	0755	edit dl rm
ntfscluster	39304	0755	edit dl rm
ntfscmp	31104	0755	edit dl rm
ntfsdecrypt	43400	0755	edit dl rm
ntfsfallocate	27016	0755	edit dl rm
ntfsfix	35208	0755	edit dl rm
ntfsinfo	55688	0755	edit dl rm
ntfsls	28112	0755	edit dl rm
ntfsmove	31112	0755	edit dl rm
ntfsrecover	108928	0755	edit dl rm
ntfssecaudit	80752	0755	edit dl rm
ntfstruncate	26936	0755	edit dl rm
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ntfswipe	43936	0755	edit dl rm
numfmt	55848	0755	edit dl rm
objcopy	166440	0755	edit dl rm
objdump	373888	0755	edit dl rm
od	68104	0755	edit dl rm
oem-getlogs	8792	0755	edit dl rm
ompi-clean	14952	0755	edit dl rm
ompi-server	19120	0755	edit dl rm
ompi_info	31032	0755	edit dl rm
on_ac_power	3788	0755	edit dl rm
opalc++	26944	0755	edit dl rm
opalcc	26944	0755	edit dl rm
opal_wrapper	26944	0755	edit dl rm
open	18491	0755	edit dl rm
openssl	1001272	0755	edit dl rm
openvt	23128	0755	edit dl rm
orte-clean	14952	0755	edit dl rm
orte-info	35128	0755	edit dl rm
orte-server	19120	0755	edit dl rm
ortecc	26944	0755	edit dl rm
orted	14648	0755	edit dl rm
orterun	14648	0755	edit dl rm
os-prober	4551	0755	edit dl rm
oshc++	26944	0755	edit dl rm
oshCC	26944	0755	edit dl rm
oshcc	26944	0755	edit dl rm
oshcxx	26944	0755	edit dl rm
oshfort	26944	0755	edit dl rm
oshmem_info	31032	0755	edit dl rm
oshrun	14648	0755	edit dl rm
pager	199048	0755	edit dl rm
paperconf	14488	0755	edit dl rm
partx	59784	0755	edit dl rm
passwd	59976	4755	edit dl rm
paste	35240	0755	edit dl rm
pastebinit	16502	0755	edit dl rm
patch	190992	0755	edit dl rm
pathchk	35336	0755	edit dl rm
pbget	2569	0755	edit dl rm
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pdb3	63225	0755	edit dl rm
pdb3.10	63225	0755	edit dl rm
pdf2dsc	698	0755	edit dl rm
pdf2ps	909	0755	edit dl rm
peekfd	14640	0755	edit dl rm
perl	3806200	0755	edit dl rm
perl5.34-x86_64-linux-gnu	14648	0755	edit dl rm
perl5.34.0	3806200	0755	edit dl rm
perlbug	45183	0755	edit dl rm
perldoc	125	0755	edit dl rm
perlivp	10867	0755	edit dl rm
perlthanks	45183	0755	edit dl rm
perror	1534392	0755	edit dl rm
pf2afm	498	0755	edit dl rm
pfbtopfa	516	0755	edit dl rm
pgbench	9427	0755	edit dl rm
pgrep	30968	0755	edit dl rm
pg_basebackup	9427	0755	edit dl rm
pg_dump	9427	0755	edit dl rm
pg_dumpall	9427	0755	edit dl rm
pg_isready	9427	0755	edit dl rm
pg_receivewal	9427	0755	edit dl rm
pg_receivexlog	9427	0755	edit dl rm
pg_recvlogical	9427	0755	edit dl rm
pg_restore	9427	0755	edit dl rm
phar	15252	0755	edit dl rm
phar.phar	15252	0755	edit dl rm
phar.phar8.1	15244	0755	edit dl rm
phar.phar8.3	15239	0755	edit dl rm
phar.phar8.5	15252	0755	edit dl rm
phar8.1	15244	0755	edit dl rm
phar8.1.phar	15244	0755	edit dl rm
phar8.3	15239	0755	edit dl rm
phar8.3.phar	15239	0755	edit dl rm
phar8.5	15252	0755	edit dl rm
phar8.5.phar	15252	0755	edit dl rm
php	10300544	0755	edit dl rm
php8.1	5576200	0755	edit dl rm
php8.3	5800400	0755	edit dl rm
php8.5	10300544	0755	edit dl rm
phpdbg	12409608	0755	edit dl rm
phpdbg8.5	12409608	0755	edit dl rm
pic	204840	0755	edit dl rm
pico	283160	0755	edit dl rm
piconv	8360	0755	edit dl rm
pidof	31112	0755	edit dl rm
pidwait	30968	0755	edit dl rm
pigz	137584	0755	edit dl rm
pinentry	60056	0755	edit dl rm
pinentry-curses	60056	0755	edit dl rm
ping	76680	0755	edit dl rm
ping4	76680	0755	edit dl rm
ping6	76680	0755	edit dl rm
pinky	35240	0755	edit dl rm
pkaction	18736	0755	edit dl rm
pkcheck	22832	0755	edit dl rm
pkcon	59704	0755	edit dl rm
pkexec	30872	4755	edit dl rm
pkg-config	51488	0755	edit dl rm
pkgdata	44576	0755	edit dl rm
pkill	30968	0755	edit dl rm
pkmon	22840	0755	edit dl rm
pkttyagent	18736	0755	edit dl rm
pl2pm	4536	0755	edit dl rm
pldd	22904	0755	edit dl rm
plymouth	47408	0755	edit dl rm
pmap	35064	0755	edit dl rm
pod2html	4137	0755	edit dl rm
pod2man	15034	0755	edit dl rm
pod2text	10803	0755	edit dl rm
pod2usage	4107	0755	edit dl rm
podchecker	3658	0755	edit dl rm
pollinate	8744	0755	edit dl rm
pphs	404	0755	edit dl rm
pr	68176	0755	edit dl rm
preconv	55784	0755	edit dl rm
print	18491	0755	edit dl rm
printafm	395	0755	edit dl rm
printenv	31112	0755	edit dl rm
printf	51648	0755	edit dl rm
prlimit	27536	0755	edit dl rm
pro	1003	0755	edit dl rm
profile2mat	2709	0755	edit dl rm
prove	13658	0755	edit dl rm
prtstat	22912	0755	edit dl rm
ps	141776	0755	edit dl rm
ps2ascii	631	0755	edit dl rm
ps2epsi	1264	0755	edit dl rm
ps2pdf	272	0755	edit dl rm
ps2pdf12	215	0755	edit dl rm
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ps2pdf14	215	0755	edit dl rm
ps2pdfwr	1078	0755	edit dl rm
ps2ps	647	0755	edit dl rm
ps2ps2	669	0755	edit dl rm
ps2txt	631	0755	edit dl rm
psfaddtable	26856	0755	edit dl rm
psfgettable	26856	0755	edit dl rm
psfstriptable	26856	0755	edit dl rm
psfxtable	26856	0755	edit dl rm
pslog	14640	0755	edit dl rm
psql	9427	0755	edit dl rm
pstree	36168	0755	edit dl rm
pstree.x11	36168	0755	edit dl rm
ptar	3566	0755	edit dl rm
ptardiff	2645	0755	edit dl rm
ptargrep	4395	0755	edit dl rm
ptx	129592	0755	edit dl rm
purge-old-kernels	1149	0755	edit dl rm
pwd	35336	0755	edit dl rm
pwdx	14568	0755	edit dl rm
py3clean	7815	0755	edit dl rm
py3compile	13193	0755	edit dl rm
py3versions	11910	0755	edit dl rm
pybabel	953	0755	edit dl rm
pybabel-python3	953	0755	edit dl rm
pydoc3	79	0755	edit dl rm
pydoc3.10	79	0755	edit dl rm
pygettext3	24235	0755	edit dl rm
pygettext3.10	24235	0755	edit dl rm
pyhtmlizer3	968	0755	edit dl rm
pyserial-miniterm	975	0755	edit dl rm
pyserial-ports	969	0755	edit dl rm
python3	5917224	0755	edit dl rm
python3-config	3123	0755	edit dl rm
python3.10	5917224	0755	edit dl rm
python3.10-config	3123	0755	edit dl rm
pzstd	719328	0755	edit dl rm
qrencode	39168	0755	edit dl rm
quickbook	1109352	0755	edit dl rm
ranlib	55792	0755	edit dl rm
rbash	1396520	0755	edit dl rm
rcp	133720	0755	edit dl rm
rdma	100880	0755	edit dl rm
readelf	776640	0755	edit dl rm
readlink	39336	0755	edit dl rm
readmsg	36776	0755	edit dl rm
readmsg.mailutils	36776	0755	edit dl rm
realpath	39336	0755	edit dl rm
red	89	0755	edit dl rm
redis-benchmark	748200	0755	edit dl rm
redis-check-aof	1474504	0755	edit dl rm
redis-check-rdb	1474504	0755	edit dl rm
redis-cli	362632	0755	edit dl rm
reindexdb	9427	0755	edit dl rm
renice	14720	0755	edit dl rm
rescan-scsi-bus.sh	38964	0755	edit dl rm
reset	26944	0755	edit dl rm
resizecons	26952	0755	edit dl rm
resizepart	22912	0755	edit dl rm
resolvectl	133656	0755	edit dl rm
rev	14720	0755	edit dl rm
rgrep	30	0755	edit dl rm
rlogin	846888	0755	edit dl rm
rm	59912	0755	edit dl rm
rmail	18736	0755	edit dl rm
rmdir	43432	0755	edit dl rm
rnano	283160	0755	edit dl rm
rootlesskit	15366600	0755	edit dl rm
rotatelogs	27016	0755	edit dl rm
routef	208	0755	edit dl rm
routel	1656	0755	edit dl rm
rpcgen	96864	0755	edit dl rm
rrsync	12639	0755	edit dl rm
rsh	846888	0755	edit dl rm
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rsync-ssl	5136	0755	edit dl rm
rtstat	23200	0755	edit dl rm
run-mailcap	18491	0755	edit dl rm
run-one	3592	0755	edit dl rm
run-one-constantly	3592	0755	edit dl rm
run-one-until-failure	3592	0755	edit dl rm
run-one-until-success	3592	0755	edit dl rm
run-parts	27176	0755	edit dl rm
run-this-one	3592	0755	edit dl rm
runc	12003448	0755	edit dl rm
runcon	35336	0755	edit dl rm
rview	3787952	0755	edit dl rm
rvim	3787952	0755	edit dl rm
savelog	10487	0755	edit dl rm
sbattach	27176	0755	edit dl rm
sbkeysync	35576	0755	edit dl rm
sbsiglist	14952	0755	edit dl rm
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sbvarsign	23280	0755	edit dl rm
sbverify	35440	0755	edit dl rm
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scp	133720	0755	edit dl rm
screen	477432	0755	edit dl rm
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script	51584	0755	edit dl rm
scriptlive	43392	0755	edit dl rm
scriptreplay	35200	0755	edit dl rm
scsi_logging_level	8585	0755	edit dl rm
scsi_mandat	3602	0755	edit dl rm
scsi_readcap	1327	0755	edit dl rm
scsi_ready	1121	0755	edit dl rm
scsi_satl	3830	0755	edit dl rm
scsi_start	1285	0755	edit dl rm
scsi_stop	1474	0755	edit dl rm
scsi_temperature	936	0755	edit dl rm
sdiff	47504	0755	edit dl rm
sed	113224	0755	edit dl rm
see	18491	0755	edit dl rm
select-editor	2450	0755	edit dl rm
sensible-browser	1290	0755	edit dl rm
sensible-editor	1269	0755	edit dl rm
sensible-pager	565	0755	edit dl rm
seq	47624	0755	edit dl rm
setarch	27288	0755	edit dl rm
setfacl	43936	0755	edit dl rm
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setkeycodes	14568	0755	edit dl rm
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setlogcons	14568	0755	edit dl rm
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setpci	31112	0755	edit dl rm
setpriv	39304	0755	edit dl rm
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setterm	35200	0755	edit dl rm
setupcon	39233	0755	edit dl rm
sftp	150184	0755	edit dl rm
sg	40496	4755	edit dl rm
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sgm_dd	39232	0755	edit dl rm
sgp_dd	47424	0755	edit dl rm
sg_bg_ctl	14856	0755	edit dl rm
sg_compare_and_write	27560	0755	edit dl rm
sg_copy_results	23856	0755	edit dl rm
sg_dd	55632	0755	edit dl rm
sg_decode_sense	15112	0755	edit dl rm
sg_emc_trespass	14648	0755	edit dl rm
sg_format	40296	0755	edit dl rm
sg_get_config	36240	0755	edit dl rm
sg_get_elem_status	27432	0755	edit dl rm
sg_get_lba_status	23496	0755	edit dl rm
sg_ident	14952	0755	edit dl rm
sg_inq	122480	0755	edit dl rm
sg_logs	154552	0755	edit dl rm
sg_luns	23336	0755	edit dl rm
sg_map	18744	0755	edit dl rm
sg_map26	27344	0755	edit dl rm
sg_modes	47184	0755	edit dl rm
sg_opcodes	35848	0755	edit dl rm
sg_persist	36944	0755	edit dl rm
sg_prevent	14856	0755	edit dl rm
sg_raw	27560	0755	edit dl rm
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sg_read	26944	0755	edit dl rm
sg_readcap	23336	0755	edit dl rm
sg_read_attr	37528	0755	edit dl rm
sg_read_block_limits	14888	0755	edit dl rm
sg_read_buffer	28224	0755	edit dl rm
sg_read_long	15048	0755	edit dl rm
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sg_referrals	15016	0755	edit dl rm
sg_rep_pip	14920	0755	edit dl rm
sg_rep_zones	27440	0755	edit dl rm
sg_requests	23304	0755	edit dl rm
sg_reset	15016	0755	edit dl rm
sg_reset_wp	14952	0755	edit dl rm
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sg_rtpg	14952	0755	edit dl rm
sg_safte	23240	0755	edit dl rm
sg_sanitize	27656	0755	edit dl rm
sg_sat_identify	19176	0755	edit dl rm
sg_sat_phy_event	19464	0755	edit dl rm
sg_sat_read_gplog	19176	0755	edit dl rm
sg_sat_set_features	19144	0755	edit dl rm
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sg_seek	19336	0755	edit dl rm
sg_senddiag	27848	0755	edit dl rm
sg_ses	122848	0755	edit dl rm
sg_ses_microcode	28016	0755	edit dl rm
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sg_stpg	23272	0755	edit dl rm
sg_stream_ctl	19144	0755	edit dl rm
sg_sync	15016	0755	edit dl rm
sg_test_rwbuf	19048	0755	edit dl rm
sg_timestamp	19280	0755	edit dl rm
sg_turs	27336	0755	edit dl rm
sg_unmap	23304	0755	edit dl rm
sg_verify	19368	0755	edit dl rm
sg_vpd	117168	0755	edit dl rm
sg_write_buffer	27888	0755	edit dl rm
sg_write_long	15112	0755	edit dl rm
sg_write_same	27592	0755	edit dl rm
sg_write_verify	27432	0755	edit dl rm
sg_write_x	56936	0755	edit dl rm
sg_wr_mode	23272	0755	edit dl rm
sg_xcopy	43336	0755	edit dl rm
sg_zone	15216	0755	edit dl rm
sh	125688	0755	edit dl rm
sha1sum	43432	0755	edit dl rm
sha224sum	51624	0755	edit dl rm
sha256sum	51624	0755	edit dl rm
sha384sum	59816	0755	edit dl rm
sha512sum	59816	0755	edit dl rm
shasum	9979	0755	edit dl rm
shmemc++	26944	0755	edit dl rm
shmemCC	26944	0755	edit dl rm
shmemcc	26944	0755	edit dl rm
shmemcxx	26944	0755	edit dl rm
shmemfort	26944	0755	edit dl rm
shmemrun	14648	0755	edit dl rm
showconsolefont	18664	0755	edit dl rm
showkey	18664	0755	edit dl rm
shred	51720	0755	edit dl rm
shuf	47624	0755	edit dl rm
sieve	32816	0755	edit dl rm
size	31184	0755	edit dl rm
skill	30952	0755	edit dl rm
slabtop	22768	0755	edit dl rm
sleep	35336	0755	edit dl rm
slirp4netns	51992	0755	edit dl rm
slogin	846888	0755	edit dl rm
snap	21588696	0755	edit dl rm
snapctl	7562840	0755	edit dl rm
snapfuse	39144	0755	edit dl rm
snice	30952	0755	edit dl rm
soelim	31208	0755	edit dl rm
sort	101176	0755	edit dl rm
sos	612	0755	edit dl rm
sos-collector	1062	0755	edit dl rm
sosreport	1054	0755	edit dl rm
splain	19414	0755	edit dl rm
split	52192	0755	edit dl rm
splitfont	14488	0755	edit dl rm
sqfscat	135064	0755	edit dl rm
sqfstar	260792	0755	edit dl rm
sqlite3	1635064	0755	edit dl rm
ss	128072	0755	edit dl rm
ssh	846888	0755	edit dl rm
ssh-add	170416	0755	edit dl rm
ssh-agent	293304	2755	edit dl rm
ssh-argv0	1455	0755	edit dl rm
ssh-copy-id	12676	0755	edit dl rm
ssh-import-id	985	0755	edit dl rm
ssh-import-id-gh	785	0755	edit dl rm
ssh-import-id-lp	785	0755	edit dl rm
ssh-keygen	457152	0755	edit dl rm
ssh-keyscan	195008	0755	edit dl rm
stat	80400	0755	edit dl rm
static-sh	2193272	0755	edit dl rm
statnet	51416	0755	edit dl rm
stdbuf	43528	0755	edit dl rm
strace	1972848	0755	edit dl rm
strace-log-merge	1821	0755	edit dl rm
streamzip	7941	0755	edit dl rm
strings	31344	0755	edit dl rm
strip	166472	0755	edit dl rm
stty	76296	0755	edit dl rm
su	55680	4755	edit dl rm
sudo	232416	4755	edit dl rm
sudoedit	232416	4755	edit dl rm
sudoreplay	89744	0755	edit dl rm
sum	35240	0755	edit dl rm
sync	35240	0755	edit dl rm
systemctl	1119856	0755	edit dl rm
systemd	1849992	0755	edit dl rm
systemd-analyze	1809160	0755	edit dl rm
systemd-ask-password	18928	0755	edit dl rm
systemd-cat	18816	0755	edit dl rm
systemd-cgls	23016	0755	edit dl rm
systemd-cgtop	39312	0755	edit dl rm
systemd-cryptenroll	51744	0755	edit dl rm
systemd-delta	27000	0755	edit dl rm
systemd-detect-virt	18808	0755	edit dl rm
systemd-escape	22904	0755	edit dl rm
systemd-hwdb	121504	0755	edit dl rm
systemd-id128	27000	0755	edit dl rm
systemd-inhibit	22928	0755	edit dl rm
systemd-machine-id-setup	18928	0755	edit dl rm
systemd-mount	51808	0755	edit dl rm
systemd-notify	22912	0755	edit dl rm
systemd-path	18808	0755	edit dl rm
systemd-run	64072	0755	edit dl rm
systemd-socket-activate	27000	0755	edit dl rm
systemd-stdio-bridge	22912	0755	edit dl rm
systemd-sysext	47608	0755	edit dl rm
systemd-sysusers	64184	0755	edit dl rm
systemd-tmpfiles	100936	0755	edit dl rm
systemd-tty-ask-password-agent	35192	0755	edit dl rm
systemd-umount	51808	0755	edit dl rm
tabs	18744	0755	edit dl rm
tac	100776	0755	edit dl rm
tail	68112	0755	edit dl rm
tar	522048	0755	edit dl rm
taskset	22912	0755	edit dl rm
tbl	129512	0755	edit dl rm
tclsh	14488	0755	edit dl rm
tclsh8.6	14488	0755	edit dl rm
tcpdump	1331320	0755	edit dl rm
tcpspray	14488	0755	edit dl rm
tee	35336	0755	edit dl rm
telnet	110144	0755	edit dl rm
telnet.netkit	110144	0755	edit dl rm
tempfile	14360	0755	edit dl rm
test	43456	0755	edit dl rm
tic	88488	0755	edit dl rm
time	27160	0755	edit dl rm
timedatectl	47480	0755	edit dl rm
timeout	39880	0755	edit dl rm
tkconch3	962	0755	edit dl rm
tload	18680	0755	edit dl rm
tmux	971320	0755	edit dl rm
tnftp	183192	0755	edit dl rm
toe	22840	0755	edit dl rm
top	133184	0755	edit dl rm
touch	92680	0755	edit dl rm
tput	26968	0755	edit dl rm
tr	47624	0755	edit dl rm
tracepath	18584	0755	edit dl rm
trial3	958	0755	edit dl rm
troff	735856	0755	edit dl rm
true	26936	0755	edit dl rm
truncate	35336	0755	edit dl rm
tset	26944	0755	edit dl rm
tsort	47624	0755	edit dl rm
tty	31240	0755	edit dl rm
twist3	958	0755	edit dl rm
twistd3	960	0755	edit dl rm
tzselect	15379	0755	edit dl rm
ua	1003	0755	edit dl rm
ubuntu-advantage	1003	0755	edit dl rm
ubuntu-bug	2568	0755	edit dl rm
ubuntu-distro-info	23440	0755	edit dl rm
ubuntu-security-status	22783	0755	edit dl rm
ucf	41883	0755	edit dl rm
ucfq	19367	0755	edit dl rm
ucfr	10719	0755	edit dl rm
uclampset	27008	0755	edit dl rm
uconv	56144	0755	edit dl rm
udevadm	1131856	0755	edit dl rm
udisksctl	59776	0755	edit dl rm
ul	22920	0755	edit dl rm
umount	35200	4755	edit dl rm
uname	35336	0755	edit dl rm
unattended-upgrade	99547	0755	edit dl rm
unattended-upgrades	99547	0755	edit dl rm
uncompress	2346	0755	edit dl rm
unexpand	35360	0755	edit dl rm
unicode_start	2762	0755	edit dl rm
unicode_stop	530	0755	edit dl rm
uniq	43528	0755	edit dl rm
unlink	31240	0755	edit dl rm
unlzma	84504	0755	edit dl rm
unmkinitramfs	3774	0755	edit dl rm
unpigz	137584	0755	edit dl rm
unshare	31336	0755	edit dl rm
unsquashfs	135064	0755	edit dl rm
unxz	84504	0755	edit dl rm
unzip	174512	0755	edit dl rm
unzipsfx	80304	0755	edit dl rm
unzstd	875096	0755	edit dl rm
update-alternatives	59640	0755	edit dl rm
update-mime-database	59624	0755	edit dl rm
upower	22832	0755	edit dl rm
uptime	14568	0755	edit dl rm
usb-devices	4429	0755	edit dl rm
usbhid-dump	31112	0755	edit dl rm
usbreset	14640	0755	edit dl rm
users	35336	0755	edit dl rm
utmpdump	22912	0755	edit dl rm
uuidgen	18816	0755	edit dl rm
uuidparse	22912	0755	edit dl rm
vacuumdb	9427	0755	edit dl rm
vacuumlo	9427	0755	edit dl rm
vcs-run	6912	0755	edit dl rm
vdir	138216	0755	edit dl rm
VGAuthService	137768	0755	edit dl rm
vi	3787952	0755	edit dl rm
view	3787952	0755	edit dl rm
vigpg	2640	0755	edit dl rm
vim	3787952	0755	edit dl rm
vim.basic	3787952	0755	edit dl rm
vim.tiny	1520320	0755	edit dl rm
vimdiff	3787952	0755	edit dl rm
vimtutor	2154	0755	edit dl rm
vm-support	10066	0755	edit dl rm
vmhgfs-fuse	47848	0755	edit dl rm
vmstat	39160	0755	edit dl rm
vmtoolsd	76352	0755	edit dl rm
vmware-alias-import	43544	0755	edit dl rm
vmware-checkvm	14720	0755	edit dl rm
vmware-hgfsclient	14720	0755	edit dl rm
vmware-namespace-cmd	22840	0755	edit dl rm
vmware-rpctool	18744	0755	edit dl rm
vmware-toolbox-cmd	60000	0755	edit dl rm
vmware-vgauth-cmd	18744	0755	edit dl rm
vmware-vmblock-fuse	19232	0755	edit dl rm
vmware-xferlogs	33104	0755	edit dl rm
w	22760	0755	edit dl rm
wall	22912	0755	edit dl rm
watch	27240	0755	edit dl rm
watchgnupg	18744	0755	edit dl rm
wc	43440	0755	edit dl rm
wdctl	31128	0755	edit dl rm
wget	470032	0755	edit dl rm
whatis	48416	0755	edit dl rm
whereis	31576	0755	edit dl rm
which	946	0755	edit dl rm
which.debianutils	946	0755	edit dl rm
whiptail	30888	0755	edit dl rm
who	51736	0755	edit dl rm
whoami	31240	0755	edit dl rm
whois	159392	0755	edit dl rm
wifi-status	2107	0755	edit dl rm
write	22920	0755	edit dl rm
write.ul	22920	0755	edit dl rm
x86_64	27288	0755	edit dl rm
x86_64-linux-gnu-addr2line	27344	0755	edit dl rm
x86_64-linux-gnu-ar	55792	0755	edit dl rm
x86_64-linux-gnu-as	467352	0755	edit dl rm
x86_64-linux-gnu-c++filt	22800	0755	edit dl rm
x86_64-linux-gnu-cpp	928584	0755	edit dl rm
x86_64-linux-gnu-cpp-9	785144	0755	edit dl rm
x86_64-linux-gnu-cpp-11	928584	0755	edit dl rm
x86_64-linux-gnu-dwp	1904000	0755	edit dl rm
x86_64-linux-gnu-elfedit	35552	0755	edit dl rm
x86_64-linux-gnu-g++	932680	0755	edit dl rm
x86_64-linux-gnu-g++-11	932680	0755	edit dl rm
x86_64-linux-gnu-gcc	928584	0755	edit dl rm
x86_64-linux-gnu-gcc-9	785144	0755	edit dl rm
x86_64-linux-gnu-gcc-11	928584	0755	edit dl rm
x86_64-linux-gnu-gcc-ar	27176	0755	edit dl rm
x86_64-linux-gnu-gcc-ar-9	27176	0755	edit dl rm
x86_64-linux-gnu-gcc-ar-11	27176	0755	edit dl rm
x86_64-linux-gnu-gcc-nm	27176	0755	edit dl rm
x86_64-linux-gnu-gcc-nm-9	23072	0755	edit dl rm
x86_64-linux-gnu-gcc-nm-11	27176	0755	edit dl rm
x86_64-linux-gnu-gcc-ranlib	27176	0755	edit dl rm
x86_64-linux-gnu-gcc-ranlib-9	27176	0755	edit dl rm
x86_64-linux-gnu-gcc-ranlib-11	27176	0755	edit dl rm
x86_64-linux-gnu-gcov	409608	0755	edit dl rm
x86_64-linux-gnu-gcov-9	393136	0755	edit dl rm
x86_64-linux-gnu-gcov-11	409608	0755	edit dl rm
x86_64-linux-gnu-gcov-dump	257880	0755	edit dl rm
x86_64-linux-gnu-gcov-dump-9	241448	0755	edit dl rm
x86_64-linux-gnu-gcov-dump-11	257880	0755	edit dl rm
x86_64-linux-gnu-gcov-tool	282552	0755	edit dl rm
x86_64-linux-gnu-gcov-tool-9	274320	0755	edit dl rm
x86_64-linux-gnu-gcov-tool-11	282552	0755	edit dl rm
x86_64-linux-gnu-gfortran	928584	0755	edit dl rm
x86_64-linux-gnu-gfortran-9	789240	0755	edit dl rm
x86_64-linux-gnu-gfortran-11	928584	0755	edit dl rm
x86_64-linux-gnu-gold	3189920	0755	edit dl rm
x86_64-linux-gnu-gprof	114472	0755	edit dl rm
x86_64-linux-gnu-ld	1736184	0755	edit dl rm
x86_64-linux-gnu-ld.bfd	1736184	0755	edit dl rm
x86_64-linux-gnu-ld.gold	3189920	0755	edit dl rm
x86_64-linux-gnu-lto-dump-11	24887264	0755	edit dl rm
x86_64-linux-gnu-nm	44672	0755	edit dl rm
x86_64-linux-gnu-objcopy	166440	0755	edit dl rm
x86_64-linux-gnu-objdump	373888	0755	edit dl rm
x86_64-linux-gnu-pkg-config	2235	0755	edit dl rm
x86_64-linux-gnu-python3-config	3123	0755	edit dl rm
x86_64-linux-gnu-python3.10-config	3123	0755	edit dl rm
x86_64-linux-gnu-ranlib	55792	0755	edit dl rm
x86_64-linux-gnu-readelf	776640	0755	edit dl rm
x86_64-linux-gnu-size	31184	0755	edit dl rm
x86_64-linux-gnu-strings	31344	0755	edit dl rm
x86_64-linux-gnu-strip	166472	0755	edit dl rm
x86_64-pc-linux-gnu-pkg-config	51488	0755	edit dl rm
xargs	63912	0755	edit dl rm
xauth	56280	0755	edit dl rm
xdg-user-dir	234	0755	edit dl rm
xdg-user-dirs-update	26856	0755	edit dl rm
xml2-config	1436	0755	edit dl rm
xsubpp	5167	0755	edit dl rm
xxd	18720	0755	edit dl rm
xz	84504	0755	edit dl rm
xzcat	84504	0755	edit dl rm
xzcmp	7023	0755	edit dl rm
xzdiff	7023	0755	edit dl rm
xzegrep	6015	0755	edit dl rm
xzfgrep	6015	0755	edit dl rm
xzgrep	6015	0755	edit dl rm
xzless	1799	0755	edit dl rm
xzmore	2162	0755	edit dl rm
yes	31112	0755	edit dl rm
ypdomainname	22760	0755	edit dl rm
zcat	1984	0755	edit dl rm
zcmp	1678	0755	edit dl rm
zdiff	5885	0755	edit dl rm
zdump	26840	0755	edit dl rm
zegrep	29	0755	edit dl rm
zfgrep	29	0755	edit dl rm
zforce	2081	0755	edit dl rm
zgrep	8103	0755	edit dl rm
zipdetails	60065	0755	edit dl rm
zipgrep	2959	0755	edit dl rm
zipinfo	174512	0755	edit dl rm
zless	2206	0755	edit dl rm
zmore	1842	0755	edit dl rm
znew	4577	0755	edit dl rm
zstd	875096	0755	edit dl rm
zstdcat	875096	0755	edit dl rm
zstdgrep	3869	0755	edit dl rm
zstdless	30	0755	edit dl rm
zstdmt	875096	0755	edit dl rm
[	51648	0755	edit dl rm

Edit: /usr/bin/automake-1.16 (262055B)

#!/usr/bin/perl
# automake - create Makefile.in from Makefile.am            -*- perl -*-
# Generated from bin/automake.in; do not edit by hand.
# Copyright (C) 1994-2021 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
# Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
# Alexandre Duret-Lutz <adl@gnu.org>.

package Automake;

use 5.006;
use strict;
use warnings FATAL => 'all';

BEGIN
{
  unshift (@INC, '/usr/share/automake-1.16')
    unless $ENV{AUTOMAKE_UNINSTALLED};

# Override SHELL.  This is required on DJGPP so that system() uses
  # bash, not COMMAND.COM which doesn't quote arguments properly.
  # Other systems aren't expected to use $SHELL when Automake
  # runs, but it should be safe to drop the "if DJGPP" guard if
  # it turns up other systems need the same thing.  After all,
  # if SHELL is used, ./configure's SHELL is always better than
  # the user's SHELL (which may be something like tcsh).
  $ENV{'SHELL'} = '/bin/sh' if exists $ENV{'DJDIR'};
}

use Carp;
use File::Basename;
use File::Spec;

use Automake::Config;
BEGIN
{
  if ($perl_threads)
    {
      require threads;
      import threads;
      require Thread::Queue;
      import Thread::Queue;
    }
}
use Automake::General;
use Automake::XFile;
use Automake::Channels;
use Automake::ChannelDefs;
use Automake::Configure_ac;
use Automake::FileUtils;
use Automake::Location;
use Automake::Condition qw/TRUE FALSE/;
use Automake::DisjConditions;
use Automake::Options;
use Automake::Variable;
use Automake::VarDef;
use Automake::Rule;
use Automake::RuleDef;
use Automake::Wrap 'makefile_wrap';
use Automake::Language;

## ----------------------- ##
## Subroutine prototypes.  ##
## ----------------------- ##

sub append_exeext (&$);
sub check_gnits_standards ();
sub check_gnu_standards ();
sub check_trailing_slash ($\$);
sub check_typos ();
sub define_files_variable ($\@$$);
sub define_standard_variables ();
sub define_verbose_libtool ();
sub define_verbose_texinfo ();
sub do_check_merge_target ();
sub get_number_of_threads ();
sub handle_compile ();
sub handle_data ();
sub handle_dist ();
sub handle_emacs_lisp ();
sub handle_factored_dependencies ();
sub handle_footer ();
sub handle_gettext ();
sub handle_headers ();
sub handle_install ();
sub handle_java ();
sub handle_languages ();
sub handle_libraries ();
sub handle_libtool ();
sub handle_ltlibraries ();
sub handle_makefiles_serial ();
sub handle_man_pages ();
sub handle_minor_options ();
sub handle_options ();
sub handle_programs ();
sub handle_python ();
sub handle_scripts ();
sub handle_silent ();
sub handle_subdirs ();
sub handle_tags ();
sub handle_targets ();
sub handle_tests ();
sub handle_tests_dejagnu ();
sub handle_texinfo ();
sub handle_user_recursion ();
sub initialize_per_input ();
sub lang_lex_finish ();
sub lang_sub_obj ();
sub lang_vala_finish ();
sub lang_yacc_finish ();
sub locate_aux_dir ();
sub parse_arguments ();
sub scan_aclocal_m4 ();
sub scan_autoconf_files ();
sub silent_flag ();
sub transform ($\%);
sub transform_token ($\%$);
sub usage ();
sub version ();
sub yacc_lex_finish_helper ();

## ----------- ##
## Constants.  ##
## ----------- ##

# Some regular expressions.  One reason to put them here is that it
# makes indentation work better in Emacs.

# Writing singled-quoted-$-terminated regexes is a pain because
# perl-mode thinks of $' as the ${'} variable (instead of a $ followed
# by a closing quote.  Letting perl-mode think the quote is not closed
# leads to all sort of misindentations.  On the other hand, defining
# regexes as double-quoted strings is far less readable.  So usually
# we will write:
#
#  $REGEX = '^regex_value' . "\$";

my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
my $WHITE_PATTERN = '^\s*' . "\$";
my $COMMENT_PATTERN = '^#';
my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
# A rule has three parts: a list of targets, a list of dependencies,
# and optionally actions.
my $RULE_PATTERN =
  "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";

# Only recognize leading spaces, not leading tabs.  If we recognize
# leading tabs here then we need to make the reader smarter, because
# otherwise it will think rules like 'foo=bar; \' are errors.
my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
# This pattern recognizes a Gnits version id and sets $1 if the
# release is an alpha release.  We also allow a suffix which can be
# used to extend the version number with a "fork" identifier.
my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';

my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
my $ELSE_PATTERN =
  '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
my $ENDIF_PATTERN =
  '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
my $PATH_PATTERN = '(\w|[+/.-])+';
# This will pass through anything not of the prescribed form.
my $INCLUDE_PATTERN = ('^include\s+'
		       . '((\$$top_srcdir$/' . $PATH_PATTERN . ')'
		       . '|(\$$srcdir$/' . $PATH_PATTERN . ')'
		       . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");

# Values for AC_CANONICAL_*
use constant AC_CANONICAL_BUILD  => 1;
use constant AC_CANONICAL_HOST   => 2;
use constant AC_CANONICAL_TARGET => 3;

# Values indicating when something should be cleaned.
use constant MOSTLY_CLEAN     => 0;
use constant CLEAN            => 1;
use constant DIST_CLEAN       => 2;
use constant MAINTAINER_CLEAN => 3;

# Libtool files.
my @libtool_files = qw(ltmain.sh config.guess config.sub);
# ltconfig appears here for compatibility with old versions of libtool.
my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);

# Top-level files that can be foo.md instead of foo.  We assume that all
# but THANKS are required at strictness level gnu.
my @toplevelmd_ok = qw(AUTHORS ChangeLog INSTALL NEWS README THANKS);

# Commonly found files we look for and automatically include in DISTFILES.
my @common_files =
    (qw(ABOUT-GNU ABOUT-NLS BACKLOG COPYING
        COPYING.DOC COPYING.LIB COPYING.LESSER TODO
	ar-lib compile config.guess config.rpath
	config.sub depcomp install-sh libversion.in mdate-sh
	missing mkinstalldirs py-compile texinfo.tex ylwrap),
     @libtool_files, @libtool_sometimes);

# Commonly used files we auto-include, but only sometimes.  This list
# is used for the --help output only.
my @common_sometimes =
  qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
     configure.ac configure.in stamp-vti);

# Standard directories from the GNU Coding Standards, and additional
# pkg* directories from Automake.  Stored in a hash for fast member check.
my %standard_prefix =
    map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
			lib libexec lisp locale localstate man man1 man2
			man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
			pkgdata pkginclude pkglib pkglibexec ps sbin
			sharedstate sysconf));

# Copyright on generated Makefile.ins.
my $gen_copyright = "\
# Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.

# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
";

# These constants are returned by the lang_*_rewrite functions.
# LANG_SUBDIR means that the resulting object file should be in a
# subdir if the source file is.  In this case the file name cannot
# have '..' components.
use constant LANG_IGNORE  => 0;
use constant LANG_PROCESS => 1;
use constant LANG_SUBDIR  => 2;

# These are used when keeping track of whether an object can be built
# by two different paths.
use constant COMPILE_LIBTOOL  => 1;
use constant COMPILE_ORDINARY => 2;

# We can't always associate a location to a variable or a rule,
# when it's defined by Automake.  We use INTERNAL in this case.
use constant INTERNAL => new Automake::Location;

# Serialization keys for message queues.
use constant QUEUE_MESSAGE   => "msg";
use constant QUEUE_CONF_FILE => "conf file";
use constant QUEUE_LOCATION  => "location";
use constant QUEUE_STRING    => "string";

## ---------------------------------- ##
## Variables related to the options.  ##
## ---------------------------------- ##

# TRUE if we should always generate Makefile.in.
my $force_generation = 1;

# From the Perl manual.
my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');

# TRUE if missing standard files should be installed.
my $add_missing = 0;

# TRUE if we should copy missing files; otherwise symlink if possible.
my $copy_missing = 0;

# TRUE if we should always update files that we know about.
my $force_missing = 0;

## ---------------------------------------- ##
## Variables filled during files scanning.  ##
## ---------------------------------------- ##

# Name of the configure.ac file.
my $configure_ac;

# Files found by scanning configure.ac for LIBOBJS.
my %libsources = ();

# Names used in AC_CONFIG_HEADERS call.
my @config_headers = ();

# Names used in AC_CONFIG_LINKS call.
my @config_links = ();

# List of Makefile.am's to process, and their corresponding outputs.
my @input_files = ();
my %output_files = ();

# Complete list of Makefile.am's that exist.
my @configure_input_files = ();

# List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
# and their outputs.
my @other_input_files = ();
# Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADERS
# appears.  The keys are the files created by these macros.
my %ac_config_files_location = ();
# The condition under which AC_CONFIG_FOOS appears.
my %ac_config_files_condition = ();

# Directory to search for configure-required files.  This
# will be computed by locate_aux_dir() and can be set using
# AC_CONFIG_AUX_DIR in configure.ac.
# $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
my $config_aux_dir = '';
my $config_aux_dir_set_in_configure_ac = 0;
# $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
# in Makefiles.
my $am_config_aux_dir = '';

# Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
# in configure.ac.
my $config_libobj_dir = '';

# Whether AM_GNU_GETTEXT has been seen in configure.ac.
my $seen_gettext = 0;
# Whether AM_GNU_GETTEXT([external]) is used.
my $seen_gettext_external = 0;
# Where AM_GNU_GETTEXT appears.
my $ac_gettext_location;
# Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
my $seen_gettext_intl = 0;

# The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
my @extra_recursive_targets = ();

# Lists of tags supported by Libtool.
my %libtool_tags = ();
# 1 if Libtool uses LT_SUPPORTED_TAG.  If it does, then it also
# uses AC_REQUIRE_AUX_FILE.
my $libtool_new_api = 0;

# Most important AC_CANONICAL_* macro seen so far.
my $seen_canonical = 0;

# Where AM_MAINTAINER_MODE appears.
my $seen_maint_mode;

# Actual version we've seen.
my $package_version = '';

# Where version is defined.
my $package_version_location;

# TRUE if we've seen AM_PROG_AR
my $seen_ar = 0;

# Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
my %required_aux_file = ();

# Where AM_INIT_AUTOMAKE is called.
my $seen_init_automake = 0;

# TRUE if we've seen AM_AUTOMAKE_VERSION.
my $seen_automake_version = 0;

# Hash table of discovered configure substitutions.  Keys are names,
# values are 'FILE:LINE' strings which are used by error message
# generation.
my %configure_vars = ();

# Ignored configure substitutions (i.e., variables not to be output in
# Makefile.in)
my %ignored_configure_vars = ();

# Files included by $configure_ac.
my @configure_deps = ();

# Greatest timestamp of configure's dependencies.
my $configure_deps_greatest_timestamp = 0;

# Hash table of AM_CONDITIONAL variables seen in configure.
my %configure_cond = ();

# This maps extensions onto language names.
my %extension_map = ();

# List of the DIST_COMMON files we discovered while reading
# configure.ac.
my @configure_dist_common = ();

# This maps languages names onto objects.
my %languages = ();
# Maps each linker variable onto a language object.
my %link_languages = ();

# maps extensions to needed source flags.
my %sourceflags = ();

# List of targets we must always output.
# FIXME: Complete, and remove falsely required targets.
my %required_targets =
  (
   'all'          => 1,
   'dvi'	  => 1,
   'pdf'	  => 1,
   'ps'		  => 1,
   'info'	  => 1,
   'install-info' => 1,
   'install'      => 1,
   'install-data' => 1,
   'install-exec' => 1,
   'uninstall'    => 1,

# FIXME: Not required, temporary hacks.
   # Well, actually they are sort of required: the -recursive
   # targets will run them anyway...
   'html-am'         => 1,
   'dvi-am'          => 1,
   'pdf-am'          => 1,
   'ps-am'           => 1,
   'info-am'         => 1,
   'install-data-am' => 1,
   'install-exec-am' => 1,
   'install-html-am' => 1,
   'install-dvi-am'  => 1,
   'install-pdf-am'  => 1,
   'install-ps-am'   => 1,
   'install-info-am' => 1,
   'installcheck-am' => 1,
   'uninstall-am'    => 1,
   'tags-am'         => 1,
   'ctags-am'        => 1,
   'cscopelist-am'   => 1,
   'install-man'     => 1,
  );

# Queue to push require_conf_file requirements to.
my $required_conf_file_queue;

# The name of the Makefile currently being processed.
my $am_file = 'BUG';

################################################################

## ------------------------------------------ ##
## Variables reset by &initialize_per_input.  ##
## ------------------------------------------ ##

# Relative dir of the output makefile.
my $relative_dir;

# Greatest timestamp of the output's dependencies (excluding
# configure's dependencies).
my $output_deps_greatest_timestamp;

# These variables are used when generating each Makefile.in.
# They hold the Makefile.in until it is ready to be printed.
my $output_vars;
my $output_all;
my $output_header;
my $output_rules;
my $output_trailer;

# This is the conditional stack, updated on if/else/endif, and
# used to build Condition objects.
my @cond_stack;

# This holds the set of included files.
my @include_stack;

# List of dependencies for the obvious targets.
my @all;
my @check;
my @check_tests;

# Keys in this hash table are files to delete.  The associated
# value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
my %clean_files;

# Keys in this hash table are object files or other files in
# subdirectories which need to be removed.  This only holds files
# which are created by compilations.  The value in the hash indicates
# when the file should be removed.
my %compile_clean_files;

# Keys in this hash table are directories where we expect to build a
# libtool object.  We use this information to decide what directories
# to delete.
my %libtool_clean_directories;

# Value of $(SOURCES), used by tags.am.
my @sources;
# Sources which go in the distribution.
my @dist_sources;

# This hash maps object file names onto their corresponding source
# file names.  This is used to ensure that each object is created
# by a single source file.
my %object_map;

# This hash maps object file names onto an integer value representing
# whether this object has been built via ordinary compilation or
# libtool compilation (the COMPILE_* constants).
my %object_compilation_map;

# This keeps track of the directories for which we've already
# created dirstamp code.  Keys are directories, values are stamp files.
# Several keys can share the same stamp files if they are equivalent
# (as are './/foo' and 'foo').
my %directory_map;

# All .P files.
my %dep_files;

# This is a list of all targets to run during "make dist".
my @dist_targets;

# List of all programs, libraries and ltlibraries as returned
# by am_install_var
my @proglist;
my @liblist;
my @ltliblist;
# Blacklist of targets (as canonical base name) for which object file names
# may not be automatically shortened
my @dup_shortnames;

# Keep track of all programs declared in this Makefile, without
# $(EXEEXT).  @substitutions@ are not listed.
my %known_programs;
my %known_libraries;

# This keeps track of which extensions we've seen (that we care
# about).
my %extension_seen;

# This is random scratch space for the language finish functions.
# Don't randomly overwrite it; examine other uses of keys first.
my %language_scratch;

# We keep track of which objects need special (per-executable)
# handling on a per-language basis.
my %lang_specific_files;

# List of distributed files to be put in DIST_COMMON.
my @dist_common;

# This is set when 'handle_dist' has finished.  Once this happens,
# we should no longer push on dist_common.
my $handle_dist_run;

# Used to store a set of linkers needed to generate the sources currently
# under consideration.
my %linkers_used;

# True if we need 'LINK' defined.  This is a hack.
my $need_link;

# Does the generated Makefile have to build some compiled object
# (for binary programs, or plain or libtool libraries)?
my $must_handle_compiled_objects;

# Record each file processed by make_paragraphs.
my %transformed_files;

################################################################

## ---------------------------------------------- ##
## Variables not reset by &initialize_per_input.  ##
## ---------------------------------------------- ##

# Cache each file processed by make_paragraphs.
# (This is different from %transformed_files because
# %transformed_files is reset for each file while %am_file_cache
# it global to the run.)
my %am_file_cache;

################################################################

# var_SUFFIXES_trigger ($TYPE, $VALUE)
# ------------------------------------
# This is called by Automake::Variable::define() when SUFFIXES
# is defined ($TYPE eq '') or appended ($TYPE eq '+').
# The work here needs to be performed as a side-effect of the
# macro_define() call because SUFFIXES definitions impact
# on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
# the input am file.
sub var_SUFFIXES_trigger
{
    my ($type, $value) = @_;
    accept_extensions (split (' ', $value));
}
Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);

################################################################

# initialize_per_input ()
# -----------------------
# (Re)-Initialize per-Makefile.am variables.
sub initialize_per_input ()
{
    reset_local_duplicates ();

$relative_dir = undef;

$output_deps_greatest_timestamp = 0;

$output_vars = '';
    $output_all = '';
    $output_header = '';
    $output_rules = '';
    $output_trailer = '';

Automake::Options::reset;
    Automake::Variable::reset;
    Automake::Rule::reset;

@cond_stack = ();

@include_stack = ();

@all = ();
    @check = ();
    @check_tests = ();

%clean_files = ();
    %compile_clean_files = ();

# We always include '.'.  This isn't strictly correct.
    %libtool_clean_directories = ('.' => 1);

@sources = ();
    @dist_sources = ();

%object_map = ();
    %object_compilation_map = ();

%directory_map = ();

%dep_files = ();

@dist_targets = ();

@dist_common = ();
    $handle_dist_run = 0;

@proglist = ();
    @liblist = ();
    @ltliblist = ();
    @dup_shortnames = ();

%known_programs = ();
    %known_libraries = ();

%extension_seen = ();

%language_scratch = ();

%lang_specific_files = ();

$need_link = 0;

$must_handle_compiled_objects = 0;

%transformed_files = ();
}

################################################################

# Initialize our list of languages that are internally supported.

my @cpplike_flags =
  qw{
    $(DEFS)
    $(DEFAULT_INCLUDES)
    $(INCLUDES)
    $(AM_CPPFLAGS)
    $(CPPFLAGS)
  };

# C.
register_language ('name' => 'c',
		   'Name' => 'C',
		   'config_vars' => ['CC'],
		   'autodep' => '',
		   'flags' => ['CFLAGS', 'CPPFLAGS'],
		   'ccer' => 'CC',
		   'compiler' => 'COMPILE',
		   'compile' => "\$(CC) @cpplike_flags \$(AM_CFLAGS) \$(CFLAGS)",
		   'lder' => 'CCLD',
		   'ld' => '$(CC)',
		   'linker' => 'LINK',
		   'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'libtool_tag' => 'CC',
		   'extensions' => ['.c']);

# C++.
register_language ('name' => 'cxx',
		   'Name' => 'C++',
		   'config_vars' => ['CXX'],
		   'linker' => 'CXXLINK',
		   'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'autodep' => 'CXX',
		   'flags' => ['CXXFLAGS', 'CPPFLAGS'],
		   'compile' => "\$(CXX) @cpplike_flags \$(AM_CXXFLAGS) \$(CXXFLAGS)",
		   'ccer' => 'CXX',
		   'compiler' => 'CXXCOMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'libtool_tag' => 'CXX',
		   'lder' => 'CXXLD',
		   'ld' => '$(CXX)',
		   'pure' => 1,
		   'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);

# Objective C.
register_language ('name' => 'objc',
		   'Name' => 'Objective C',
		   'config_vars' => ['OBJC'],
		   'linker' => 'OBJCLINK',
		   'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'autodep' => 'OBJC',
		   'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
		   'compile' => "\$(OBJC) @cpplike_flags \$(AM_OBJCFLAGS) \$(OBJCFLAGS)",
		   'ccer' => 'OBJC',
		   'compiler' => 'OBJCCOMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'lder' => 'OBJCLD',
		   'ld' => '$(OBJC)',
		   'pure' => 1,
		   'extensions' => ['.m']);

# Objective C++.
register_language ('name' => 'objcxx',
		   'Name' => 'Objective C++',
		   'config_vars' => ['OBJCXX'],
		   'linker' => 'OBJCXXLINK',
		   'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'autodep' => 'OBJCXX',
		   'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
		   'compile' => "\$(OBJCXX) @cpplike_flags \$(AM_OBJCXXFLAGS) \$(OBJCXXFLAGS)",
		   'ccer' => 'OBJCXX',
		   'compiler' => 'OBJCXXCOMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'lder' => 'OBJCXXLD',
		   'ld' => '$(OBJCXX)',
		   'pure' => 1,
		   'extensions' => ['.mm']);

# Unified Parallel C.
register_language ('name' => 'upc',
		   'Name' => 'Unified Parallel C',
		   'config_vars' => ['UPC'],
		   'linker' => 'UPCLINK',
		   'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'autodep' => 'UPC',
		   'flags' => ['UPCFLAGS', 'CPPFLAGS'],
		   'compile' => "\$(UPC) @cpplike_flags \$(AM_UPCFLAGS) \$(UPCFLAGS)",
		   'ccer' => 'UPC',
		   'compiler' => 'UPCCOMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'lder' => 'UPCLD',
		   'ld' => '$(UPC)',
		   'pure' => 1,
		   'extensions' => ['.upc']);

# Headers.
register_language ('name' => 'header',
		   'Name' => 'Header',
		   'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
				    '.hpp', '.inc'],
		   # No output.
		   'output_extensions' => sub { return () },
		   # Nothing to do.
		   '_finish' => sub { });

# Vala
register_language ('name' => 'vala',
		   'Name' => 'Vala',
		   'config_vars' => ['VALAC'],
		   'flags' => [],
		   'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
		   'ccer' => 'VALAC',
		   'compiler' => 'VALACOMPILE',
		   'extensions' => ['.vala'],
		   'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
						return ($ext,) },
		   'rule_file' => 'vala',
		   '_finish' => \&lang_vala_finish,
		   '_target_hook' => \&lang_vala_target_hook,
		   'nodist_specific' => 1);

# Yacc (C & C++).
register_language ('name' => 'yacc',
		   'Name' => 'Yacc',
		   'config_vars' => ['YACC'],
		   'flags' => ['YFLAGS'],
		   'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
		   'ccer' => 'YACC',
		   'compiler' => 'YACCCOMPILE',
		   'extensions' => ['.y'],
		   'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
						return ($ext,) },
		   'rule_file' => 'yacc',
		   '_finish' => \&lang_yacc_finish,
		   '_target_hook' => \&lang_yacc_target_hook,
		   'nodist_specific' => 1);
register_language ('name' => 'yaccxx',
		   'Name' => 'Yacc (C++)',
		   'config_vars' => ['YACC'],
		   'rule_file' => 'yacc',
		   'flags' => ['YFLAGS'],
		   'ccer' => 'YACC',
		   'compiler' => 'YACCCOMPILE',
		   'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
		   'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
		   'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
						return ($ext,) },
		   '_finish' => \&lang_yacc_finish,
		   '_target_hook' => \&lang_yacc_target_hook,
		   'nodist_specific' => 1);

# Lex (C & C++).
register_language ('name' => 'lex',
		   'Name' => 'Lex',
		   'config_vars' => ['LEX'],
		   'rule_file' => 'lex',
		   'flags' => ['LFLAGS'],
		   'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
		   'ccer' => 'LEX',
		   'compiler' => 'LEXCOMPILE',
		   'extensions' => ['.l'],
		   'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
						return ($ext,) },
		   '_finish' => \&lang_lex_finish,
		   '_target_hook' => \&lang_lex_target_hook,
		   'nodist_specific' => 1);
register_language ('name' => 'lexxx',
		   'Name' => 'Lex (C++)',
		   'config_vars' => ['LEX'],
		   'rule_file' => 'lex',
		   'flags' => ['LFLAGS'],
		   'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
		   'ccer' => 'LEX',
		   'compiler' => 'LEXCOMPILE',
		   'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
		   'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
						return ($ext,) },
		   '_finish' => \&lang_lex_finish,
		   '_target_hook' => \&lang_lex_target_hook,
		   'nodist_specific' => 1);

# Assembler.
register_language ('name' => 'asm',
		   'Name' => 'Assembler',
		   'config_vars' => ['CCAS', 'CCASFLAGS'],

'flags' => ['CCASFLAGS'],
		   # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
		   # or anything else required.  They can also set CCAS.
		   # Or simply use Preprocessed Assembler.
		   'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
		   'ccer' => 'CCAS',
		   'compiler' => 'CCASCOMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'extensions' => ['.s']);

# Preprocessed Assembler.
register_language ('name' => 'cppasm',
		   'Name' => 'Preprocessed Assembler',
		   'config_vars' => ['CCAS', 'CCASFLAGS'],

'autodep' => 'CCAS',
		   'flags' => ['CCASFLAGS', 'CPPFLAGS'],
		   'compile' => "\$(CCAS) @cpplike_flags \$(AM_CCASFLAGS) \$(CCASFLAGS)",
		   'ccer' => 'CPPAS',
		   'compiler' => 'CPPASCOMPILE',
                   'libtool_tag' => 'CC',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'extensions' => ['.S', '.sx']);

# Fortran 77
register_language ('name' => 'f77',
		   'Name' => 'Fortran 77',
		   'config_vars' => ['F77'],
		   'linker' => 'F77LINK',
		   'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'flags' => ['FFLAGS'],
		   'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
		   'ccer' => 'F77',
		   'compiler' => 'F77COMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'libtool_tag' => 'F77',
		   'lder' => 'F77LD',
		   'ld' => '$(F77)',
		   'pure' => 1,
		   'extensions' => ['.f', '.for']);

# Fortran
register_language ('name' => 'fc',
		   'Name' => 'Fortran',
		   'config_vars' => ['FC'],
		   'linker' => 'FCLINK',
		   'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'flags' => ['FCFLAGS'],
		   'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
		   'ccer' => 'FC',
		   'compiler' => 'FCCOMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'libtool_tag' => 'FC',
		   'lder' => 'FCLD',
		   'ld' => '$(FC)',
		   'pure' => 1,
		   'extensions' => ['.f90', '.f95', '.f03', '.f08']);

# Preprocessed Fortran
register_language ('name' => 'ppfc',
		   'Name' => 'Preprocessed Fortran',
		   'config_vars' => ['FC'],
		   'linker' => 'FCLINK',
		   'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'lder' => 'FCLD',
		   'ld' => '$(FC)',
		   'flags' => ['FCFLAGS', 'CPPFLAGS'],
		   'ccer' => 'PPFC',
		   'compiler' => 'PPFCCOMPILE',
		   'compile' => "\$(FC) @cpplike_flags \$(AM_FCFLAGS) \$(FCFLAGS)",
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'libtool_tag' => 'FC',
		   'pure' => 1,
		   'extensions' => ['.F90','.F95', '.F03', '.F08']);

# Preprocessed Fortran 77
#
# The current support for preprocessing Fortran 77 just involves
# passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
# $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
# this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
# for 'make' Version 3.76 Beta" (specifically, from info file
# '(make)Catalogue of Rules').
#
# A better approach would be to write an Autoconf test
# (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
# Fortran 77 compilers know how to do preprocessing.  The Autoconf
# macro AC_PROG_FPP should test the Fortran 77 compiler first for
# preprocessing capabilities, and then fall back on cpp (if cpp were
# available).
register_language ('name' => 'ppf77',
		   'Name' => 'Preprocessed Fortran 77',
		   'config_vars' => ['F77'],
		   'linker' => 'F77LINK',
		   'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'lder' => 'F77LD',
		   'ld' => '$(F77)',
		   'flags' => ['FFLAGS', 'CPPFLAGS'],
		   'ccer' => 'PPF77',
		   'compiler' => 'PPF77COMPILE',
		   'compile' => "\$(F77) @cpplike_flags \$(AM_FFLAGS) \$(FFLAGS)",
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'libtool_tag' => 'F77',
		   'pure' => 1,
		   'extensions' => ['.F']);

# Ratfor.
register_language ('name' => 'ratfor',
		   'Name' => 'Ratfor',
		   'config_vars' => ['F77'],
		   'linker' => 'F77LINK',
		   'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'lder' => 'F77LD',
		   'ld' => '$(F77)',
		   'flags' => ['RFLAGS', 'FFLAGS'],
		   # FIXME also FFLAGS.
		   'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
		   'ccer' => 'F77',
		   'compiler' => 'RCOMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'libtool_tag' => 'F77',
		   'pure' => 1,
		   'extensions' => ['.r']);

# Java via gcj.
register_language ('name' => 'java',
		   'Name' => 'Java',
		   'config_vars' => ['GCJ'],
		   'linker' => 'GCJLINK',
		   'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
		   'autodep' => 'GCJ',
		   'flags' => ['GCJFLAGS'],
		   'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
		   'ccer' => 'GCJ',
		   'compiler' => 'GCJCOMPILE',
		   'compile_flag' => '-c',
		   'output_flag' => '-o',
		   'libtool_tag' => 'GCJ',
		   'lder' => 'GCJLD',
		   'ld' => '$(GCJ)',
		   'pure' => 1,
		   'extensions' => ['.java', '.class', '.zip', '.jar']);

################################################################

# Error reporting functions.

# err_am ($MESSAGE, [%OPTIONS])
# -----------------------------
# Uncategorized errors about the current Makefile.am.
sub err_am
{
  msg_am ('error', @_);
}

# err_ac ($MESSAGE, [%OPTIONS])
# -----------------------------
# Uncategorized errors about configure.ac.
sub err_ac
{
  msg_ac ('error', @_);
}

# msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
# ---------------------------------------
# Messages about about the current Makefile.am.
sub msg_am
{
  my ($channel, $msg, %opts) = @_;
  msg $channel, "${am_file}.am", $msg, %opts;
}

# msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
# ---------------------------------------
# Messages about about configure.ac.
sub msg_ac
{
  my ($channel, $msg, %opts) = @_;
  msg $channel, $configure_ac, $msg, %opts;
}

################################################################

# subst ($TEXT)
# -------------
# Return a configure-style substitution using the indicated text.
# We do this to avoid having the substitutions directly in automake.in;
# when we do that they are sometimes removed and this causes confusion
# and bugs.
sub subst
{
    my ($text) = @_;
    return '@' . $text . '@';
}

################################################################

# $BACKPATH
# backname ($RELDIR)
# -------------------
# If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
# For instance 'src/foo' => '../..'.
# Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
sub backname
{
    my ($file) = @_;
    my @res;
    foreach (split (/\//, $file))
    {
	next if $_ eq '.' || $_ eq '';
	if ($_ eq '..')
	{
	    pop @res
	      or prog_error ("trying to reverse path '$file' pointing outside tree");
	}
	else
	{
	    push (@res, '..');
	}
    }
    return join ('/', @res) || '.';
}

################################################################

# Silent rules handling functions.

# verbose_var (NAME)
# ------------------
# The public variable stem used to implement silent rules.
sub verbose_var
{
    my ($name) = @_;
    return 'AM_V_' . $name;
}

# verbose_private_var (NAME)
# --------------------------
# The naming policy for the private variables for silent rules.
sub verbose_private_var
{
    my ($name) = @_;
    return 'am__v_' . $name;
}

# define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
# ----------------------------------------------------------
# For  silent rules, setup VAR and dispatcher, to expand to
# VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
# empty) if not.
sub define_verbose_var
{
    my ($name, $silent_val, $verbose_val) = @_;
    $verbose_val = '' unless defined $verbose_val;
    my $var = verbose_var ($name);
    my $pvar = verbose_private_var ($name);
    my $silent_var = $pvar . '_0';
    my $verbose_var = $pvar . '_1';
    # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
    # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
    # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
    # See AM_SILENT_RULES in m4/silent.m4.
    define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
    define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
                     INTERNAL);
    Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
                                $silent_val, '', INTERNAL, VAR_ASIS)
      if (! vardef ($silent_var, TRUE));
    Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
                                $verbose_val, '', INTERNAL, VAR_ASIS)
      if (! vardef ($verbose_var, TRUE));
}

# verbose_flag (NAME)
# -------------------
# Contents of '%VERBOSE%' variable to expand before rule command.
sub verbose_flag
{
    my ($name) = @_;
    return '$(' . verbose_var ($name) . ')';
}

sub verbose_nodep_flag
{
    my ($name) = @_;
    return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
}

# silent_flag
# -----------
# Contents of %SILENT%: variable to expand to '@' when silent.
sub silent_flag ()
{
    return verbose_flag ('at');
}

# define_verbose_tagvar (NAME)
# ----------------------------
# Engage the needed silent rules machinery for tag NAME.
sub define_verbose_tagvar
{
    my ($name) = @_;
    define_verbose_var ($name, '@echo "  '. $name . ' ' x (8 - length ($name)) . '" $@;');
}

# Engage the needed silent rules machinery for assorted texinfo commands.
sub define_verbose_texinfo ()
{
  my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
  foreach my $tag (@tagvars)
    {
      define_verbose_tagvar($tag);
    }
  define_verbose_var('texinfo', '-q');
  define_verbose_var('texidevnull', '> /dev/null');
}

# Engage the needed silent rules machinery for 'libtool --silent'.
sub define_verbose_libtool ()
{
    define_verbose_var ('lt', '--silent');
    return verbose_flag ('lt');
}

sub handle_silent ()
{
    # Define "$(AM_V_P)", expanding to a shell conditional that can be
    # used in make recipes to determine whether we are being run in
    # silent mode or not.  The choice of the name derives from the LISP
    # convention of appending the letter 'P' to denote a predicate (see
    # also "the '-P' convention" in the Jargon File); we do so for lack
    # of a better convention.
    define_verbose_var ('P', 'false', ':');
    # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
    define_verbose_tagvar ('GEN');
    define_verbose_var ('at', '@');
}

################################################################

# Handle AUTOMAKE_OPTIONS variable.  Return 0 on error, 1 otherwise.
sub handle_options ()
{
  my $var = var ('AUTOMAKE_OPTIONS');
  if ($var)
    {
      if ($var->has_conditional_contents)
	{
	  msg_var ('unsupported', $var,
		   "'AUTOMAKE_OPTIONS' cannot have conditional contents");
	}
      my @options = map { { option => $_->[1], where => $_->[0] } }
			$var->value_as_list_recursive (cond_filter => TRUE,
						       location => 1);
      return 0 unless process_option_list (@options);
    }

if ($strictness == GNITS)
    {
      set_option ('readme-alpha', INTERNAL);
      set_option ('std-options', INTERNAL);
      set_option ('check-news', INTERNAL);
    }

return 1;
}

# shadow_unconditionally ($varname, $where)
# -----------------------------------------
# Return a $(variable) that contains all possible values
# $varname can take.
# If the VAR wasn't defined conditionally, return $(VAR).
# Otherwise we create an am__VAR_DIST variable which contains
# all possible values, and return $(am__VAR_DIST).
sub shadow_unconditionally
{
  my ($varname, $where) = @_;
  my $var = var $varname;
  if ($var->has_conditional_contents)
    {
      $varname = "am__${varname}_DIST";
      my @files = uniq ($var->value_as_list_recursive);
      define_pretty_variable ($varname, TRUE, $where, @files);
    }
  return "\$($varname)"
}

# check_user_variables (@LIST)
# ----------------------------
# Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
# otherwise.
sub check_user_variables
{
  my @dont_override = @_;
  foreach my $flag (@dont_override)
    {
      my $var = var $flag;
      if ($var)
	{
	  for my $cond ($var->conditions->conds)
	    {
	      if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
		{
		  msg_cond_var ('gnu', $cond, $flag,
				"'$flag' is a user variable, "
				. "you should not override it;\n"
				. "use 'AM_$flag' instead");
		}
	    }
	}
    }
}

# Call finish function for each language that was used.
sub handle_languages ()
{
    if (! option 'no-dependencies')
      {
        # Include auto-dep code.  Don't include it if DEP_FILES would
        # be empty.
        if (keys %extension_seen && keys %dep_files)
          {
            my @dep_files = sort keys %dep_files;
            # Set location of depcomp.
            define_variable ('depcomp',
                             "\$(SHELL) $am_config_aux_dir/depcomp",
                             INTERNAL);
            define_variable ('am__maybe_remake_depfiles', 'depfiles', INTERNAL);
            define_variable ('am__depfiles_remade', "@dep_files", INTERNAL);
            $output_rules .= "\n";
            my @dist_rms;
            foreach my $depfile (@dep_files)
              {
                push @dist_rms, "\t-rm -f $depfile";
                # Generate each 'include' directive individually.  Several
                # make implementations (IRIX 6, Solaris 10, FreeBSD 8) will
                # fail to properly include several files resulting from a
                # variable expansion. Just Generating many separate includes
                # seems thus safest.
                $output_rules .= subst ('AMDEP_TRUE') .
                                 subst ('am__include') .
                                 " " .
                                 subst('am__quote') .
                                 $depfile .
                                 subst('am__quote') .
                                 " " .
                                 "# am--include-marker\n";
              }

require_conf_file ("$am_file.am", FOREIGN, 'depcomp');

$output_rules .= file_contents (
                'depend', new Automake::Location,
                'DISTRMS' => join ("\n", @dist_rms));
          }
      }
    else
      {
        define_variable ('depcomp', '', INTERNAL);
        define_variable ('am__maybe_remake_depfiles', '', INTERNAL);
      }

my %done;

# Is the C linker needed?
    my $needs_c = 0;
    foreach my $ext (sort keys %extension_seen)
    {
	next unless $extension_map{$ext};

my $lang = $languages{$extension_map{$ext}};

my $rule_file = $lang->rule_file || 'depend2';

# Get information on $LANG.
	my $pfx = $lang->autodep;
	my $fpfx = ($pfx eq '') ? 'CC' : $pfx;

my ($AMDEP, $FASTDEP) =
	  (option 'no-dependencies' || $lang->autodep eq 'no')
	  ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");

my $verbose = verbose_flag ($lang->ccer || 'GEN');
	my $verbose_nodep = ($AMDEP eq 'FALSE')
	  ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
	my $silent = silent_flag ();

my %transform = ('EXT'     => $ext,
			 'PFX'     => $pfx,
			 'FPFX'    => $fpfx,
			 'AMDEP'   => $AMDEP,
			 'FASTDEP' => $FASTDEP,
			 '-c'      => $lang->compile_flag || '',
			 # These are not used, but they need to be defined
			 # so transform() do not complain.
			 SUBDIROBJ     => 0,
			 'DERIVED-EXT' => 'BUG',
			 DIST_SOURCE   => 1,
			 VERBOSE   => $verbose,
			 'VERBOSE-NODEP' => $verbose_nodep,
			 SILENT    => $silent,
			);

# Generate the appropriate rules for this extension.
	if (((! option 'no-dependencies') && $lang->autodep ne 'no')
	    || defined $lang->compile)
	{
	    # Compute a possible derived extension.
	    # This is not used by depend2.am.
	    my $der_ext = ($lang->output_extensions->($ext))[0];

# When we output an inference rule like '.c.o:' we
	    # have two cases to consider: either subdir-objects
	    # is used, or it is not.
	    #
	    # In the latter case the rule is used to build objects
	    # in the current directory, and dependencies always
	    # go into './$(DEPDIR)/'.  We can hard-code this value.
	    #
	    # In the former case the rule can be used to build
	    # objects in sub-directories too.  Dependencies should
	    # go into the appropriate sub-directories, e.g.,
	    # 'sub/$(DEPDIR)/'.  The value of this directory
	    # needs to be computed on-the-fly.
	    #
	    # DEPBASE holds the name of this directory, plus the
	    # basename part of the object file (extensions Po, TPo,
	    # Plo, TPlo will be added later as appropriate).  It is
	    # either hardcoded, or a shell variable ('$depbase') that
	    # will be computed by the rule.
	    my $depbase =
	      option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
	    $output_rules .=
	      file_contents ($rule_file,
			     new Automake::Location,
			     %transform,
			     GENERIC   => 1,

'DERIVED-EXT' => $der_ext,

DEPBASE   => $depbase,
			     BASE      => '$*',
			     SOURCE    => '$<',
			     SOURCEFLAG => $sourceflags{$ext} || '',
			     OBJ       => '$@',
			     OBJOBJ    => '$@',
			     LTOBJ     => '$@',

COMPILE   => '$(' . $lang->compiler . ')',
			     LTCOMPILE => '$(LT' . $lang->compiler . ')',
			     -o        => $lang->output_flag,
			     SUBDIROBJ => !! option 'subdir-objects');
	}

# Now include code for each specially handled object with this
	# language.
	my %seen_files = ();
	foreach my $file (@{$lang_specific_files{$lang->name}})
	{
	    my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;

# We might see a given object twice, for instance if it is
	    # used under different conditions.
	    next if defined $seen_files{$obj};
	    $seen_files{$obj} = 1;

prog_error ("found " . $lang->name .
			" in handle_languages, but compiler not defined")
	      unless defined $lang->compile;

my $obj_compile = $lang->compile;

# Rewrite each occurrence of 'AM_$flag' in the compile
	    # rule into '${derived}_$flag' if it exists.
	    for my $flag (@{$lang->flags})
	      {
		my $val = "${derived}_$flag";
		$obj_compile =~ s/$AM_$flag$/$$val$/
		  if set_seen ($val);
	      }

my $libtool_tag = '';
	    if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
	      {
		$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
	      }

my $ptltflags = "${derived}_LIBTOOLFLAGS";
	    $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;

my $ltverbose = define_verbose_libtool ();
	    my $obj_ltcompile =
	      "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
	      . "--mode=compile $obj_compile";

# We _need_ '-o' for per object rules.
	    my $output_flag = $lang->output_flag || '-o';

my $depbase = dirname ($obj);
	    $depbase = ''
		if $depbase eq '.';
	    $depbase .= '/'
		unless $depbase eq '';
	    $depbase .= '$(DEPDIR)/' . basename ($obj);

$output_rules .=
	      file_contents ($rule_file,
			     new Automake::Location,
			     %transform,
			     GENERIC   => 0,

DEPBASE   => $depbase,
			     BASE      => $obj,
			     SOURCE    => $source,
			     SOURCEFLAG => $sourceflags{$srcext} || '',
			     # Use $myext and not '.o' here, in case
			     # we are actually building a new source
			     # file -- e.g. via yacc.
			     OBJ       => "$obj$myext",
			     OBJOBJ    => "$obj.obj",
			     LTOBJ     => "$obj.lo",

VERBOSE   => $verbose,
			     'VERBOSE-NODEP'  => $verbose_nodep,
			     SILENT    => $silent,
			     COMPILE   => $obj_compile,
			     LTCOMPILE => $obj_ltcompile,
			     -o        => $output_flag,
			     %file_transform);
	}

# The rest of the loop is done once per language.
	next if defined $done{$lang};
	$done{$lang} = 1;

# Load the language dependent Makefile chunks.
	my %lang = map { uc ($_) => 0 } keys %languages;
	$lang{uc ($lang->name)} = 1;
	$output_rules .= file_contents ('lang-compile',
					new Automake::Location,
					%transform, %lang);

# If the source to a program consists entirely of code from a
	# 'pure' language, for instance C++ or Fortran 77, then we
	# don't need the C compiler code.  However if we run into
	# something unusual then we do generate the C code.  There are
	# probably corner cases here that do not work properly.
	# People linking Java code to Fortran code deserve pain.
	$needs_c ||= ! $lang->pure;

define_compiler_variable ($lang)
	  if ($lang->compile);

define_linker_variable ($lang)
	  if ($lang->link);

require_variables ("$am_file.am", $lang->Name . " source seen",
			   TRUE, @{$lang->config_vars});

# Call the finisher.
	$lang->finish;

# Flags listed in '->flags' are user variables (per GNU Standards),
	# they should not be overridden in the Makefile...
	my @dont_override = @{$lang->flags};
	# ... and so is LDFLAGS.
	push @dont_override, 'LDFLAGS' if $lang->link;

check_user_variables @dont_override;
    }

# If the project is entirely C++ or entirely Fortran 77 (i.e., 1
    # suffix rule was learned), don't bother with the C stuff.  But if
    # anything else creeps in, then use it.
    my @languages_seen = map { $languages{$extension_map{$_}}->name }
                             (keys %extension_seen);
    @languages_seen = uniq (@languages_seen);
    $needs_c = 1 if @languages_seen > 1;
    if ($need_link || $needs_c)
      {
	define_compiler_variable ($languages{'c'})
	  unless defined $done{$languages{'c'}};
	define_linker_variable ($languages{'c'});
      }
}

# append_exeext { PREDICATE } $MACRO
# ----------------------------------
# Append $(EXEEXT) to each filename in $F appearing in the Makefile
# variable $MACRO if &PREDICATE($F) is true.  @substitutions@ are
# ignored.
#
# This is typically used on all filenames of *_PROGRAMS, and filenames
# of TESTS that are programs.
sub append_exeext (&$)
{
  my ($pred, $macro) = @_;

transform_variable_recursively
    ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
     sub {
       my ($subvar, $val, $cond, $full_cond) = @_;
       # Append $(EXEEXT) unless the user did it already, or it's a
       # @substitution@.
       $val .= '$(EXEEXT)'
	 if $val !~ /(?:\$$EXEEXT$$|^[@]\w+[@]$)/ && &$pred ($val);
       return $val;
     });
}

# Check to make sure a source defined in LIBOBJS is not explicitly
# mentioned.  This is a separate function (as opposed to being inlined
# in handle_source_transform) because it isn't always appropriate to
# do this check.
sub check_libobjs_sources
{
  my ($one_file, $unxformed) = @_;

foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
		      'dist_EXTRA_', 'nodist_EXTRA_')
    {
      my @files;
      my $varname = $prefix . $one_file . '_SOURCES';
      my $var = var ($varname);
      if ($var)
	{
	  @files = $var->value_as_list_recursive;
	}
      elsif ($prefix eq '')
	{
	  @files = ($unxformed . '.c');
	}
      else
	{
	  next;
	}

foreach my $file (@files)
	{
	  err_var ($prefix . $one_file . '_SOURCES',
		   "automatically discovered file '$file' should not" .
		   " be explicitly mentioned")
	    if defined $libsources{$file};
	}
    }
}

# @OBJECTS
# handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
# -----------------------------------------------------------------------------
# Does much of the actual work for handle_source_transform.
# Arguments are:
#   $VAR is the name of the variable that the source filenames come from
#   $TOPPARENT is the name of the _SOURCES variable which is being processed
#   $DERIVED is the name of resulting executable or library
#   $OBJ is the object extension (e.g., '.lo')
#   $FILE the source file to transform
#   %TRANSFORM contains extras arguments to pass to file_contents
#     when producing explicit rules
# Result is a list of the names of objects
# %linkers_used will be updated with any linkers needed
sub handle_single_transform
{
    my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
    my @files = ($_file);
    my @result = ();

# Turn sources into objects.  We use a while loop like this
    # because we might add to @files in the loop.
    while (scalar @files > 0)
    {
	$_ = shift @files;

# Configure substitutions in _SOURCES variables are errors.
	if (/^\@.*\@$/)
	{
	  my $parent_msg = '';
	  $parent_msg = "\nand is referred to from '$topparent'"
	    if $topparent ne $var->name;
	  err_var ($var,
		   "'" . $var->name . "' includes configure substitution '$_'"
		   . $parent_msg . ";\nconfigure " .
		   "substitutions are not allowed in _SOURCES variables");
	  next;
	}

# If the source file is in a subdirectory then the '.o' is put
	# into the current directory, unless the subdir-objects option
	# is in effect.

# Split file name into base and extension.
	next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
	my $full = $_;
	my $directory = $1 || '';
	my $base = $2;
	my $extension = $3;

# We must generate a rule for the object if it requires its own flags.
	my $renamed = 0;
	my ($linker, $object);

# This records whether we've seen a derived source file (e.g., yacc
        # or lex output).
        my $derived_source;

# This holds the 'aggregate context' of the file we are
	# currently examining.  If the file is compiled with
	# per-object flags, then it will be the name of the object.
	# Otherwise it will be 'AM'.  This is used by the target hook
	# language function.
	my $aggregate = 'AM';

$extension = derive_suffix ($extension, $obj);
	my $lang;
	if ($extension_map{$extension} &&
	    ($lang = $languages{$extension_map{$extension}}))
	{
	    # Found the language, so see what it says.
	    saw_extension ($extension);

# Do we have per-executable flags for this executable?
	    my $have_per_exec_flags = 0;
	    my @peflags = @{$lang->flags};
	    push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
	    foreach my $flag (@peflags)
	      {
		if (set_seen ("${derived}_$flag"))
		  {
		    $have_per_exec_flags = 1;
		    last;
		  }
	      }

# Note: computed subr call.  The language rewrite function
	    # should return one of the LANG_* constants.  It could
	    # also return a list whose first value is such a constant
	    # and whose second value is a new source extension which
	    # should be applied.  This means this particular language
	    # generates another source file which we must then process
	    # further.
	    my $subr = \&{'lang_' . $lang->name . '_rewrite'};
	    defined &$subr or $subr = \&lang_sub_obj;
	    my ($r, $source_extension)
		= &$subr ($directory, $base, $extension,
			  $obj, $have_per_exec_flags, $var);
	    # Skip this entry if we were asked not to process it.
	    next if $r == LANG_IGNORE;

# Now extract linker and other info.
	    $linker = $lang->linker;

my $this_obj_ext;
            if (defined $source_extension)
              {
                $this_obj_ext = $source_extension;
                $derived_source = 1;
              }
            else
              {
                $this_obj_ext = $obj;
                $derived_source = 0;
                # Don't ever place built object files in $(srcdir),
                # even when sources are specified explicitly as (say)
                # '$(srcdir)/foo.c' or '$(top_srcdir)/foo.c'.
                # See automake bug#13928.
                my @d = split '/', $directory;
                if (@d > 0 && option 'subdir-objects')
                  {
                    my $d = $d[0];
                    if ($d eq '$(srcdir)' or $d eq '${srcdir}')
                      {
                        shift @d;
                      }
                    elsif ($d eq '$(top_srcdir)' or $d eq '${top_srcdir}')
                      {
                        $d[0] = '$(top_builddir)';
                      }
                    $directory = join '/', @d;
                  }
              }
            $object = $base . $this_obj_ext;

if ($have_per_exec_flags)
	    {
		# We have a per-executable flag in effect for this
		# object.  In this case we rewrite the object's
		# name to ensure it is unique.

# We choose the name 'DERIVED_OBJECT' to ensure (1) uniqueness,
                # and (2) continuity between invocations.  However, this will
                # result in a name that is too long for losing systems, in some
                # situations.  So we attempt to shorten automatically under
                # subdir-objects, and provide _SHORTNAME to override as a last
                # resort.  If subdir-object is in effect, it's usually
                # unnecessary to use the complete 'DERIVED_OBJECT' (that is
                # often the result from %canon_reldir%/%C% usage) since objects
                # are placed next to their source file.  Generally, this means
                # it is already unique within that directory (see below for an
                # exception).  Thus, we try to avoid unnecessarily long file
                # names by stripping the directory components of
                # 'DERIVED_OBJECT'.  This allows avoiding explicit _SHORTNAME
                # usage in many cases.  EXCEPTION: If two (or more) targets in
                # different directories but with the same base name (after
                # canonicalization), using target-specific FLAGS, link the same
                # object, then this logic clashes.  Thus, we don't strip if
                # this is detected.
                my $dname = $derived;
                if ($directory ne ''
                    && option 'subdir-objects'
                    && none { $dname =~ /$_[0]$/ } @dup_shortnames)
                  {
                    # At this point, we don't clear information about what
                    # parts of $derived are truly file name components.  We can
                    # determine that by comparing against the canonicalization
                    # of $directory.
                    my $dir = $directory . "/";
                    my $cdir = canonicalize ($dir);
                    my $dir_len = length ($dir);
                    # Make sure we only strip full file name components.  This
                    # is done by repeatedly trying to find cdir at the
                    # beginning.  Each iteration removes one file name
                    # component from the end of cdir.
                    while ($dir_len > 0 && index ($derived, $cdir) != 0)
                      {
                        # Eventually $dir_len becomes 0.
                        $dir_len = rindex ($dir, "/", $dir_len - 2) + 1;
                        $cdir = substr ($cdir, 0, $dir_len);
                      }
                    $dname = substr ($derived, $dir_len);
                  }
		my $var = var ($derived . '_SHORTNAME');
		if ($var)
		{
		    # FIXME: should use the same Condition as
		    # the _SOURCES variable.  But this is really
		    # silly overkill -- nobody should have
		    # conditional shortnames.
		    $dname = $var->variable_value;
		}
		$object = $dname . '-' . $object;

prog_error ($lang->name . " flags defined without compiler")
		  if ! defined $lang->compile;

$renamed = 1;
	    }

# If rewrite said it was ok, put the object into a subdir.
	    if ($directory ne '')
	    {
              if ($r == LANG_SUBDIR)
                {
                  $object = $directory . '/' . $object;
                }
              else
                {
                  # Since the next major version of automake (2.0) will
                  # make the behaviour so far only activated with the
                  # 'subdir-objects' option mandatory, it's better if we
                  # start warning users not using that option.
                  # As suggested by Peter Johansson, we strive to avoid
                  # the warning when it would be irrelevant, i.e., if
                  # all source files sit in "current" directory.
                  #
                  # There are problems with making this change; see
                  # https://bugs.gnu.org/20699 before making
                  # subdir-objects, let alone unconditional.
                  # (Making it non-overridable seems especially wrong.)
                  #
                  msg_var 'unsupported', $var,
                          "source file '$full' is in a subdirectory,"
                          . "\nbut option 'subdir-objects' is disabled";
                  msg 'unsupported', INTERNAL, <<'EOF', uniq_scope => US_GLOBAL;
possible forward-incompatibility.
At least one source file is in a subdirectory, but the 'subdir-objects'
automake option hasn't been enabled.  For now, the corresponding output
object file(s) will be placed in the top-level directory.  However, this
behavior may change in a future Automake major version, with object
files being placed in the same subdirectory as the corresponding sources.
You are advised to start using 'subdir-objects' option throughout your
project, to avoid future incompatibilities.
EOF
                }
	    }

# If the object file has been renamed (because per-target
	    # flags are used) we cannot compile the file with an
	    # inference rule: we need an explicit rule.
	    #
	    # If the source is in a subdirectory and the object is in
	    # the current directory, we also need an explicit rule.
	    #
	    # If both source and object files are in a subdirectory
	    # (this happens when the subdir-objects option is used),
	    # then the inference will work.
	    #
	    # The latter case deserves a historical note.  When the
	    # subdir-objects option was added on 1999-04-11 it was
	    # thought that inferences rules would work for
	    # subdirectory objects too.  Later, on 1999-11-22,
	    # automake was changed to output explicit rules even for
	    # subdir-objects.  Nobody remembers why, but this occurred
	    # soon after the merge of the user-dep-gen-branch so it
	    # might be related.  In late 2003 people complained about
	    # the size of the generated Makefile.ins (libgcj, with
	    # 2200+ subdir objects was reported to have a 9MB
	    # Makefile), so we now rely on inference rules again.
	    # Maybe we'll run across the same issue as in the past,
	    # but at least this time we can document it.  However since
	    # dependency tracking has evolved it is possible that
	    # our old problem no longer exists.
	    # Using inference rules for subdir-objects has been tested
	    # with GNU make, Solaris make, Ultrix make, BSD make,
	    # HP-UX make, and OSF1 make successfully.
	    if ($renamed
		|| ($directory ne '' && ! option 'subdir-objects')
		# We must also use specific rules for a nodist_ source
		# if its language requests it.
		|| ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
	    {
		my $obj_sans_ext = substr ($object, 0,
					   - length ($this_obj_ext));
		my $full_ansi;
		if ($directory ne '')
	          {
			$full_ansi = $directory . '/' . $base . $extension;
	          }
		else
	          {
			$full_ansi = $base . $extension;
	          }

my @specifics = ($full_ansi, $obj_sans_ext,
				 # Only use $this_obj_ext in the derived
				 # source case because in the other case we
				 # *don't* want $(OBJEXT) to appear here.
				 ($derived_source ? $this_obj_ext : '.o'),
				 $extension);

# If we renamed the object then we want to use the
		# per-executable flag name.  But if this is simply a
		# subdir build then we still want to use the AM_ flag
		# name.
		if ($renamed)
		  {
		    unshift @specifics, $derived;
		    $aggregate = $derived;
		  }
		else
		  {
		    unshift @specifics, 'AM';
		  }

# Each item on this list is a reference to a list consisting
		# of four values followed by additional transform flags for
		# file_contents.  The four values are the derived flag prefix
		# (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
		# source file, the base name of the output file, and
		# the extension for the object file.
		push (@{$lang_specific_files{$lang->name}},
		      [@specifics, %transform]);
	    }
	}
	elsif ($extension eq $obj)
	{
	    # This is probably the result of a direct suffix rule.
	    # In this case we just accept the rewrite.
	    $object = "$base$extension";
	    $object = "$directory/$object" if $directory ne '';
	    $linker = '';
	}
	else
	{
	    # No error message here.  Used to have one, but it was
	    # very unpopular.
	    # FIXME: we could potentially do more processing here,
	    # perhaps treating the new extension as though it were a
	    # new source extension (as above).  This would require
	    # more restructuring than is appropriate right now.
	    next;
	}

err_am "object '$object' created by '$full' and '$object_map{$object}'"
	  if (defined $object_map{$object}
	      && $object_map{$object} ne $full);

my $comp_val = (($object =~ /\.lo$/)
			? COMPILE_LIBTOOL : COMPILE_ORDINARY);
	(my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
	if (defined $object_compilation_map{$comp_obj}
	    && $object_compilation_map{$comp_obj} != 0
	    # Only see the error once.
	    && ($object_compilation_map{$comp_obj}
		!= (COMPILE_LIBTOOL | COMPILE_ORDINARY))
	    && $object_compilation_map{$comp_obj} != $comp_val)
	  {
	    err_am "object '$comp_obj' created both with libtool and without";
	  }
	$object_compilation_map{$comp_obj} |= $comp_val;

if (defined $lang)
	{
	    # Let the language do some special magic if required.
	    $lang->target_hook ($aggregate, $object, $full, %transform);
	}

if ($derived_source)
	  {
	    prog_error ($lang->name . " has automatic dependency tracking")
	      if $lang->autodep ne 'no';
	    # Make sure this new source file is handled next.  That will
	    # make it appear to be at the right place in the list.
	    unshift (@files, $object);
	    # Distribute derived sources unless the source they are
	    # derived from is not.
	    push_dist_common ($object)
	      unless ($topparent =~ /^(?:nobase_)?nodist_/);
	    next;
	  }

$linkers_used{$linker} = 1;

push (@result, $object);

if (! defined $object_map{$object})
	{
	    my @dep_list = ();
	    $object_map{$object} = $full;

# If resulting object is in subdir, we need to make
	    # sure the subdir exists at build time.
	    if ($object =~ /\//)
	    {
		# FIXME: check that $DIRECTORY is somewhere in the
		# project

# For Java, the way we're handling it right now, a
		# '..' component doesn't make sense.
		if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
		  {
		    err_am "'$full' should not contain a '..' component";
		  }

# Make sure *all* objects files in the subdirectory are
                # removed by "make mostlyclean".  Not only this is more
                # efficient than listing the object files to be removed
                # individually (which would cause an 'rm' invocation for
                # each of them -- very inefficient, see bug#10697), it
                # would also leave stale object files in the subdirectory
                # whenever a source file there is removed or renamed.
                $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
                if ($object =~ /\.lo$/)
                  {
                    # If we have a libtool object, then we also must remove
                    # any '.lo' objects in its same subdirectory.
                    $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
                    # Remember to cleanup .libs/ in this directory.
                    $libtool_clean_directories{$directory} = 1;
                  }

push (@dep_list, require_build_directory ($directory));

# If we're generating dependencies, we also want
		# to make sure that the appropriate subdir of the
		# .deps directory is created.
		push (@dep_list,
		      require_build_directory ($directory . '/$(DEPDIR)'))
		  unless option 'no-dependencies';
	    }

pretty_print_rule ($object . ':', "\t", @dep_list)
		if scalar @dep_list > 0;
	}

# Transform .o or $o file into .P file (for automatic
	# dependency code).
        # Properly flatten multiple adjacent slashes, as Solaris 10 make
        # might fail over them in an include statement.
        # Leading double slashes may be special, as per Posix, so deal
        # with them carefully.
        if ($lang && $lang->autodep ne 'no')
        {
            my $depfile = $object;
            $depfile =~ s/\.([^.]*)$/.P$1/;
            $depfile =~ s/\$$OBJEXT$$/o/;
            my $maybe_extra_leading_slash = '';
            $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
            $depfile =~ s,/+,/,g;
            my $basename = basename ($depfile);
            # This might make $dirname empty, but we account for that below.
            (my $dirname = dirname ($depfile)) =~ s/\/*$//;
            $dirname = $maybe_extra_leading_slash . $dirname;
            $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
        }
    }

return @result;
}

# $LINKER
# define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
#                              $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
# ---------------------------------------------------------------------------
# Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
#
# Arguments are:
#   $VAR is the name of the _SOURCES variable
#   $OBJVAR is the name of the _OBJECTS variable if known (otherwise
#     it will be generated and returned).
#   $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
#     work done to determine the linker will be).
#   $ONE_FILE is the canonical (transformed) name of object to build
#   $OBJ is the object extension (i.e. either '.o' or '.lo').
#   $TOPPARENT is the _SOURCES variable being processed.
#   $WHERE context into which this definition is done
#   %TRANSFORM extra arguments to pass to file_contents when producing
#     rules
#
# Result is a pair ($LINKER, $OBJVAR):
#    $LINKER is a boolean, true if a linker is needed to deal with the objects
sub define_objects_from_sources
{
  my ($var, $objvar, $nodefine, $one_file,
      $obj, $topparent, $where, %transform) = @_;

my $needlinker = "";

transform_variable_recursively
    ($var, $objvar, 'am__objects', $nodefine, $where,
     # The transform code to run on each filename.
     sub {
       my ($subvar, $val, $cond, $full_cond) = @_;
       my @trans = handle_single_transform ($subvar, $topparent,
					    $one_file, $obj, $val,
					    %transform);
       $needlinker = "true" if @trans;
       return @trans;
     });

return $needlinker;
}

# handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
# -----------------------------------------------------------------------------
# Handle SOURCE->OBJECT transform for one program or library.
# Arguments are:
#   canonical (transformed) name of target to build
#   actual target of object to build
#   object extension (i.e., either '.o' or '$o')
#   location of the source variable
#   extra arguments to pass to file_contents when producing rules
# Return the name of the linker variable that must be used.
# Empty return means just use 'LINK'.
sub handle_source_transform
{
    # one_file is canonical name.  unxformed is given name.  obj is
    # object extension.
    my ($one_file, $unxformed, $obj, $where, %transform) = @_;

my $linker = '';

# No point in continuing if _OBJECTS is defined.
    return if reject_var ($one_file . '_OBJECTS',
			  $one_file . '_OBJECTS should not be defined');

my %used_pfx = ();
    my $needlinker;
    %linkers_used = ();
    foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
			'dist_EXTRA_', 'nodist_EXTRA_')
    {
	my $varname = $prefix . $one_file . "_SOURCES";
	my $var = var $varname;
	next unless $var;

# We are going to define _OBJECTS variables using the prefix.
	# Then we glom them all together.  So we can't use the null
	# prefix here as we need it later.
	my $xpfx = ($prefix eq '') ? 'am_' : $prefix;

# Keep track of which prefixes we saw.
	$used_pfx{$xpfx} = 1
	  unless $prefix =~ /EXTRA_/;

push @sources, "\$($varname)";
	push @dist_sources, shadow_unconditionally ($varname, $where)
	  unless (option ('no-dist') || $prefix =~ /^nodist_/);

$needlinker |=
	    define_objects_from_sources ($varname,
					 $xpfx . $one_file . '_OBJECTS',
					 !!($prefix =~ /EXTRA_/),
					 $one_file, $obj, $varname, $where,
					 DIST_SOURCE => ($prefix !~ /^nodist_/),
					 %transform);
    }
    if ($needlinker)
    {
	$linker ||= resolve_linker (%linkers_used);
    }

my @keys = sort keys %used_pfx;
    if (scalar @keys == 0)
    {
	# The default source for libfoo.la is libfoo.c, but for
	# backward compatibility we first look at libfoo_la.c,
	# if no default source suffix is given.
	my $old_default_source = "$one_file.c";
	my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
	my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
	msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
	  if $default_source_ext =~ /[\t ]/;
	(my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
	# TODO: Remove this backward-compatibility hack in Automake 2.0.
	if ($old_default_source ne $default_source
	    && !$ext_var
	    && (rule $old_default_source
		|| rule '$(srcdir)/' . $old_default_source
		|| rule '${srcdir}/' . $old_default_source
		|| -f $old_default_source))
	  {
	    my $loc = $where->clone;
	    $loc->pop_context;
	    msg ('obsolete', $loc,
		 "the default source for '$unxformed' has been changed "
		 . "to '$default_source'.\n(Using '$old_default_source' for "
		 . "backward compatibility.)");
	    $default_source = $old_default_source;
	  }
	# If a rule exists to build this source with a $(srcdir)
	# prefix, use that prefix in our variables too.  This is for
	# the sake of BSD Make.
	if (rule '$(srcdir)/' . $default_source
	    || rule '${srcdir}/' . $default_source)
	  {
	    $default_source = '$(srcdir)/' . $default_source;
	  }

define_variable ($one_file . "_SOURCES", $default_source, $where);
	push (@sources, $default_source);
	push (@dist_sources, $default_source);

%linkers_used = ();
	my (@result) =
	  handle_single_transform ($one_file . '_SOURCES',
				   $one_file . '_SOURCES',
				   $one_file, $obj,
				   $default_source, %transform);
	$linker ||= resolve_linker (%linkers_used);
	define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
    }
    else
    {
	@keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
	define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
    }

# If we want to use 'LINK' we must make sure it is defined.
    if ($linker eq '')
    {
	$need_link = 1;
    }

return $linker;
}

# handle_lib_objects ($XNAME, $VAR)
# ---------------------------------
# Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
# Also, generate _DEPENDENCIES variable if appropriate.
# Arguments are:
#   transformed name of object being built, or empty string if no object
#   name of _LDADD/_LIBADD-type variable to examine
# Returns 1 if LIBOBJS seen, 0 otherwise.
sub handle_lib_objects
{
  my ($xname, $varname) = @_;

my $var = var ($varname);
  prog_error "'$varname' undefined"
    unless $var;
  prog_error "unexpected variable name '$varname'"
    unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
  my $prefix = $1 || 'AM_';

my $seen_libobjs = 0;
  my $flagvar = 0;

transform_variable_recursively
    ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
     ! $xname, INTERNAL,
     # Transformation function, run on each filename.
     sub {
       my ($subvar, $val, $cond, $full_cond) = @_;

if ($val =~ /^-/)
	 {
	   # Skip -lfoo and -Ldir silently; these are explicitly allowed.
	   if ($val !~ /^-[lL]/ &&
	       # Skip -dlopen and -dlpreopen; these are explicitly allowed
	       # for Libtool libraries or programs.  (Actually we are a bit
	       # lax here since this code also applies to non-libtool
	       # libraries or programs, for which -dlopen and -dlopreopen
	       # are pure nonsense.  Diagnosing this doesn't seem very
	       # important: the developer will quickly get complaints from
	       # the linker.)
	       $val !~ /^-dl(?:pre)?open$/ &&
	       # Only get this error once.
	       ! $flagvar)
	     {
	       $flagvar = 1;
	       # FIXME: should display a stack of nested variables
	       # as context when $var != $subvar.
	       err_var ($var, "linker flags such as '$val' belong in "
			. "'${prefix}LDFLAGS'");
	     }
	   return ();
	 }
       elsif ($val !~ /^\@.*\@$/)
	 {
	   # Assume we have a file of some sort, and output it into the
	   # dependency variable.  Autoconf substitutions are not output;
	   # rarely is a new dependency substituted into e.g. foo_LDADD
	   # -- but bad things (e.g. -lX11) are routinely substituted.
	   # Note that LIBOBJS and ALLOCA are exceptions to this rule,
	   # and handled specially below.
	   return $val;
	 }
       elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
	 {
	   handle_LIBOBJS ($subvar, $cond, $1);
	   $seen_libobjs = 1;
	   return $val;
	 }
       elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
	 {
	   handle_ALLOCA ($subvar, $cond, $1);
	   return $val;
	 }
       else
	 {
	   return ();
	 }
     });

return $seen_libobjs;
}

# handle_LIBOBJS_or_ALLOCA ($VAR, $BASE)
# --------------------------------------
# Definitions common to LIBOBJS and ALLOCA.
# VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
# BASE should be one base file name from AC_LIBSOURCE, or alloca.
sub handle_LIBOBJS_or_ALLOCA
{
  my ($var, $base) = @_;

my $dir = '';

# If LIBOBJS files must be built in another directory we have
  # to define LIBOBJDIR and ensure the files get cleaned.
  # Otherwise LIBOBJDIR can be left undefined, and the cleaning
  # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
  if ($config_libobj_dir
      && $relative_dir ne $config_libobj_dir)
    {
      if (option 'subdir-objects')
	{
	  # In the top-level Makefile we do not use $(top_builddir), because
	  # we are already there, and since the targets are built without
	  # a $(top_builddir), it helps BSD Make to match them with
	  # dependencies.
	  $dir = "$config_libobj_dir/"
	    if $config_libobj_dir ne '.';
	  $dir = backname ($relative_dir) . "/$dir"
	    if $relative_dir ne '.';
	  define_variable ('LIBOBJDIR', "$dir", INTERNAL);
	  if ($dir && !defined $clean_files{"$dir$base.\$(OBJEXT)"})
	    {
	      my $dirstamp = require_build_directory ($dir);
	      $output_rules .= "$dir$base.\$(OBJEXT): $dirstamp\n";
	      $output_rules .= "$dir$base.lo: $dirstamp\n"
		if ($var =~ /^LT/);
	    }
	  # libtool might create .$(OBJEXT) as a side-effect of using
	  # LTLIBOBJS or LTALLOCA.
	  $clean_files{"$dir$base.\$(OBJEXT)"} = MOSTLY_CLEAN;
	  $clean_files{"$dir$base.lo"} = MOSTLY_CLEAN
	    if ($var =~ /^LT/);
	}
      else
	{
	  error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
		 . " 'subdir-objects' is not set");
	}
    }

return $dir;
}

sub handle_LIBOBJS
{
  my ($var, $cond, $lt) = @_;
  my $myobjext = $lt ? 'lo' : 'o';
  $lt ||= '';

$var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
    if ! keys %libsources;

foreach my $iter (sort keys %libsources)
    {
      my $dir = '';
      if ($iter =~ /^(.*)(\.[cly])$/)
	{
	  saw_extension ($2);
	  saw_extension ('.c');
	  $dir = handle_LIBOBJS_or_ALLOCA ("${lt}LIBOBJS", $1);
	}

if ($iter =~ /\.h$/)
	{
	  require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
	}
      elsif ($iter ne 'alloca.c')
	{
	  my $rewrite = $iter;
	  $rewrite =~ s/\.c$/.P$myobjext/;
	  $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
	  $rewrite = "^" . quotemeta ($iter) . "\$";
	  # Only require the file if it is not a built source.
	  my $bs = var ('BUILT_SOURCES');
	  if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
	    {
	      require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
	    }
	}
    }
}

sub handle_ALLOCA
{
  my ($var, $cond, $lt) = @_;
  my $myobjext = $lt ? 'lo' : 'o';
  $lt ||= '';
  my $dir = handle_LIBOBJS_or_ALLOCA ("${lt}ALLOCA", "alloca");

$dir eq '' and $dir = './';
  $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
  $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
  require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
  saw_extension ('.c');
}

# Canonicalize the input parameter.
sub canonicalize
{
    my ($string) = @_;
    $string =~ tr/A-Za-z0-9_\@/_/c;
    return $string;
}

# Canonicalize a name, and check to make sure the non-canonical name
# is never used.  Returns canonical name.  Arguments are name and a
# list of suffixes to check for.
sub check_canonical_spelling
{
  my ($name, @suffixes) = @_;

my $xname = canonicalize ($name);
  if ($xname ne $name)
    {
      foreach my $xt (@suffixes)
	{
	  reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
	}
    }

return $xname;
}

# Set up the compile suite.
sub handle_compile ()
{
   return if ! $must_handle_compiled_objects;

# Boilerplate.
    my $default_includes = '';
    if (! option 'nostdinc')
      {
	my @incs = ('-I.', subst ('am__isrc'));

my $var = var 'CONFIG_HEADER';
	if ($var)
	  {
	    foreach my $hdr (split (' ', $var->variable_value))
	      {
		push @incs, '-I' . dirname ($hdr);
	      }
	  }
	# We want '-I. -I$(srcdir)', but the latter -I is redundant
	# and unaesthetic in non-VPATH builds.  We use `-I.@am__isrc@`
	# instead.  It will be replaced by '-I.' or '-I. -I$(srcdir)'.
	# Items in CONFIG_HEADER are never in $(srcdir) so it is safe
	# to just put @am__isrc@ right after '-I.', without a space.
	($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
      }

my (@mostly_rms, @dist_rms);
    foreach my $item (sort keys %compile_clean_files)
    {
	if ($compile_clean_files{$item} == MOSTLY_CLEAN)
	{
	    push (@mostly_rms, "\t-rm -f $item");
	}
	elsif ($compile_clean_files{$item} == DIST_CLEAN)
	{
	    push (@dist_rms, "\t-rm -f $item");
	}
	else
	{
	  prog_error 'invalid entry in %compile_clean_files';
	}
    }

my ($coms, $vars, $rules) =
      file_contents_internal (1, "$libdir/am/compile.am",
			      new Automake::Location,
			      'DEFAULT_INCLUDES' => $default_includes,
			      'MOSTLYRMS' => join ("\n", @mostly_rms),
			      'DISTRMS' => join ("\n", @dist_rms));
    $output_vars .= $vars;
    $output_rules .= "$coms$rules";
}

# Handle libtool rules.
sub handle_libtool ()
{
  return unless var ('LIBTOOL');

# Libtool requires some files, but only at top level.
  # (Starting with Libtool 2.0 we do not have to bother.  These
  # requirements are done with AC_REQUIRE_AUX_FILE.)
  require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
    if $relative_dir eq '.' && ! $libtool_new_api;

my @libtool_rms;
  foreach my $item (sort keys %libtool_clean_directories)
    {
      my $dir = ($item eq '.') ? '' : "$item/";
      # .libs is for Unix, _libs for DOS.
      push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
    }

check_user_variables 'LIBTOOLFLAGS';

# Output the libtool compilation rules.
  $output_rules .= file_contents ('libtool',
				  new Automake::Location,
				   LTRMS => join ("\n", @libtool_rms));
}

# Check for duplicate targets
sub handle_targets ()
{
  my %seen = ();
  my @dups = ();
  @proglist = am_install_var ('progs', 'PROGRAMS',
                              'bin', 'sbin', 'libexec', 'pkglibexec',
                              'noinst', 'check');
  @liblist = am_install_var ('libs', 'LIBRARIES',
                             'lib', 'pkglib', 'noinst', 'check');
  @ltliblist = am_install_var ('ltlib', 'LTLIBRARIES',
			       'noinst', 'lib', 'pkglib', 'check');

# Record duplications that may arise after canonicalization of the
  # base names, in order to prevent object file clashes in the presence
  # of target-specific *FLAGS
  my @targetlist = (@proglist, @liblist, @ltliblist);
  foreach my $pair (@targetlist)
    {
      my $base = canonicalize (basename (@$pair[1]));
      push (@dup_shortnames, $base) if ($seen{$base});
      $seen{$base} = $base;
    }
}

sub handle_programs ()
{
  return if ! @proglist;
  $must_handle_compiled_objects = 1;

my $seen_global_libobjs =
    var ('LDADD') && handle_lib_objects ('', 'LDADD');

foreach my $pair (@proglist)
    {
      my ($where, $one_file) = @$pair;

my $seen_libobjs = 0;
      my $obj = '.$(OBJEXT)';

$known_programs{$one_file} = $where;

# Canonicalize names and check for misspellings.
      my $xname = check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
                                            '_SOURCES', '_OBJECTS',
                                            '_DEPENDENCIES');

$where->push_context ("while processing program '$one_file'");
      $where->set (INTERNAL->get);

my $linker = handle_source_transform ($xname, $one_file, $obj, $where,
                                            NONLIBTOOL => 1, LIBTOOL => 0);

if (var ($xname . "_LDADD"))
	{
	  $seen_libobjs = handle_lib_objects ($xname, $xname . '_LDADD');
	}
      else
	{
	  # User didn't define prog_LDADD override.  So do it.
	  define_variable ($xname . '_LDADD', '$(LDADD)', $where);

# This does a bit too much work.  But we need it to
	  # generate _DEPENDENCIES when appropriate.
	  if (var ('LDADD'))
	    {
	      $seen_libobjs = handle_lib_objects ($xname, 'LDADD');
	    }
	}

reject_var ($xname . '_LIBADD',
		  "use '${xname}_LDADD', not '${xname}_LIBADD'");

set_seen ($xname . '_DEPENDENCIES');
      set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
      set_seen ($xname . '_LDFLAGS');

# Determine program to use for link.
      my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xname);
      $vlink = verbose_flag ($vlink || 'GEN');

# If the resulting program lies in a subdirectory,
      # ensure that the directory exists before we need it.
      my $dirstamp = require_build_directory_maybe ($one_file);

$libtool_clean_directories{dirname ($one_file)} = 1;

$output_rules .= file_contents ('program',
                                      $where,
                                      PROGRAM  => $one_file,
                                      XPROGRAM => $xname,
                                      XLINK    => $xlink,
                                      VERBOSE  => $vlink,
                                      DIRSTAMP => $dirstamp,
                                      EXEEXT   => '$(EXEEXT)');

if ($seen_libobjs || $seen_global_libobjs)
	{
	  if (var ($xname . '_LDADD'))
	    {
	      check_libobjs_sources ($xname, $xname . '_LDADD');
	    }
	  elsif (var ('LDADD'))
	    {
	      check_libobjs_sources ($xname, 'LDADD');
	    }
	}
    }
}

sub handle_libraries ()
{
  return if ! @liblist;
  $must_handle_compiled_objects = 1;

my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
				    'noinst', 'check');

if (@prefix)
    {
      my $var = rvar ($prefix[0] . '_LIBRARIES');
      $var->requires_variables ('library used', 'RANLIB');
    }

define_variable ('AR', 'ar', INTERNAL);
  define_variable ('ARFLAGS', 'cru', INTERNAL);
  define_verbose_tagvar ('AR');

foreach my $pair (@liblist)
    {
      my ($where, $onelib) = @$pair;

my $seen_libobjs = 0;
      # Check that the library fits the standard naming convention.
      my $bn = basename ($onelib);
      if ($bn !~ /^lib.*\.a$/)
	{
	  $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
	  my $suggestion = dirname ($onelib) . "/$bn";
	  $suggestion =~ s|^\./||g;
	  msg ('error-gnu/warn', $where,
	       "'$onelib' is not a standard library name\n"
	       . "did you mean '$suggestion'?")
	}

($known_libraries{$onelib} = $bn) =~ s/\.a$//;

$where->push_context ("while processing library '$onelib'");
      $where->set (INTERNAL->get);

my $obj = '.$(OBJEXT)';

# Canonicalize names and check for misspellings.
      my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
                                           '_OBJECTS', '_DEPENDENCIES',
                                           '_AR');

if (! var ($xlib . '_AR'))
	{
	  define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
	}

# Generate support for conditional object inclusion in
      # libraries.
      if (var ($xlib . '_LIBADD'))
	{
	  if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
	    {
	      $seen_libobjs = 1;
	    }
	}
      else
	{
	  define_variable ($xlib . "_LIBADD", '', $where);
	}

reject_var ($xlib . '_LDADD',
		  "use '${xlib}_LIBADD', not '${xlib}_LDADD'");

# Make sure we at look at this.
      set_seen ($xlib . '_DEPENDENCIES');
      set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');

handle_source_transform ($xlib, $onelib, $obj, $where,
                               NONLIBTOOL => 1, LIBTOOL => 0);

# If the resulting library lies in a subdirectory,
      # make sure this directory will exist.
      my $dirstamp = require_build_directory_maybe ($onelib);
      my $verbose = verbose_flag ('AR');
      my $silent = silent_flag ();

$output_rules .= file_contents ('library',
                                       $where,
                                       VERBOSE  => $verbose,
                                       SILENT   => $silent,
                                       LIBRARY  => $onelib,
                                       XLIBRARY => $xlib,
                                       DIRSTAMP => $dirstamp);

if ($seen_libobjs)
	{
	  if (var ($xlib . '_LIBADD'))
	    {
	      check_libobjs_sources ($xlib, $xlib . '_LIBADD');
	    }
	}

if (! $seen_ar)
	{
	  msg ('extra-portability', $where,
	       "'$onelib': linking libraries using a non-POSIX\n"
	       . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
	}
    }
}

sub handle_ltlibraries ()
{
  return if ! @ltliblist;
  $must_handle_compiled_objects = 1;

my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
				    'noinst', 'check');

if (@prefix)
    {
      my $var = rvar ($prefix[0] . '_LTLIBRARIES');
      $var->requires_variables ('Libtool library used', 'LIBTOOL');
    }

my %instdirs = ();
  my %instsubdirs = ();
  my %instconds = ();
  my %liblocations = ();	# Location (in Makefile.am) of each library.

foreach my $key (@prefix)
    {
      # Get the installation directory of each library.
      my $dir = $key;
      my $strip_subdir = 1;
      if ($dir =~ /^nobase_/)
        {
	  $dir =~ s/^nobase_//;
	  $strip_subdir = 0;
	}
      my $var = rvar ($key . '_LTLIBRARIES');

# We reject libraries which are installed in several places
      # in the same condition, because we can only specify one
      # '-rpath' option.
      $var->traverse_recursively
	(sub
	 {
	   my ($var, $val, $cond, $full_cond) = @_;
	   my $hcond = $full_cond->human;
	   my $where = $var->rdef ($cond)->location;
	   my $ldir = '';
	   $ldir = '/' . dirname ($val)
	     if (!$strip_subdir);
	   # A library cannot be installed in different directories
	   # in overlapping conditions.
	   if (exists $instconds{$val})
	     {
	       my ($msg, $acond) =
		 $instconds{$val}->ambiguous_p ($val, $full_cond);

if ($msg)
		 {
		   error ($where, $msg, partial => 1);
		   my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
		   $dirtxt = "built for '$dir'"
		     if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
		   my $dircond =
		     $full_cond->true ? "" : " in condition $hcond";

error ($where, "'$val' should be $dirtxt$dircond ...",
			  partial => 1);

my $hacond = $acond->human;
		   my $adir = $instdirs{$val}{$acond};
		   my $adirtxt = "installed in '$adir'";
		   $adirtxt = "built for '$adir'"
		     if ($adir eq 'EXTRA' || $adir eq 'noinst'
			 || $adir eq 'check');
		   my $adircond = $acond->true ? "" : " in condition $hacond";

my $onlyone = ($dir ne $adir) ?
		     ("\nLibtool libraries can be built for only one "
		      . "destination") : "";

error ($liblocations{$val}{$acond},
			  "... and should also be $adirtxt$adircond.$onlyone");
		   return;
		 }
	     }
	   else
	     {
	       $instconds{$val} = new Automake::DisjConditions;
	     }
	   $instdirs{$val}{$full_cond} = $dir;
	   $instsubdirs{$val}{$full_cond} = $ldir;
	   $liblocations{$val}{$full_cond} = $where;
	   $instconds{$val} = $instconds{$val}->merge ($full_cond);
	 },
	 sub
	 {
	   return ();
	 },
	 skip_ac_subst => 1);
    }

foreach my $pair (@ltliblist)
    {
      my ($where, $onelib) = @$pair;

my $seen_libobjs = 0;
      my $obj = '.lo';

# Canonicalize names and check for misspellings.
      my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
                                           '_SOURCES', '_OBJECTS',
                                           '_DEPENDENCIES');

# Check that the library fits the standard naming convention.
      my $libname_rx = '^lib.*\.la';
      my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
      my $ldvar2 = var ('LDFLAGS');
      if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
	  || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
	{
	  # Relax name checking for libtool modules.
	  $libname_rx = '\.la';
	}

my $bn = basename ($onelib);
      if ($bn !~ /$libname_rx$/)
	{
	  my $type = 'library';
	  if ($libname_rx eq '\.la')
	    {
	      $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
	      $type = 'module';
	    }
	  else
	    {
	      $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
	    }
	  my $suggestion = dirname ($onelib) . "/$bn";
	  $suggestion =~ s|^\./||g;
	  msg ('error-gnu/warn', $where,
	       "'$onelib' is not a standard libtool $type name\n"
	       . "did you mean '$suggestion'?")
	}

($known_libraries{$onelib} = $bn) =~ s/\.la$//;

$where->push_context ("while processing Libtool library '$onelib'");
      $where->set (INTERNAL->get);

# Make sure we look at these.
      set_seen ($xlib . '_LDFLAGS');
      set_seen ($xlib . '_DEPENDENCIES');
      set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');

reject_var ("${xlib}_LDADD",
		  "use '${xlib}_LIBADD', not '${xlib}_LDADD'");

my $linker = handle_source_transform ($xlib, $onelib, $obj, $where,
                                            NONLIBTOOL => 0, LIBTOOL => 1);

# Determine program to use for link.
      my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xlib);
      $vlink = verbose_flag ($vlink || 'GEN');

my $rpathvar = "am_${xlib}_rpath";
      my $rpath = "\$($rpathvar)";
      foreach my $rcond ($instconds{$onelib}->conds)
	{
	  my $val;
	  if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
	      || $instdirs{$onelib}{$rcond} eq 'noinst'
	      || $instdirs{$onelib}{$rcond} eq 'check')
	    {
	      # It's an EXTRA_ library, so we can't specify -rpath,
	      # because we don't know where the library will end up.
	      # The user probably knows, but generally speaking automake
	      # doesn't -- and in fact configure could decide
	      # dynamically between two different locations.
	      $val = '';
	    }
	  else
	    {
	      $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
	      $val .= $instsubdirs{$onelib}{$rcond}
	        if defined $instsubdirs{$onelib}{$rcond};
	    }
	  if ($rcond->true)
	    {
	      # If $rcond is true there is only one condition and
	      # there is no point defining an helper variable.
	      $rpath = $val;
	    }
	  else
	    {
	      define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
	    }
	}

# If the resulting library lies in a subdirectory,
      # make sure this directory will exist.
      my $dirstamp = require_build_directory_maybe ($onelib);

# Remember to cleanup .libs/ in this directory.
      my $dirname = dirname $onelib;
      $libtool_clean_directories{$dirname} = 1;

$output_rules .= file_contents ('ltlibrary',
                                      $where,
                                      LTLIBRARY  => $onelib,
                                      XLTLIBRARY => $xlib,
                                      RPATH      => $rpath,
                                      XLINK      => $xlink,
                                      VERBOSE    => $vlink,
                                      DIRSTAMP   => $dirstamp);
      if ($seen_libobjs)
	{
	  if (var ($xlib . '_LIBADD'))
	    {
	      check_libobjs_sources ($xlib, $xlib . '_LIBADD');
	    }
	}

if (! $seen_ar)
	{
	  msg ('extra-portability', $where,
	       "'$onelib': linking libtool libraries using a non-POSIX\n"
	       . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
	}
    }
}

# See if any _SOURCES variable were misspelled.
sub check_typos ()
{
  # It is ok if the user sets this particular variable.
  set_seen 'AM_LDFLAGS';

foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
    {
      foreach my $var (variables $primary)
	{
	  my $varname = $var->name;
	  # A configure variable is always legitimate.
	  next if exists $configure_vars{$varname};

for my $cond ($var->conditions->conds)
	    {
	      $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
	      msg_var ('syntax', $var, "variable '$varname' is defined but no"
		       . " program or\nlibrary has '$1' as canonical name"
		       . " (possible typo)")
		unless $var->rdef ($cond)->seen;
	    }
	}
    }
}

sub handle_scripts ()
{
    # NOTE we no longer automatically clean SCRIPTS, because it is
    # useful to sometimes distribute scripts verbatim.  This happens
    # e.g. in Automake itself.
    am_install_var ('-candist', 'scripts', 'SCRIPTS',
                    'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
                    'noinst', 'check');
}

## ------------------------ ##
## Handling Texinfo files.  ##
## ------------------------ ##

# ($OUTFILE, $VFILE)
# scan_texinfo_file ($FILENAME)
# -----------------------------
# $OUTFILE     - name of the info file produced by $FILENAME.
# $VFILE       - name of the version.texi file used (undef if none).
sub scan_texinfo_file
{
  my ($filename) = @_;

my $texi = new Automake::XFile "< $filename";
  verb "reading $filename";

my ($outfile, $vfile);
  while ($_ = $texi->getline)
    {
      if (/^\@setfilename +(\S+)/)
	{
	  # Honor only the first @setfilename.  (It's possible to have
	  # more occurrences later if the manual shows examples of how
	  # to use @setfilename...)
	  next if $outfile;

$outfile = $1;
	  if (index ($outfile, '.') < 0)
	    {
	      msg 'obsolete', "$filename:$.",
	          "use of suffix-less info files is discouraged"
	    }
	  elsif ($outfile !~ /\.info$/)
	    {
	      error ("$filename:$.",
		     "output '$outfile' has unrecognized extension");
	      return;
	    }
	}
      # A "version.texi" file is actually any file whose name matches
      # "vers*.texi".
      elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
	{
	  $vfile = $1;
	}
    }

if (! $outfile)
    {
      # Replace a .texi extension with .info
      $outfile = basename($filename);
      $outfile =~ s/\.[^.]+$//;
      $outfile .= '.info';
    }

return ($outfile, $vfile);
}

# ($DIRSTAMP, @CLEAN_FILES)
# output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
# ------------------------------------------------------------------
# SOURCE - the source Texinfo file
# DEST - the destination Info file
# INSRC - whether DEST should be built in the source tree
# DEPENDENCIES - known dependencies
sub output_texinfo_build_rules
{
  my ($source, $dest, $insrc, @deps) = @_;

# Split 'a.texi' into 'a' and '.texi'.
  my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
  my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);

$ssfx ||= "";
  $dsfx ||= "";

# We can output two kinds of rules: the "generic" rules use Make
  # suffix rules and are appropriate when $source and $dest do not lie
  # in a sub-directory; the "specific" rules are needed in the other
  # case.
  #
  # The former are output only once (this is not really apparent here,
  # but just remember that some logic deeper in Automake will not
  # output the same rule twice); while the later need to be output for
  # each Texinfo source.
  my $generic;
  my $makeinfoflags;
  my $sdir = dirname $source;
  if ($sdir eq '.' && dirname ($dest) eq '.')
    {
      $generic = 1;
      $makeinfoflags = '-I $(srcdir)';
    }
  else
    {
      $generic = 0;
      $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
    }

# A directory can contain two kinds of info files: some built in the
  # source tree, and some built in the build tree.  The rules are
  # different in each case.  However we cannot output two different
  # set of generic rules.  Because in-source builds are more usual, we
  # use generic rules in this case and fall back to "specific" rules
  # for build-dir builds.  (It should not be a problem to invert this
  # if needed.)
  $generic = 0 unless $insrc;

# We cannot use a suffix rule to build info files with an empty
  # extension.  Otherwise we would output a single suffix inference
  # rule, with separate dependencies, as in
  #
  #    .texi:
  #             $(MAKEINFO) ...
  #    foo.info: foo.texi
  #
  # which confuse Solaris make.  (See the Autoconf manual for
  # details.)  Therefore we use a specific rule in this case.  This
  # applies to info files only (dvi and pdf files always have an
  # extension).
  my $generic_info = ($generic && $dsfx) ? 1 : 0;

# If the resulting file lies in a subdirectory,
  # make sure this directory will exist.
  my $dirstamp = require_build_directory_maybe ($dest);

my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;

$output_rules .= file_contents ('texibuild',
				  new Automake::Location,
                                  AM_V_MAKEINFO    => verbose_flag('MAKEINFO'),
                                  AM_V_TEXI2DVI    => verbose_flag('TEXI2DVI'),
                                  AM_V_TEXI2PDF    => verbose_flag('TEXI2PDF'),
				  DEPS             => "@deps",
				  DEST_PREFIX      => $dpfx,
				  DEST_INFO_PREFIX => $dipfx,
				  DEST_SUFFIX      => $dsfx,
				  DIRSTAMP         => $dirstamp,
				  GENERIC          => $generic,
				  GENERIC_INFO     => $generic_info,
				  INSRC		   => $insrc,
				  MAKEINFOFLAGS    => $makeinfoflags,
                                  SILENT           => silent_flag(),
				  SOURCE           => ($generic
						       ? '$<' : $source),
				  SOURCE_INFO      => ($generic_info
						       ? '$<' : $source),
				  SOURCE_REAL      => $source,
				  SOURCE_SUFFIX    => $ssfx,
                                  TEXIQUIET        => verbose_flag('texinfo'),
                                  TEXIDEVNULL      => verbose_flag('texidevnull'),
				  );
  return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
}

# ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
# handle_texinfo_helper ($info_texinfos)
# --------------------------------------
# Handle all Texinfo source; helper for 'handle_texinfo'.
sub handle_texinfo_helper
{
  my ($info_texinfos) = @_;
  my (@infobase, @info_deps_list, @texi_deps);
  my %versions;
  my $done = 0;
  my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');

# Build a regex matching user-cleaned files.
  my $d = var 'DISTCLEANFILES';
  my $c = var 'CLEANFILES';
  my @f = ();
  push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
  push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
  @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
  my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';

foreach my $texi
      ($info_texinfos->value_as_list_recursive (inner_expand => 1))
    {
      my $infobase = $texi;
      if ($infobase =~ s/\.texi$//)
        {
          1; # Nothing more to do.
        }
      elsif ($infobase =~ s/\.(txi|texinfo)$//)
        {
	  msg_var 'obsolete', $info_texinfos,
	          "suffix '.$1' for Texinfo files is discouraged;" .
                  " use '.texi' instead";
        }
      else
	{
	  # FIXME: report line number.
	  err_am "texinfo file '$texi' has unrecognized extension";
	  next;
	}

push @infobase, $infobase;

# If 'version.texi' is referenced by input file, then include
      # automatic versioning capability.
      my ($out_file, $vtexi) =
	scan_texinfo_file ("$relative_dir/$texi")
	or next;
      # Directory of auxiliary files and build by-products used by texi2dvi
      # and texi2pdf.
      push @mostly_cleans, "$infobase.t2d";
      push @mostly_cleans, "$infobase.t2p";

# If the Texinfo source is in a subdirectory, create the
      # resulting info in this subdirectory.  If it is in the current
      # directory, try hard to not prefix "./" because it breaks the
      # generic rules.
      my $outdir = dirname ($texi) . '/';
      $outdir = "" if $outdir eq './';
      $out_file =  $outdir . $out_file;

# Until Automake 1.6.3, .info files were built in the
      # source tree.  This was an obstacle to the support of
      # non-distributed .info files, and non-distributed .texi
      # files.
      #
      # * Non-distributed .texi files is important in some packages
      #   where .texi files are built at make time, probably using
      #   other binaries built in the package itself, maybe using
      #   tools or information found on the build host.  Because
      #   these files are not distributed they are always rebuilt
      #   at make time; they should therefore not lie in the source
      #   directory.  One plan was to support this using
      #   nodist_info_TEXINFOS or something similar.  (Doing this
      #   requires some sanity checks.  For instance Automake should
      #   not allow:
      #      dist_info_TEXINFOS = foo.texi
      #      nodist_foo_TEXINFOS = included.texi
      #   because a distributed file should never depend on a
      #   non-distributed file.)
      #
      # * If .texi files are not distributed, then .info files should
      #   not be distributed either.  There are also cases where one
      #   wants to distribute .texi files, but does not want to
      #   distribute the .info files.  For instance the Texinfo package
      #   distributes the tool used to build these files; it would
      #   be a waste of space to distribute them.  It's not clear
      #   which syntax we should use to indicate that .info files should
      #   not be distributed.  Akim Demaille suggested that eventually
      #   we switch to a new syntax:
      #   |  Maybe we should take some inspiration from what's already
      #   |  done in the rest of Automake.  Maybe there is too much
      #   |  syntactic sugar here, and you want
      #   |     nodist_INFO = bar.info
      #   |     dist_bar_info_SOURCES = bar.texi
      #   |     bar_texi_DEPENDENCIES = foo.texi
      #   |  with a bit of magic to have bar.info represent the whole
      #   |  bar*info set.  That's a lot more verbose that the current
      #   |  situation, but it is # not new, hence the user has less
      #   |  to learn.
      #	  |
      #   |  But there is still too much room for meaningless specs:
      #   |     nodist_INFO = bar.info
      #   |     dist_bar_info_SOURCES = bar.texi
      #   |     dist_PS = bar.ps something-written-by-hand.ps
      #   |     nodist_bar_ps_SOURCES = bar.texi
      #   |     bar_texi_DEPENDENCIES = foo.texi
      #   |  here bar.texi is dist_ in line 2, and nodist_ in 4.
      #
      # Back to the point, it should be clear that in order to support
      # non-distributed .info files, we need to build them in the
      # build tree, not in the source tree (non-distributed .texi
      # files are less of a problem, because we do not output build
      # rules for them).  In Automake 1.7 .info build rules have been
      # largely cleaned up so that .info files get always build in the
      # build tree, even when distributed.  The idea was that
      #   (1) if during a VPATH build the .info file was found to be
      #       absent or out-of-date (in the source tree or in the
      #       build tree), Make would rebuild it in the build tree.
      #       If an up-to-date source-tree of the .info file existed,
      #       make would not rebuild it in the build tree.
      #   (2) having two copies of .info files, one in the source tree
      #       and one (newer) in the build tree is not a problem
      #       because 'make dist' always pick files in the build tree
      #       first.
      # However it turned out the be a bad idea for several reasons:
      #   * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
      #     like GNU Make on point (1) above.  These implementations
      #     of Make would always rebuild .info files in the build
      #     tree, even if such files were up to date in the source
      #     tree.  Consequently, it was impossible to perform a VPATH
      #     build of a package containing Texinfo files using these
      #     Make implementations.
      #     (Refer to the Autoconf Manual, section "Limitation of
      #     Make", paragraph "VPATH", item "target lookup", for
      #     an account of the differences between these
      #     implementations.)
      #   * The GNU Coding Standards require these files to be built
      #     in the source-tree (when they are distributed, that is).
      #   * Keeping a fresher copy of distributed files in the
      #     build tree can be annoying during development because
      #     - if the files is kept under CVS, you really want it
      #       to be updated in the source tree
      #     - it is confusing that 'make distclean' does not erase
      #       all files in the build tree.
      #
      # Consequently, starting with Automake 1.8, .info files are
      # built in the source tree again.  Because we still plan to
      # support non-distributed .info files at some point, we
      # have a single variable ($INSRC) that controls whether
      # the current .info file must be built in the source tree
      # or in the build tree.  Actually this variable is switched
      # off in two cases:
      #  (1) For '.info' files that appear to be cleaned; this is for
      #      backward compatibility with package such as Texinfo,
      #      which do things like
      #        info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
      #        DISTCLEANFILES = texinfo texinfo-* info*.info*
      #        # Do not create info files for distribution.
      #        dist-info:
      #      in order not to distribute .info files.
      #  (2) When the undocumented option 'info-in-builddir' is given.
      #      This is done to allow the developers of GCC, GDB, GNU
      #      binutils and the GNU bfd library to force the '.info' files
      #      to be generated in the builddir rather than the srcdir, as
      #      was once done when the (now removed) 'cygnus' option was
      #      given.  See automake bug#11034 for more discussion.
      my $insrc = 1;
      my $soutdir = '$(srcdir)/' . $outdir;

if (option 'info-in-builddir')
        {
          $insrc = 0;
        }
      elsif ($out_file =~ $user_cleaned_files)
        {
          $insrc = 0;
          msg 'obsolete', "$am_file.am", <<EOF;
Oops!
    It appears this file (or files included by it) are triggering
    an undocumented, soon-to-be-removed automake hack.
    Future automake versions will no longer place in the builddir
    (rather than in the srcdir) the generated '.info' files that
    appear to be cleaned, by e.g. being listed in CLEANFILES or
    DISTCLEANFILES.
    If you want your '.info' files to be placed in the builddir
    rather than in the srcdir, you have to use the shiny new
    'info-in-builddir' automake option.
EOF
        }

$outdir = $soutdir if $insrc;

# If user specified file_TEXINFOS, then use that as explicit
      # dependency list.
      @texi_deps = ();
      push (@texi_deps, "${soutdir}${vtexi}") if $vtexi;

my $canonical = canonicalize ($infobase);
      if (var ($canonical . "_TEXINFOS"))
	{
	  push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
	  push_dist_common ('$(' . $canonical . '_TEXINFOS)');
	}

my ($dirstamp, @cfiles) =
	output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
      push (@texi_cleans, @cfiles);

push (@info_deps_list, $out_file);

# If a vers*.texi file is needed, emit the rule.
      if ($vtexi)
	{
	  err_am ("'$vtexi', included in '$texi', "
		  . "also included in '$versions{$vtexi}'")
	    if defined $versions{$vtexi};
	  $versions{$vtexi} = $texi;

# We number the stamp-vti files.  This is doable since the
	  # actual names don't matter much.  We only number starting
	  # with the second one, so that the common case looks nice.
	  my $vti = ($done ? $done : 'vti');
	  ++$done;

# This is ugly, but it is our historical practice.
	  if ($config_aux_dir_set_in_configure_ac)
	    {
	      require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
					    'mdate-sh');
	    }
	  else
	    {
	      require_file_with_macro (TRUE, 'info_TEXINFOS',
				       FOREIGN, 'mdate-sh');
	    }

my $conf_dir;
	  if ($config_aux_dir_set_in_configure_ac)
	    {
	      $conf_dir = "$am_config_aux_dir/";
	    }
	  else
	    {
	      $conf_dir = '$(srcdir)/';
	    }
	  $output_rules .= file_contents ('texi-vers',
					  new Automake::Location,
					  TEXI     => $texi,
					  VTI      => $vti,
					  STAMPVTI => "${soutdir}stamp-$vti",
					  VTEXI    => "$soutdir$vtexi",
					  MDDIR    => $conf_dir,
					  DIRSTAMP => $dirstamp);
	}
    }

# Handle location of texinfo.tex.
  my $need_texi_file = 0;
  my $texinfodir;
  if (var ('TEXINFO_TEX'))
    {
      # The user defined TEXINFO_TEX so assume he knows what he is
      # doing.
      $texinfodir = ('$(srcdir)/'
		     . dirname (variable_value ('TEXINFO_TEX')));
    }
  elsif ($config_aux_dir_set_in_configure_ac)
    {
      $texinfodir = $am_config_aux_dir;
      define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
      $need_texi_file = 2; # so that we require_conf_file later
    }
  else
    {
      $texinfodir = '$(srcdir)';
      $need_texi_file = 1;
    }
  define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);

push (@dist_targets, 'dist-info');

if (! option 'no-installinfo')
    {
      # Make sure documentation is made and installed first.  Use
      # $(INFO_DEPS), not 'info', because otherwise recursive makes
      # get run twice during "make all".
      unshift (@all, '$(INFO_DEPS)');
    }

define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
  define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
  define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
  define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);

# This next isn't strictly needed now -- the places that look here
  # could easily be changed to look in info_TEXINFOS.  But this is
  # probably better, in case noinst_TEXINFOS is ever supported.
  define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);

# Do some error checking.  Note that this file is not required
  # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
  # up above.
  if ($need_texi_file && ! option 'no-texinfo.tex')
    {
      if ($need_texi_file > 1)
	{
	  require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
					'texinfo.tex');
	}
      else
	{
	  require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
				   'texinfo.tex');
	}
    }

return (makefile_wrap ("", "\t  ", @mostly_cleans),
	  makefile_wrap ("", "\t  ", @texi_cleans),
	  makefile_wrap ("", "\t  ", @maint_cleans));
}

sub handle_texinfo ()
{
  reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
  # FIXME: I think this is an obsolete future feature name.
  reject_var 'html_TEXINFOS', "HTML generation not yet supported";

my $info_texinfos = var ('info_TEXINFOS');
  my ($mostlyclean, $clean, $maintclean) = ('', '', '');
  if ($info_texinfos)
    {
      define_verbose_texinfo;
      ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
      chomp $mostlyclean;
      chomp $clean;
      chomp $maintclean;
    }

$output_rules .=  file_contents ('texinfos',
				   new Automake::Location,
                                   AM_V_DVIPS    => verbose_flag('DVIPS'),
				   MOSTLYCLEAN   => $mostlyclean,
				   TEXICLEAN     => $clean,
				   MAINTCLEAN    => $maintclean,
				   'LOCAL-TEXIS' => !!$info_texinfos,
                                   TEXIQUIET     => verbose_flag('texinfo'));
}

sub handle_man_pages ()
{
  reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";

# Find all the sections in use.  We do this by first looking for
  # "standard" sections, and then looking for any additional
  # sections used in man_MANS.
  my (%sections, %notrans_sections, %trans_sections,
      %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
  # We handle nodist_ for uniformity.  man pages aren't distributed
  # by default so it isn't actually very important.
  foreach my $npfx ('', 'notrans_')
    {
      foreach my $pfx ('', 'dist_', 'nodist_')
	{
	  # Add more sections as needed.
	  foreach my $section ('0'..'9', 'n', 'l')
	    {
	      my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
	      if (var ($varname))
		{
		  $sections{$section} = 1;
		  $varname = '$(' . $varname . ')';
		  if ($npfx eq 'notrans_')
		    {
		      $notrans_sections{$section} = 1;
		      $notrans_sect_vars{$varname} = 1;
		    }
		  else
		    {
		      $trans_sections{$section} = 1;
		      $trans_sect_vars{$varname} = 1;
		    }

push_dist_common ($varname)
		    if $pfx eq 'dist_';
		}
	    }

my $varname = $npfx . $pfx . 'man_MANS';
	  my $var = var ($varname);
	  if ($var)
	    {
	      foreach ($var->value_as_list_recursive)
		{
		  # A page like 'foo.1c' goes into man1dir.
		  if (/\.([0-9a-z])([a-z]*)$/)
		    {
		      $sections{$1} = 1;
		      if ($npfx eq 'notrans_')
			{
			  $notrans_sections{$1} = 1;
			}
		      else
			{
			  $trans_sections{$1} = 1;
			}
		    }
		}

$varname = '$(' . $varname . ')';
	      if ($npfx eq 'notrans_')
		{
		  $notrans_vars{$varname} = 1;
		}
	      else
		{
		  $trans_vars{$varname} = 1;
		}
	      push_dist_common ($varname)
		if $pfx eq 'dist_';
	    }
	}
    }

return unless %sections;

my @unsorted_deps;

# Build section independent variables.
  my $have_notrans = %notrans_vars;
  my @notrans_list = sort keys %notrans_vars;
  my $have_trans = %trans_vars;
  my @trans_list = sort keys %trans_vars;

# Now for each section, generate an install and uninstall rule.
  # Sort sections so output is deterministic.
  foreach my $section (sort keys %sections)
    {
      # Build section dependent variables.
      my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
      my $trans_mans = $have_trans || exists $trans_sections{$section};
      my (%notrans_this_sect, %trans_this_sect);
      my $expr = 'man' . $section . '_MANS';
      foreach my $varname (keys %notrans_sect_vars)
	{
	  if ($varname =~ /$expr/)
	    {
	      $notrans_this_sect{$varname} = 1;
	    }
	}
      foreach my $varname (keys %trans_sect_vars)
	{
	  if ($varname =~ /$expr/)
	    {
	      $trans_this_sect{$varname} = 1;
	    }
	}
      my @notrans_sect_list = sort keys %notrans_this_sect;
      my @trans_sect_list = sort keys %trans_this_sect;
      @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
                        keys %notrans_this_sect, keys %trans_this_sect);
      my @deps = sort @unsorted_deps;
      $output_rules .= file_contents ('mans',
                                      new Automake::Location,
                                      SECTION           => $section,
                                      DEPS              => "@deps",
                                      NOTRANS_MANS      => $notrans_mans,
                                      NOTRANS_SECT_LIST => "@notrans_sect_list",
                                      HAVE_NOTRANS      => $have_notrans,
                                      NOTRANS_LIST      => "@notrans_list",
                                      TRANS_MANS        => $trans_mans,
                                      TRANS_SECT_LIST   => "@trans_sect_list",
                                      HAVE_TRANS        => $have_trans,
                                      TRANS_LIST        => "@trans_list");
    }

@unsorted_deps  = (keys %notrans_vars, keys %trans_vars,
                     keys %notrans_sect_vars, keys %trans_sect_vars);
  my @mans = sort @unsorted_deps;
  $output_vars .= file_contents ('mans-vars',
				 new Automake::Location,
				 MANS => "@mans");

push (@all, '$(MANS)')
    unless option 'no-installman';
}

sub handle_data ()
{
    am_install_var ('-noextra', '-candist', 'data', 'DATA',
                    'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
                    'ps', 'sysconf', 'sharedstate', 'localstate',
                    'pkgdata', 'lisp', 'noinst', 'check');
}

sub handle_tags ()
{
    my @config;
    foreach my $spec (@config_headers)
      {
        my ($out, @ins) = split_config_file_spec ($spec);
	foreach my $in (@ins)
	  {
            # If the config header source is in this directory,
	    # require it.
	    push @config, basename ($in)
              if $relative_dir eq dirname ($in);
	   }
      }

define_variable ('am__tagged_files',
                     '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
                     . " @config", INTERNAL);

if (rvar('am__tagged_files')->value_as_list_recursive
          || var ('ETAGS_ARGS') || var ('SUBDIRS'))
      {
	$output_rules .= file_contents ('tags', new Automake::Location);
	set_seen 'TAGS_DEPENDENCIES';
      }
    else
      {
        reject_var ('TAGS_DEPENDENCIES',
		    "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
		    . " without\nsources or 'ETAGS_ARGS'");
	# Every Makefile must define some sort of TAGS rule.
	# Otherwise, it would be possible for a top-level "make TAGS"
	# to fail because some subdirectory failed.  Ditto ctags and
        # cscope.
        $output_rules .=
          "tags TAGS:\n\n" .
          "ctags CTAGS:\n\n" .
          "cscope cscopelist:\n\n";
      }
}

# user_phony_rule ($NAME)
# -----------------------
# Return false if rule $NAME does not exist.  Otherwise,
# declare it as phony, complete its definition (in case it is
# conditional), and return its Automake::Rule instance.
sub user_phony_rule
{
  my ($name) = @_;
  my $rule = rule $name;
  if ($rule)
    {
      depend ('.PHONY', $name);
      # Define $NAME in all condition where it is not already defined,
      # so that it is always OK to depend on $NAME.
      for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
	{
	  Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
				  $c, INTERNAL);
	  $output_rules .= $c->subst_string . "$name:\n";
	}
    }
  return $rule;
}

# Handle 'dist' target.
sub handle_dist ()
{
  # Substitutions for distdir.am
  my %transform;

# Define DIST_SUBDIRS.  This must always be done, regardless of the
  # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
  my $subdirs = var ('SUBDIRS');
  if ($subdirs)
    {
      # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
      # to all possible directories, and use it.  If DIST_SUBDIRS is
      # defined, just use it.

# Note that we check DIST_SUBDIRS first on purpose, so that
      # we don't call has_conditional_contents for now reason.
      # (In the past one project used so many conditional subdirectories
      # that calling has_conditional_contents on SUBDIRS caused
      # automake to grow to 150Mb -- this should not happen with
      # the current implementation of has_conditional_contents,
      # but it's more efficient to avoid the call anyway.)
      if (var ('DIST_SUBDIRS'))
	{
	}
      elsif ($subdirs->has_conditional_contents)
	{
	  define_pretty_variable
	    ('DIST_SUBDIRS', TRUE, INTERNAL,
	     uniq ($subdirs->value_as_list_recursive));
	}
      else
	{
	  # We always define this because that is what 'distclean'
	  # wants.
	  define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
				  '$(SUBDIRS)');
	}
    }

# The remaining definitions are only required when a dist target is used.
  return if option 'no-dist';

# At least one of the archive formats must be enabled.
  if ($relative_dir eq '.')
    {
      my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
      $archive_defined ||=
	grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz zstd);
      error (option 'no-dist-gzip',
	     "no-dist-gzip specified but no dist-* specified,\n"
	     . "at least one archive format must be enabled")
	unless $archive_defined;
    }

# Look for common files that should be included in distribution.
  # If the aux dir is set, and it does not have a Makefile.am, then
  # we check for these files there as well.
  my $check_aux = 0;
  if ($relative_dir eq '.'
      && $config_aux_dir_set_in_configure_ac)
    {
      if (! is_make_dir ($config_aux_dir))
	{
	  $check_aux = 1;
	}
    }
  foreach my $cfile (@toplevelmd_ok, @common_files)
    {
      if (dir_has_case_matching_file ($relative_dir, $cfile)
	  # The file might be absent, but if it can be built it's ok.
	  || rule $cfile)
	{
	  push_dist_common ($cfile);
	}
      elsif (grep { $_ eq $cfile } @toplevelmd_ok)
        { # Irritatingly, have to repeat the checks, now for .md files;
          # we want to prefer non-.md, so do this second, and only "elsif".
          if (dir_has_case_matching_file ($relative_dir, "$cfile.md")
	      || rule "$cfile.md")
  	    {
	      push_dist_common ("$cfile.md");
	    }
        }

# Don't use 'elsif' here because a file might meaningfully
      # appear in both $relative_dir and $config_aux_dir.
      if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
	{
	  push_dist_common ("$config_aux_dir/$cfile")
	}
      elsif ($check_aux && grep { $_ eq $cfile } @toplevelmd_ok)
        {
          if (dir_has_case_matching_file ($config_aux_dir, "$cfile.md")
	      || rule "$cfile.md")
  	    {
	      push_dist_common ("$cfile.md");
	    }
        }
    }

# We might copy elements from @configure_dist_common to
  # @dist_common if we think we need to.  If the file appears in our
  # directory, we would have discovered it already, so we don't
  # check that.  But if the file is in a subdir without a Makefile,
  # we want to distribute it here if we are doing '.'.  Ugly!
  # Also, in some corner cases, it's possible that the following code
  # will cause the same file to appear in the $(DIST_COMMON) variables
  # of two distinct Makefiles; but this is not a problem, since the
  # 'distdir' target in 'lib/am/distdir.am' can deal with the same
  # file being distributed multiple times.
  # See also automake bug#9651.
  if ($relative_dir eq '.')
    {
      foreach my $file (@configure_dist_common)
	{
	  my $dir = dirname ($file);
	  push_dist_common ($file)
	    if ($dir eq '.' || ! is_make_dir ($dir));
	}
      @configure_dist_common = ();
    }

# $(am__DIST_COMMON): files to be distributed automatically.  Will be
  # appended to $(DIST_COMMON) in the generated Makefile.
  # Use 'sort' so that the expansion of $(DIST_COMMON) in the generated
  # Makefile is deterministic, in face of m4 and/or perl randomizations
  # (see automake bug#17908).
  define_pretty_variable ('am__DIST_COMMON', TRUE, INTERNAL,
                          uniq (sort @dist_common));

# Now that we've processed @dist_common, disallow further attempts
  # to modify it.
  $handle_dist_run = 1;

$transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
  $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;

# If the target 'dist-hook' exists, make sure it is run.  This
  # allows users to do random weird things to the distribution
  # before it is packaged up.
  push (@dist_targets, 'dist-hook')
    if user_phony_rule 'dist-hook';
  $transform{'DIST-TARGETS'} = join (' ', @dist_targets);

my $flm = option ('filename-length-max');
  my $filename_filter = $flm ? '.' x $flm->[1] : '';

$output_rules .= file_contents ('distdir',
				  new Automake::Location,
				  %transform,
				  FILENAME_FILTER => $filename_filter);
}

# check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
# -------------------------------------------------------
# Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
# name.  Use $WHERE as a location in the diagnostic, if any.
sub check_directory
{
  my ($dir, $where, $reldir) = @_;
  $reldir = '.' unless defined $reldir;

error $where, "required directory $reldir/$dir does not exist"
    unless -d "$reldir/$dir";

# If an 'obj/' directory exists, BSD make will enter it before
  # reading 'Makefile'.  Hence the 'Makefile' in the current directory
  # will not be read.
  #
  #  % cat Makefile
  #  all:
  #          echo Hello
  #  % cat obj/Makefile
  #  all:
  #          echo World
  #  % make      # GNU make
  #  echo Hello
  #  Hello
  #  % pmake     # BSD make
  #  echo World
  #  World
  msg ('portability', $where,
       "naming a subdirectory 'obj' causes troubles with BSD make")
    if $dir eq 'obj';

# 'aux' is probably the most important of the following forbidden name,
  # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
  msg ('portability', $where,
       "name '$dir' is reserved on W32 and DOS platforms")
    if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
}

# check_directories_in_var ($VARIABLE)
# ------------------------------------
# Recursively check all items in variables $VARIABLE as directories
sub check_directories_in_var
{
  my ($var) = @_;
  $var->traverse_recursively
    (sub
     {
       my ($var, $val, $cond, $full_cond) = @_;
       check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
       return ();
     },
     undef,
     skip_ac_subst => 1);
}

sub handle_subdirs ()
{
  my $subdirs = var ('SUBDIRS');
  return
    unless $subdirs;

check_directories_in_var $subdirs;

my $dsubdirs = var ('DIST_SUBDIRS');
  check_directories_in_var $dsubdirs
    if $dsubdirs;

$output_rules .= file_contents ('subdirs', new Automake::Location);
  rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
}

# ($REGEN, @DEPENDENCIES)
# scan_aclocal_m4
# ---------------
# If aclocal.m4 creation is automated, return the list of its dependencies.
sub scan_aclocal_m4 ()
{
  my $regen_aclocal = 0;

set_seen 'CONFIG_STATUS_DEPENDENCIES';
  set_seen 'CONFIGURE_DEPENDENCIES';

if (-f 'aclocal.m4')
    {
      define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);

my $aclocal = new Automake::XFile "< aclocal.m4";
      my $line = $aclocal->getline;
      $regen_aclocal = $line =~ 'generated automatically by aclocal';
    }

my @ac_deps = ();

if (set_seen ('ACLOCAL_M4_SOURCES'))
    {
      push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
      msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
	       "'ACLOCAL_M4_SOURCES' is obsolete.\n"
	       . "It should be safe to simply remove it");
    }

# Note that it might be possible that aclocal.m4 doesn't exist but
  # should be auto-generated.  This case probably isn't very
  # important.

return ($regen_aclocal, @ac_deps);
}

# Helper function for 'substitute_ac_subst_variables'.
sub substitute_ac_subst_variables_worker
{
  my ($token) = @_;
  return "\@$token\@" if var $token;
  return "\${$token\}";
}

# substitute_ac_subst_variables ($TEXT)
# -------------------------------------
# Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
# variable.
sub substitute_ac_subst_variables
{
  my ($text) = @_;
  $text =~ s/\$[{]([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge;
  return $text;
}

# @DEPENDENCIES
# prepend_srcdir (@INPUTS)
# ------------------------
# Prepend $(srcdir) or $(top_srcdir) to all @INPUTS.  The idea is that
# if an input file has a directory part the same as the current
# directory, then the directory part is simply replaced by $(srcdir).
# But if the directory part is different, then $(top_srcdir) is
# prepended.
sub prepend_srcdir
{
  my (@inputs) = @_;
  my @newinputs;

foreach my $single (@inputs)
    {
      if (dirname ($single) eq $relative_dir)
	{
	  push (@newinputs, '$(srcdir)/' . basename ($single));
	}
      else
	{
	  push (@newinputs, '$(top_srcdir)/' . $single);
	}
    }
  return @newinputs;
}

# @DEPENDENCIES
# rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
# ---------------------------------------------------
# Compute a list of dependencies appropriate for the rebuild
# rule of
#   AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
# Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
sub rewrite_inputs_into_dependencies
{
  my ($file, @inputs) = @_;
  my @res = ();

for my $i (@inputs)
    {
      # We cannot create dependencies on shell variables.
      next if (substitute_ac_subst_variables $i) =~ /\$/;

if (exists $ac_config_files_location{$i} && $i ne $file)
	{
	  my $di = dirname $i;
	  if ($di eq $relative_dir)
	    {
	      $i = basename $i;
	    }
	  # In the top-level Makefile we do not use $(top_builddir), because
	  # we are already there, and since the targets are built without
	  # a $(top_builddir), it helps BSD Make to match them with
	  # dependencies.
	  elsif ($relative_dir ne '.')
	    {
	      $i = '$(top_builddir)/' . $i;
	    }
	}
      else
	{
	  msg ('error', $ac_config_files_location{$file},
	       "required file '$i' not found")
	    unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
	  ($i) = prepend_srcdir ($i);
	  push_dist_common ($i);
	}
      push @res, $i;
    }
  return @res;
}

# handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
# -----------------------------------------------------------------
# Handle remaking and configure stuff.
# We need the name of the input file, to do proper remaking rules.
sub handle_configure
{
  my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;

prog_error 'empty @inputs'
    unless @inputs;

my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
							    $makefile_in);
  my $rel_makefile = basename $makefile;

my $colon_infile = ':' . join (':', @inputs);
  $colon_infile = '' if $colon_infile eq ":$makefile.in";
  my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
  my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
  define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
			  @configure_deps, @aclocal_m4_deps,
			  '$(top_srcdir)/' . $configure_ac);
  my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
  push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
  define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
			  @configuredeps);

my $automake_options = '--' . $strictness_name .
			 (global_option 'no-dependencies' ? ' --ignore-deps' : '');

$output_rules .= file_contents
    ('configure',
     new Automake::Location,
     MAKEFILE              => $rel_makefile,
     'MAKEFILE-DEPS'       => "@rewritten",
     'CONFIG-MAKEFILE'     => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
     'MAKEFILE-IN'         => $rel_makefile_in,
     'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
     'MAKEFILE-IN-DEPS'    => "@include_stack",
     'MAKEFILE-AM'         => $rel_makefile_am,
     'AUTOMAKE-OPTIONS'    => $automake_options,
     'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
     'REGEN-ACLOCAL-M4'    => $regen_aclocal_m4,
     VERBOSE               => verbose_flag ('GEN'));

if ($relative_dir eq '.')
    {
      push_dist_common ('acconfig.h')
	if -f 'acconfig.h';
    }

# If we have a configure header, require it.
  my $hdr_index = 0;
  my @distclean_config;
  foreach my $spec (@config_headers)
    {
      $hdr_index += 1;
      # $CONFIG_H_PATH: config.h from top level.
      my ($config_h_path, @ins) = split_config_file_spec ($spec);
      my $config_h_dir = dirname ($config_h_path);

# If the header is in the current directory we want to build
      # the header here.  Otherwise, if we're at the topmost
      # directory and the header's directory doesn't have a
      # Makefile, then we also want to build the header.
      if ($relative_dir eq $config_h_dir
	  || ($relative_dir eq '.' && ! is_make_dir ($config_h_dir)))
	{
	  my ($cn_sans_dir, $stamp_dir);
	  if ($relative_dir eq $config_h_dir)
	    {
	      $cn_sans_dir = basename ($config_h_path);
	      $stamp_dir = '';
	    }
	  else
	    {
	      $cn_sans_dir = $config_h_path;
	      if ($config_h_dir eq '.')
		{
		  $stamp_dir = '';
		}
	      else
		{
		  $stamp_dir = $config_h_dir . '/';
		}
	    }

# This will also distribute all inputs.
	  @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);

# Cannot define rebuild rules for filenames with shell variables.
	  next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;

# Header defined in this directory.
	  my @files;
	  if (-f $config_h_path . '.top')
	    {
	      push (@files, "$cn_sans_dir.top");
	    }
	  if (-f $config_h_path . '.bot')
	    {
	      push (@files, "$cn_sans_dir.bot");
	    }

push_dist_common (@files);

# For now, acconfig.h can only appear in the top srcdir.
	  if (-f 'acconfig.h')
	    {
	      push (@files, '$(top_srcdir)/acconfig.h');
	    }

my $stamp = "${stamp_dir}stamp-h${hdr_index}";
	  $output_rules .=
	    file_contents ('remake-hdr',
			   new Automake::Location,
			   FILES            => "@files",
			   'FIRST-HDR'      => ($hdr_index == 1),
			   CONFIG_H         => $cn_sans_dir,
			   CONFIG_HIN       => $ins[0],
			   CONFIG_H_DEPS    => "@ins",
			   CONFIG_H_PATH    => $config_h_path,
			   STAMP            => "$stamp");

push @distclean_config, $cn_sans_dir, $stamp;
	}
    }

$output_rules .= file_contents ('clean-hdr',
				  new Automake::Location,
				  FILES => "@distclean_config")
    if @distclean_config;

# Distribute and define mkinstalldirs only if it is already present
  # in the package, for backward compatibility (some people may still
  # use $(mkinstalldirs)).
  # TODO: start warning about this in Automake 1.14, and have
  # TODO: Automake 2.0 drop it (and the mkinstalldirs script
  # TODO: as well).
  my $mkidpath = "$config_aux_dir/mkinstalldirs";
  if (-f $mkidpath)
    {
      # Use require_file so that any existing script gets updated
      # by --force-missing.
      require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
      define_variable ('mkinstalldirs',
		       "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
    }
  else
    {
      # Use $(install_sh), not $(MKDIR_P) because the latter requires
      # at least one argument, and $(mkinstalldirs) used to work
      # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
      # Also, $(MKDIR_P) uses the umask for any intermediate directories
      # created, whereas we want them to be created with umask 022
      # so that they are mode 755.
      define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
    }

reject_var ('CONFIG_HEADER',
	      "'CONFIG_HEADER' is an anachronism; now determined "
	      . "automatically\nfrom '$configure_ac'");

my @config_h;
  foreach my $spec (@config_headers)
    {
      my ($out, @ins) = split_config_file_spec ($spec);
      # Generate CONFIG_HEADER define.
      if ($relative_dir eq dirname ($out))
	{
	  push @config_h, basename ($out);
	}
      else
	{
	  push @config_h, "\$(top_builddir)/$out";
	}
    }
  define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
    if @config_h;

# Now look for other files in this directory which must be remade
  # by config.status, and generate rules for them.
  my @actual_other_files = ();
  # These get cleaned only in a VPATH build.
  my @actual_other_vpath_files = ();
  foreach my $lfile (@other_input_files)
    {
      my $file;
      my @inputs;
      if ($lfile =~ /^([^:]*):(.*)$/)
	{
	  # This is the ":" syntax of AC_OUTPUT.
	  $file = $1;
	  @inputs = split (':', $2);
	}
      else
	{
	  # Normal usage.
	  $file = $lfile;
	  @inputs = $file . '.in';
	}

# Automake files should not be stored in here, but in %MAKE_LIST.
      prog_error ("$lfile in \@other_input_files\n"
		  . "\@other_input_files = (@other_input_files)")
	if -f $file . '.am';

my $local = basename ($file);

# We skip files that aren't in this directory.  However, if
      # the file's directory does not have a Makefile, and we are
      # currently doing '.', then we create a rule to rebuild the
      # file in the subdir.
      my $fd = dirname ($file);
      if ($fd ne $relative_dir)
	{
	  if ($relative_dir eq '.' && ! is_make_dir ($fd))
	    {
	      $local = $file;
	    }
	  else
	    {
	      next;
	    }
	}

my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);

# Cannot output rules for shell variables.
      next if (substitute_ac_subst_variables $local) =~ /\$/;

my $condstr = '';
      my $cond = $ac_config_files_condition{$lfile};
      if (defined $cond)
        {
	  $condstr = $cond->subst_string;
	  Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
				  $ac_config_files_location{$file});
        }
      $output_rules .= ($condstr . $local . ': '
			. '$(top_builddir)/config.status '
			. "@rewritten_inputs\n"
			. $condstr . "\t"
			. 'cd $(top_builddir) && '
			. '$(SHELL) ./config.status '
			. ($relative_dir eq '.' ? '' : '$(subdir)/')
			. '$@'
			. "\n");
      push (@actual_other_files, $local);
    }

# For links we should clean destinations and distribute sources.
  foreach my $spec (@config_links)
    {
      my ($link, $file) = split /:/, $spec;
      # Some people do AC_CONFIG_LINKS($computed).  We only handle
      # the DEST:SRC form.
      next unless $file;
      my $where = $ac_config_files_location{$link};

# Skip destinations that contain shell variables.
      if ((substitute_ac_subst_variables $link) !~ /\$/)
	{
	  # We skip links that aren't in this directory.  However, if
	  # the link's directory does not have a Makefile, and we are
	  # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
	  # in '.'s Makefile.in.
	  my $local = basename ($link);
	  my $fd = dirname ($link);
	  if ($fd ne $relative_dir)
	    {
	      if ($relative_dir eq '.' && ! is_make_dir ($fd))
		{
		  $local = $link;
		}
	      else
		{
		  $local = undef;
		}
	    }
	  if ($file ne $link)
	    {
	      push @actual_other_files, $local if $local;
	    }
	  else
	    {
	      push @actual_other_vpath_files, $local if $local;
	    }
	}

# Do not process sources that contain shell variables.
      if ((substitute_ac_subst_variables $file) !~ /\$/)
	{
	  my $fd = dirname ($file);

# We distribute files that are in this directory.
	  # At the top-level ('.') we also distribute files whose
	  # directory does not have a Makefile.
	  if (($fd eq $relative_dir)
	      || ($relative_dir eq '.' && ! is_make_dir ($fd)))
	    {
	      # The following will distribute $file as a side-effect when
	      # it is appropriate (i.e., when $file is not already an output).
	      # We do not need the result, just the side-effect.
	      rewrite_inputs_into_dependencies ($link, $file);
	    }
	}
    }

# These files get removed by "make distclean".
  define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
			  @actual_other_files);
  define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
			  @actual_other_vpath_files);
}

sub handle_headers ()
{
    my @r = am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
			    'oldinclude', 'pkginclude',
			    'noinst', 'check');
    foreach (@r)
    {
      next unless $_->[1] =~ /\..*$/;
      saw_extension ($&);
    }
}

sub handle_gettext ()
{
  return if ! $seen_gettext || $relative_dir ne '.';

my $subdirs = var 'SUBDIRS';

if (! $subdirs)
    {
      err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
      return;
    }

# Perform some sanity checks to help users get the right setup.
  # We disable these tests when po/ doesn't exist in order not to disallow
  # unusual gettext setups.
  #
  # Bruno Haible:
  # | The idea is:
  # |
  # |  1) If a package doesn't have a directory po/ at top level, it
  # |     will likely have multiple po/ directories in subpackages.
  # |
  # |  2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
  # |     is used without 'external'. It is also useful to warn for the
  # |     presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
  # |     warnings apply only to the usual layout of packages, therefore
  # |     they should both be disabled if no po/ directory is found at
  # |     top level.

if (-d 'po')
    {
      my @subdirs = $subdirs->value_as_list_recursive;

msg_var ('syntax', $subdirs,
	       "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
	if ! grep ($_ eq 'po', @subdirs);

# intl/ is not required when AM_GNU_GETTEXT is called with the
      # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
      msg_var ('syntax', $subdirs,
	       "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
	if (! ($seen_gettext_external && ! $seen_gettext_intl)
	    && ! grep ($_ eq 'intl', @subdirs));

# intl/ should not be used with AM_GNU_GETTEXT([external]), except
      # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
      msg_var ('syntax', $subdirs,
	       "'intl' should not be in SUBDIRS when "
	       . "AM_GNU_GETTEXT([external]) is used")
	if ($seen_gettext_external && ! $seen_gettext_intl
	    && grep ($_ eq 'intl', @subdirs));
    }

require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
}

# Emit makefile footer.
sub handle_footer ()
{
    reject_rule ('.SUFFIXES',
		 "use variable 'SUFFIXES', not target '.SUFFIXES'");

# Note: AIX 4.1 /bin/make will fail if any suffix rule appears
    # before .SUFFIXES.  So we make sure that .SUFFIXES appears before
    # anything else, by sticking it right after the default: target.
    $output_header .= ".SUFFIXES:\n";
    my $suffixes = var 'SUFFIXES';
    my @suffixes = Automake::Rule::suffixes;
    if (@suffixes || $suffixes)
    {
	# Make sure SUFFIXES has unique elements.  Sort them to ensure
	# the output remains consistent.  However, $(SUFFIXES) is
	# always at the start of the list, unsorted.  This is done
	# because make will choose rules depending on the ordering of
	# suffixes, and this lets the user have some control.  Push
	# actual suffixes, and not $(SUFFIXES).  Some versions of make
	# do not like variable substitutions on the .SUFFIXES line.
	my @user_suffixes = ($suffixes
			     ? $suffixes->value_as_list_recursive : ());

my %suffixes = map { $_ => 1 } @suffixes;
	delete @suffixes{@user_suffixes};

$output_header .= (".SUFFIXES: "
			   . join (' ', @user_suffixes, sort keys %suffixes)
			   . "\n");
    }

$output_trailer .= file_contents ('footer', new Automake::Location);
}

# Generate 'make install' rules.
sub handle_install ()
{
  $output_rules .= file_contents
    ('install',
     new Automake::Location,
     maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
			     ? (" \$(BUILT_SOURCES)\n"
				. "\t\$(MAKE) \$(AM_MAKEFLAGS)")
			     : ''),
     'installdirs-local' => (user_phony_rule ('installdirs-local')
			     ? ' installdirs-local' : ''),
     am__installdirs => variable_value ('am__installdirs') || '');
}

# handle_all ($MAKEFILE)
#-----------------------
# Deal with 'all' and 'all-am'.
sub handle_all
{
    my ($makefile) = @_;

# Output 'all-am'.

# Put this at the beginning for the sake of non-GNU makes.  This
    # is still wrong if these makes can run parallel jobs.  But it is
    # right enough.
    unshift (@all, basename ($makefile));

foreach my $spec (@config_headers)
      {
	my ($out, @ins) = split_config_file_spec ($spec);
	push (@all, basename ($out))
	  if dirname ($out) eq $relative_dir;
      }

# Install 'all' hooks.
    push (@all, "all-local")
      if user_phony_rule "all-local";

pretty_print_rule ("all-am:", "\t\t", @all);
    depend ('.PHONY', 'all-am', 'all');

# Output 'all'.

my @local_headers = ();
    push @local_headers, '$(BUILT_SOURCES)'
      if var ('BUILT_SOURCES');
    foreach my $spec (@config_headers)
      {
	my ($out, @ins) = split_config_file_spec ($spec);
	push @local_headers, basename ($out)
	  if dirname ($out) eq $relative_dir;
      }

if (@local_headers)
      {
	# We need to make sure config.h is built before we recurse.
	# We also want to make sure that built sources are built
	# before any ordinary 'all' targets are run.  We can't do this
	# by changing the order of dependencies to the "all" because
	# that breaks when using parallel makes.  Instead we handle
	# things explicitly.
	$output_all .= ("all: @local_headers"
			. "\n\t"
			. '$(MAKE) $(AM_MAKEFLAGS) '
			. (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
			. "\n\n");
        depend ('.MAKE', 'all');
      }
    else
      {
	$output_all .= "all: " . (var ('SUBDIRS')
				  ? 'all-recursive' : 'all-am') . "\n\n";
      }
}

# Generate helper targets for user-defined recursive targets, where needed.
sub handle_user_recursion ()
{
  return unless @extra_recursive_targets;

define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
                          map { "$_-recursive" } @extra_recursive_targets);
  my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
  foreach my $target (@extra_recursive_targets)
    {
      # This allows the default target's rules to be overridden in
      # Makefile.am.
      user_phony_rule ($target);
      depend ("$target", "$target-$aux");
      depend ("$target-am", "$target-local");
      # Every user-defined recursive target 'foo' *must* have a valid
      # associated 'foo-local' rule; we define it as an empty rule by
      # default, so that the user can transparently extend it in his
      # own Makefile.am.
      pretty_print_rule ("$target-local:", '', '');
      # $target-recursive might as well be undefined, so do not add
      # it here; it's taken care of in subdirs.am anyway.
      depend (".PHONY", "$target-am", "$target-local");
    }
}

# Handle check merge target specially.
sub do_check_merge_target ()
{
  # Include user-defined local form of target.
  push @check_tests, 'check-local'
    if user_phony_rule 'check-local';

# The check target must depend on the local equivalent of
  # 'all', to ensure all the primary targets are built.  Then it
  # must build the local check rules.
  $output_rules .= "check-am: all-am\n";
  if (@check)
    {
      pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t  ", @check);
      depend ('.MAKE', 'check-am');
    }

if (@check_tests)
    {
      pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t  ",
			 @check_tests);
      depend ('.MAKE', 'check-am');
    }

depend '.PHONY', 'check', 'check-am';
  # Handle recursion.  We have to honor BUILT_SOURCES like for 'all:'.
  $output_rules .= ("check: "
		    . (var ('BUILT_SOURCES')
		       ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
		       : '')
		    . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
		    . "\n");
  depend ('.MAKE', 'check')
    if var ('BUILT_SOURCES');
}

# Handle all 'clean' targets.
sub handle_clean
{
  my ($makefile) = @_;

# Clean the files listed in user variables if they exist.
  $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
    if var ('MOSTLYCLEANFILES');
  $clean_files{'$(CLEANFILES)'} = CLEAN
    if var ('CLEANFILES');
  $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
    if var ('DISTCLEANFILES');
  $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
    if var ('MAINTAINERCLEANFILES');

# Built sources are automatically removed by maintainer-clean.
  $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
    if var ('BUILT_SOURCES');

# Compute a list of "rm"s to run for each target.
  my %rms = (MOSTLY_CLEAN, [],
	     CLEAN, [],
	     DIST_CLEAN, [],
	     MAINTAINER_CLEAN, []);

foreach my $file (sort keys %clean_files)
    {
      my $when = $clean_files{$file};
      prog_error 'invalid entry in %clean_files'
	unless exists $rms{$when};

my $rm = "rm -f $file";
      # If file is a variable, make sure when don't call 'rm -f' without args.
      $rm ="test -z \"$file\" || $rm"
	if ($file =~ /^\s*\$($.*$|\{.*\})\s*$/);

push @{$rms{$when}}, "\t-$rm\n";
    }

$output_rules .= file_contents
    ('clean',
     new Automake::Location,
     MOSTLYCLEAN_RMS      => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
     CLEAN_RMS            => join ('', sort @{$rms{&CLEAN}}),
     DISTCLEAN_RMS        => join ('', sort @{$rms{&DIST_CLEAN}}),
     MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
     MAKEFILE             => basename $makefile,
     );
}

# Subroutine for handle_factored_dependencies() to let '.PHONY' and
# other '.TARGETS' be last.  This is meant to be used as a comparison
# subroutine passed to the sort built-int.
sub target_cmp
{
  return 0 if $a eq $b;

my $a1 = substr ($a, 0, 1);
  my $b1 = substr ($b, 0, 1);
  if ($a1 ne $b1)
    {
      return -1 if $b1 eq '.';
      return 1 if $a1 eq '.';
    }
  return $a cmp $b;
}

# Handle everything related to gathered targets.
sub handle_factored_dependencies ()
{
  # Reject bad hooks.
  foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
		     'uninstall-exec-local', 'uninstall-exec-hook',
		     'uninstall-dvi-local',
		     'uninstall-html-local',
		     'uninstall-info-local',
		     'uninstall-pdf-local',
		     'uninstall-ps-local')
    {
      my $x = $utarg;
      $x =~ s/-.*-/-/;
      reject_rule ($utarg, "use '$x', not '$utarg'");
    }

reject_rule ('install-local',
	       "use 'install-data-local' or 'install-exec-local', "
	       . "not 'install-local'");

reject_rule ('install-hook',
	       "use 'install-data-hook' or 'install-exec-hook', "
	       . "not 'install-hook'");

# Install the -local hooks.
  foreach (sort keys %dependencies)
    {
      # Hooks are installed on the -am targets.
      s/-am$// or next;
      depend ("$_-am", "$_-local")
	if user_phony_rule "$_-local";
    }

# Install the -hook hooks.
  # FIXME: Why not be as liberal as we are with -local hooks?
  foreach ('install-exec', 'install-data', 'uninstall')
    {
      if (user_phony_rule "$_-hook")
	{
	  depend ('.MAKE', "$_-am");
	  register_action("$_-am",
			  ("\t\@\$(NORMAL_INSTALL)\n"
			   . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
	}
    }

# All the required targets are phony.
  depend ('.PHONY', sort keys %required_targets);

# Actually output gathered targets.
  foreach (sort target_cmp keys %dependencies)
    {
      # If there is nothing about this guy, skip it.
      next
	unless (@{$dependencies{$_}}
		|| $actions{$_}
		|| $required_targets{$_});

# Define gathered targets in undefined conditions.
      # FIXME: Right now we must handle .PHONY as an exception,
      # because people write things like
      #    .PHONY: myphonytarget
      # to append dependencies.  This would not work if Automake
      # refrained from defining its own .PHONY target as it does
      # with other overridden targets.
      # Likewise for '.MAKE' and '.PRECIOUS'.
      my @undefined_conds = (TRUE,);
      if ($_ ne '.PHONY' && $_ ne '.MAKE' && $_ ne '.PRECIOUS')
	{
	  @undefined_conds =
	    Automake::Rule::define ($_, 'internal',
				    RULE_AUTOMAKE, TRUE, INTERNAL);
	}
      my @uniq_deps = uniq (sort @{$dependencies{$_}});
      foreach my $cond (@undefined_conds)
	{
	  my $condstr = $cond->subst_string;
	  pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
	  $output_rules .= $actions{$_} if defined $actions{$_};
	  $output_rules .= "\n";
	}
    }
}

sub handle_tests_dejagnu ()
{
    push (@check_tests, 'check-DEJAGNU');
    $output_rules .= file_contents ('dejagnu', new Automake::Location);
}

# handle_per_suffix_test ($TEST_SUFFIX, [%TRANSFORM])
#----------------------------------------------------
sub handle_per_suffix_test
{
  my ($test_suffix, %transform) = @_;
  my ($pfx, $generic, $am_exeext);
  if ($test_suffix eq '')
    {
      $pfx = '';
      $generic = 0;
      $am_exeext = 'FALSE';
    }
  else
    {
      prog_error ("test suffix '$test_suffix' lacks leading dot")
        unless $test_suffix =~ m/^\.(.*)/;
      $pfx = uc ($1) . '_';
      $generic = 1;
      $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
                                                    : 'FALSE';
    }
  # The "test driver" program, deputed to handle tests protocol used by
  # test scripts.  By default, it's assumed that no protocol is used, so
  # we fall back to the old behaviour, implemented by the 'test-driver'
  # auxiliary script.
  if (! var "${pfx}LOG_DRIVER")
    {
      require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
      define_variable ("${pfx}LOG_DRIVER",
                       "\$(SHELL) $am_config_aux_dir/test-driver",
                       INTERNAL);
    }
  my $driver = '$(' . $pfx . 'LOG_DRIVER)';
  my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
                       . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
  my $compile = "${pfx}LOG_COMPILE";
  define_variable ($compile,
                   '$(' . $pfx . 'LOG_COMPILER)'
                      . ' $(AM_' .  $pfx . 'LOG_FLAGS)'
                      . ' $(' . $pfx . 'LOG_FLAGS)',
                     INTERNAL);
  $output_rules .= file_contents ('check2', new Automake::Location,
                                   GENERIC => $generic,
                                   DRIVER => $driver,
                                   DRIVER_FLAGS => $driver_flags,
                                   COMPILE => '$(' . $compile . ')',
                                   EXT => $test_suffix,
                                   am__EXEEXT => $am_exeext,
                                   %transform);
}

# is_valid_test_extension ($EXT)
# ------------------------------
# Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
# otherwise.
sub is_valid_test_extension
{
  my $ext = shift;
  return 1
    if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
  return 1
    if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
  return 0;
}

sub handle_tests ()
{
  if (option 'dejagnu')
    {
      handle_tests_dejagnu;
    }
  else
    {
      foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
	{
	  reject_var ($c, "'$c' defined but 'dejagnu' not in "
		      . "'AUTOMAKE_OPTIONS'");
	}
    }

if (var ('TESTS'))
    {
      push (@check_tests, 'check-TESTS');
      my $check_deps = "@check";
      $output_rules .= file_contents ('check', new Automake::Location,
                                      SERIAL_TESTS => !! option 'serial-tests',
                                      CHECK_DEPS => $check_deps);

# Tests that are known programs should have $(EXEEXT) appended.
      # For matching purposes, we need to adjust XFAIL_TESTS as well.
      append_exeext { exists $known_programs{$_[0]} } 'TESTS';
      append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
	if (var ('XFAIL_TESTS'));

if (! option 'serial-tests')
        {
	  define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
	  my $suff = '.test';
	  my $at_exeext = '';
	  my $handle_exeext = exists $configure_vars{'EXEEXT'};
	  if ($handle_exeext)
	    {
	      $at_exeext = subst ('EXEEXT');
	      $suff = $at_exeext  . ' ' . $suff;
	    }
          if (! var 'TEST_EXTENSIONS')
            {
	      define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
            }
          my $var = var 'TEST_EXTENSIONS';
          # Currently, we are not able to deal with conditional contents
          # in TEST_EXTENSIONS.
          if ($var->has_conditional_contents)
           {
	     msg_var 'unsupported', $var,
                     "'TEST_EXTENSIONS' cannot have conditional contents";
           }
	  my @test_suffixes = $var->value_as_list_recursive;
          if ((my @invalid_test_suffixes =
                  grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
            {
              error $var->rdef (TRUE)->location,
                    "invalid test extensions: @invalid_test_suffixes";
            }
          @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
	  if ($handle_exeext)
	    {
	      unshift (@test_suffixes, $at_exeext)
	        unless @test_suffixes && $test_suffixes[0] eq $at_exeext;
	    }
	  unshift (@test_suffixes, '');

transform_variable_recursively
	    ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
	      sub {
	        my ($subvar, $val, $cond, $full_cond) = @_;
		my $obj = $val;
		return $obj
		  if $val =~ /^\@.*\@$/;
		$obj =~ s/\$$EXEEXT$$//o;

if ($val =~ /(\$$(top_)?srcdir$)\//o)
		  {
		    msg ('error', $subvar->rdef ($cond)->location,
			 "using '$1' in TESTS is currently broken: '$val'");
		  }

foreach my $test_suffix (@test_suffixes)
		  {
		    next
		      if $test_suffix eq $at_exeext || $test_suffix eq '';
		    return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
		      if substr ($obj, - length ($test_suffix)) eq $test_suffix;
		  }
		my $base = $obj;
		$obj .= '.log';
                handle_per_suffix_test ('',
                                        OBJ => $obj,
                                        BASE => $base,
                                        SOURCE => $val);
	        return $obj;
	      });

my $nhelper=1;
	  my $prev = 'TESTS';
	  my $post = '';
	  my $last_suffix = $test_suffixes[$#test_suffixes];
	  my $cur = '';
	  foreach my $test_suffix (@test_suffixes)
	    {
	      if ($test_suffix eq $last_suffix)
	        {
		  $cur = 'TEST_LOGS';
		}
	      else
	        {
		  $cur = 'am__test_logs' . $nhelper;
		}
	      define_variable ($cur,
		'$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
	      $post = '.log';
	      $prev = $cur;
	      $nhelper++;
	      if ($test_suffix ne $at_exeext && $test_suffix ne '')
	        {
                  handle_per_suffix_test ($test_suffix,
                                          OBJ => '',
                                          BASE => '$*',
                                          SOURCE => '$<');
	        }
	    }
	  $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
	  $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
	  $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
	}
    }
}

sub handle_emacs_lisp ()
{
  my @elfiles = am_install_var ('-candist', 'lisp', 'LISP',
                                'lisp', 'noinst');

return if ! @elfiles;

define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
			  map { $_->[1] } @elfiles);
  define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
			  '$(am__ELFILES:.el=.elc)');
  # This one can be overridden by users.
  define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');

push @all, '$(ELCFILES)';

require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
		     'EMACS', 'lispdir');
}

sub handle_python ()
{
  my @pyfiles = am_install_var ('-defaultdist', 'python', 'PYTHON',
                                'noinst');
  return if ! @pyfiles;

require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
  require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
  define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
}

sub handle_java ()
{
    my @sourcelist = am_install_var ('-candist',
                                     'java', 'JAVA',
                                     'noinst', 'check');
    return if ! @sourcelist;

my @prefixes = am_primary_prefixes ('JAVA', 1,
				        'noinst', 'check');

my $dir;
    my @java_sources = ();
    foreach my $prefix (@prefixes)
      {
        (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;

next
	  if $curs eq 'EXTRA';

push @java_sources, '$(' . $prefix . '_JAVA' . ')';

if (defined $dir)
	  {
	    err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
	     unless $curs eq $dir;
	  }

$dir = $curs;
      }

define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
                            "@java_sources");

if ($dir eq 'check')
      {
        push (@check, "class$dir.stamp");
      }
    else
      {
        push (@all, "class$dir.stamp");
      }
}

sub handle_minor_options ()
{
  if (option 'readme-alpha')
    {
      if ($relative_dir eq '.')
	{
	  if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
	    {
	      msg ('error-gnits', $package_version_location,
		   "version '$package_version' doesn't follow " .
		   "Gnits standards");
	    }
	  if (defined $1 && (-f 'README-alpha' || -f 'README-alpha.md'))
	    {
	      # This means we have an alpha release.  See
	      # GNITS_VERSION_PATTERN for details.
	      my $af = -f 'README-alpha' ? 'README-alpha' : 'README-alpha.md';
	      push_dist_common ($af);
	    }
	}
    }
}

################################################################

# ($OUTPUT, @INPUTS)
# split_config_file_spec ($SPEC)
# ------------------------------
# Decode the Autoconf syntax for config files (files, headers, links
# etc.).
sub split_config_file_spec
{
  my ($spec) = @_;
  my ($output, @inputs) = split (/:/, $spec);

push @inputs, "$output.in"
    unless @inputs;

return ($output, @inputs);
}

# $input
# locate_am (@POSSIBLE_SOURCES)
# -----------------------------
# AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
# This functions returns the first *.in file for which a *.am exists.
# It returns undef otherwise.
sub locate_am
{
  my (@rest) = @_;
  my $input;
  foreach my $file (@rest)
    {
      if (($file =~ /^(.*)\.in$/) && -f "$1.am")
	{
	  $input = $file;
	  last;
	}
    }
  return $input;
}

my %make_list;

# scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
# --------------------------------------------------
# Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
# (or AC_OUTPUT).
sub scan_autoconf_config_files
{
  my ($where, $config_files) = @_;

# Look at potential Makefile.am's.
  foreach (split ' ', $config_files)
    {
      # Must skip empty string for Perl 4.
      next if $_ eq "\\" || $_ eq '';

# Handle $local:$input syntax.
      my ($local, @rest) = split (/:/);
      @rest = ("$local.in",) unless @rest;
      # Keep in sync with test 'conffile-leading-dot.sh'.
      msg ('unsupported', $where,
           "omit leading './' from config file names such as '$local';"
           . "\nremake rules might be subtly broken otherwise")
        if ($local =~ /^\.\//);
      my $input = locate_am @rest;
      if ($input)
	{
	  # We have a file that automake should generate.
	  $make_list{$input} = join (':', ($local, @rest));
	}
      else
	{
	  # We have a file that automake should cause to be
	  # rebuilt, but shouldn't generate itself.
	  push (@other_input_files, $_);
	}
      $ac_config_files_location{$local} = $where;
      $ac_config_files_condition{$local} =
        new Automake::Condition (@cond_stack)
          if (@cond_stack);
    }
}

sub scan_autoconf_traces
{
  my ($filename) = @_;

# Macros to trace, with their minimal number of arguments.
  #
  # IMPORTANT: If you add a macro here, you should also add this macro
  # =========  to Automake-preselection in autoconf/lib/autom4te.in.
  my %traced = (
		AC_CANONICAL_BUILD => 0,
		AC_CANONICAL_HOST => 0,
		AC_CANONICAL_TARGET => 0,
		AC_CONFIG_AUX_DIR => 1,
		AC_CONFIG_FILES => 1,
		AC_CONFIG_HEADERS => 1,
		AC_CONFIG_LIBOBJ_DIR => 1,
		AC_CONFIG_LINKS => 1,
		AC_FC_SRCEXT => 1,
		AC_INIT => 0,
		AC_LIBSOURCE => 1,
		AC_REQUIRE_AUX_FILE => 1,
		AC_SUBST_TRACE => 1,
		AM_AUTOMAKE_VERSION => 1,
                AM_PROG_MKDIR_P => 0,
		AM_CONDITIONAL => 2,
		AM_EXTRA_RECURSIVE_TARGETS => 1,
		AM_GNU_GETTEXT => 0,
		AM_GNU_GETTEXT_INTL_SUBDIR => 0,
		AM_INIT_AUTOMAKE => 0,
		AM_MAINTAINER_MODE => 0,
		AM_PROG_AR => 0,
		_AM_SUBST_NOTMAKE => 1,
		_AM_COND_IF => 1,
		_AM_COND_ELSE => 1,
		_AM_COND_ENDIF => 1,
		LT_SUPPORTED_TAG => 1,
		_LT_AC_TAGCONFIG => 0,
		m4_include => 1,
		m4_sinclude => 1,
		sinclude => 1,
	      );

# Suppress all warnings from this invocation of autoconf.
  # The user is presumably about to run autoconf themselves
  # and will see its warnings then.
  local $ENV{WARNINGS} = 'none';

my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";

# Use a separator unlikely to be used, not ':', the default, which
  # has a precise meaning for AC_CONFIG_FILES and so on.
  $traces .= join (' ',
		   map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
		   (sort keys %traced));

verb "running WARNINGS=$ENV{WARNINGS} $traces";
  my $tracefh = new Automake::XFile ("$traces $filename |");

@cond_stack = ();
  my $where;

while ($_ = $tracefh->getline)
    {
      chomp;
      my ($here, $depth, @args) = split (/::/);
      $where = new Automake::Location $here;
      my $macro = $args[0];

prog_error ("unrequested trace '$macro'")
	unless exists $traced{$macro};

# Skip and diagnose malformed calls.
      if ($#args < $traced{$macro})
	{
	  msg ('syntax', $where, "not enough arguments for $macro");
	  next;
	}

# Alphabetical ordering please.
      if ($macro eq 'AC_CANONICAL_BUILD')
	{
	  if ($seen_canonical <= AC_CANONICAL_BUILD)
	    {
	      $seen_canonical = AC_CANONICAL_BUILD;
	    }
	}
      elsif ($macro eq 'AC_CANONICAL_HOST')
	{
	  if ($seen_canonical <= AC_CANONICAL_HOST)
	    {
	      $seen_canonical = AC_CANONICAL_HOST;
	    }
	}
      elsif ($macro eq 'AC_CANONICAL_TARGET')
	{
	  $seen_canonical = AC_CANONICAL_TARGET;
	}
      elsif ($macro eq 'AC_CONFIG_AUX_DIR')
	{
	  if ($seen_init_automake)
	    {
	      error ($where, "AC_CONFIG_AUX_DIR must be called before "
		     . "AM_INIT_AUTOMAKE ...", partial => 1);
	      error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
	    }
	  $config_aux_dir = $args[1];
	  $config_aux_dir_set_in_configure_ac = 1;
	  check_directory ($config_aux_dir, $where);
	}
      elsif ($macro eq 'AC_CONFIG_FILES')
	{
	  # Look at potential Makefile.am's.
	  scan_autoconf_config_files ($where, $args[1]);
	}
      elsif ($macro eq 'AC_CONFIG_HEADERS')
	{
	  foreach my $spec (split (' ', $args[1]))
	    {
	      my ($dest, @src) = split (':', $spec);
	      $ac_config_files_location{$dest} = $where;
	      push @config_headers, $spec;
	    }
	}
      elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
	{
	  $config_libobj_dir = $args[1];
	  check_directory ($config_libobj_dir, $where);
	}
      elsif ($macro eq 'AC_CONFIG_LINKS')
	{
	  foreach my $spec (split (' ', $args[1]))
	    {
	      my ($dest, $src) = split (':', $spec);
	      $ac_config_files_location{$dest} = $where;
	      push @config_links, $spec;
	    }
	}
      elsif ($macro eq 'AC_FC_SRCEXT')
	{
	  my $suffix = $args[1];
	  # These flags are used as %SOURCEFLAG% in depend2.am,
	  # where the trailing space is important.
	  $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
	    if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
	}
      elsif ($macro eq 'AC_INIT')
	{
	  if (defined $args[2])
	    {
	      $package_version = $args[2];
	      $package_version_location = $where;
	    }
	}
      elsif ($macro eq 'AC_LIBSOURCE')
	{
	  $libsources{$args[1]} = $here;
	}
      elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
	{
	  # Only remember the first time a file is required.
	  $required_aux_file{$args[1]} = $where
	    unless exists $required_aux_file{$args[1]};
	}
      elsif ($macro eq 'AC_SUBST_TRACE')
	{
	  # Just check for alphanumeric in AC_SUBST_TRACE.  If you do
	  # AC_SUBST(5), then too bad.
	  $configure_vars{$args[1]} = $where
	    if $args[1] =~ /^\w+$/;
	}
      elsif ($macro eq 'AM_AUTOMAKE_VERSION')
	{
	  error ($where,
		 "version mismatch.  This is Automake $VERSION,\n" .
		 "but the definition used by this AM_INIT_AUTOMAKE\n" .
		 "comes from Automake $args[1].  You should recreate\n" .
		 "aclocal.m4 with aclocal and run automake again.\n",
		 # $? = 63 is used to indicate version mismatch to missing.
		 exit_code => 63)
	    if $VERSION ne $args[1];

$seen_automake_version = 1;
	}
      elsif ($macro eq 'AM_PROG_MKDIR_P')
	{
	  msg 'obsolete', $where, <<'EOF';
The 'AM_PROG_MKDIR_P' macro is deprecated, and its use is discouraged.
You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
EOF
	}
      elsif ($macro eq 'AM_CONDITIONAL')
	{
	  $configure_cond{$args[1]} = $where;
	}
      elsif ($macro eq 'AM_EXTRA_RECURSIVE_TARGETS')
	{
          # Empty leading/trailing fields might be produced by split,
          # hence the grep is really needed.
          push @extra_recursive_targets,
               grep (/./, (split /\s+/, $args[1]));
	}
      elsif ($macro eq 'AM_GNU_GETTEXT')
	{
	  $seen_gettext = $where;
	  $ac_gettext_location = $where;
	  $seen_gettext_external = grep ($_ eq 'external', @args);
	}
      elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
	{
	  $seen_gettext_intl = $where;
	}
      elsif ($macro eq 'AM_INIT_AUTOMAKE')
	{
	  $seen_init_automake = $where;
	  if (defined $args[2])
	    {
              msg 'obsolete', $where, <<'EOF';
AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated.  For more info, see:
https://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
EOF
	      $package_version = $args[2];
	      $package_version_location = $where;
	    }
	  elsif (defined $args[1])
	    {
	      my @opts = split (' ', $args[1]);
	      @opts = map { { option => $_, where => $where } } @opts;
	      exit $exit_code unless process_global_option_list (@opts);
	    }
	}
      elsif ($macro eq 'AM_MAINTAINER_MODE')
	{
	  $seen_maint_mode = $where;
	}
      elsif ($macro eq 'AM_PROG_AR')
	{
	  $seen_ar = $where;
	}
      elsif ($macro eq '_AM_COND_IF')
        {
	  cond_stack_if ('', $args[1], $where);
	  error ($where, "missing m4 quoting, macro depth $depth")
	    if ($depth != 1);
	}
      elsif ($macro eq '_AM_COND_ELSE')
        {
	  cond_stack_else ('!', $args[1], $where);
	  error ($where, "missing m4 quoting, macro depth $depth")
	    if ($depth != 1);
	}
      elsif ($macro eq '_AM_COND_ENDIF')
        {
	  cond_stack_endif (undef, undef, $where);
	  error ($where, "missing m4 quoting, macro depth $depth")
	    if ($depth != 1);
	}
      elsif ($macro eq '_AM_SUBST_NOTMAKE')
	{
	  $ignored_configure_vars{$args[1]} = $where;
	}
      elsif ($macro eq 'm4_include'
	     || $macro eq 'm4_sinclude'
	     || $macro eq 'sinclude')
	{
	  # Skip missing 'sinclude'd files.
	  next if $macro ne 'm4_include' && ! -f $args[1];

# Some modified versions of Autoconf don't use
	  # frozen files.  Consequently it's possible that we see all
	  # m4_include's performed during Autoconf's startup.
	  # Obviously we don't want to distribute Autoconf's files
	  # so we skip absolute filenames here.
	  push @configure_deps, '$(top_srcdir)/' . $args[1]
	    unless $here =~ m,^(?:\w:)?[\\/],;
	  # Keep track of the greatest timestamp.
	  if (-e $args[1])
	    {
	      my $mtime = mtime $args[1];
	      $configure_deps_greatest_timestamp = $mtime
		if $mtime > $configure_deps_greatest_timestamp;
	    }
	}
      elsif ($macro eq 'LT_SUPPORTED_TAG')
	{
	  $libtool_tags{$args[1]} = 1;
	  $libtool_new_api = 1;
	}
      elsif ($macro eq '_LT_AC_TAGCONFIG')
	{
	  # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
	  # We use it to detect whether tags are supported.  Our
	  # preferred interface is LT_SUPPORTED_TAG, but it was
	  # introduced in Libtool 1.6.
	  if (0 == keys %libtool_tags)
	    {
	      # Hardcode the tags supported by Libtool 1.5.
	      %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
	    }
	}
    }

error ($where, "condition stack not properly closed")
    if (@cond_stack);

$tracefh->close;
}

# Check whether we use 'configure.ac' or 'configure.in'.
# Scan it (and possibly 'aclocal.m4') for interesting things.
# We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
sub scan_autoconf_files ()
{
  # Reinitialize libsources here.  This isn't really necessary,
  # since we currently assume there is only one configure.ac.  But
  # that won't always be the case.
  %libsources = ();

# Keep track of the youngest configure dependency.
  $configure_deps_greatest_timestamp = mtime $configure_ac;
  if (-e 'aclocal.m4')
    {
      my $mtime = mtime 'aclocal.m4';
      $configure_deps_greatest_timestamp = $mtime
	if $mtime > $configure_deps_greatest_timestamp;
    }

scan_autoconf_traces ($configure_ac);

@configure_input_files = sort keys %make_list;
  # Set input and output files if not specified by user.
  if (! @input_files)
    {
      @input_files = @configure_input_files;
      %output_files = %make_list;
    }

if (! $seen_init_automake)
    {
      err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
	      . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
	      . "\nthat aclocal.m4 is present in the top-level directory,\n"
	      . "and that aclocal.m4 was recently regenerated "
	      . "(using aclocal)");
    }
  else
    {
      if (! $seen_automake_version)
	{
	  if (-f 'aclocal.m4')
	    {
	      error ($seen_init_automake,
		     "your implementation of AM_INIT_AUTOMAKE comes from " .
		     "an\nold Automake version.  You should recreate " .
		     "aclocal.m4\nwith aclocal and run automake again",
		     # $? = 63 is used to indicate version mismatch to missing.
		     exit_code => 63);
	    }
	  else
	    {
	      error ($seen_init_automake,
		     "no proper implementation of AM_INIT_AUTOMAKE was " .
		     "found,\nprobably because aclocal.m4 is missing.\n" .
		     "You should run aclocal to create this file, then\n" .
		     "run automake again");
	    }
	}
    }

locate_aux_dir ();

# Look for some files we need.  Always check for these.  This
  # check must be done for every run, even those where we are only
  # looking at a subdir Makefile.  We must set relative_dir for
  # push_required_file to work.
  # Sort the files for stable verbose output.
  $relative_dir = '.';
  foreach my $file (sort keys %required_aux_file)
    {
      require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
    }
  err_am "'install.sh' is an anachronism; use 'install-sh' instead"
    if -f $config_aux_dir . '/install.sh';

# Preserve dist_common for later.
  @configure_dist_common = @dist_common;
}

################################################################

# Do any extra checking for GNU standards.
sub check_gnu_standards ()
{
  if ($relative_dir eq '.')
    {
      # In top level (or only) directory.

foreach my $file (@toplevelmd_ok)
        {
          next if $file eq 'THANKS'; # gnits, checked below
          # if non-.md is absent, and .md is present, require .md;
          # otherwise require non-.md.
          my $required
           = (! -f $file && -f "$file.md") ? "$file.md" : $file;
          require_file ("$am_file.am", GNU, $required);
        }

# Accept one of these three licenses; default to COPYING.
      # Make sure we do not overwrite an existing license.
      my $license;
      foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
	{
	  if (-f $_)
	    {
	      $license = $_;
	      last;
	    }
	}
      require_file ("$am_file.am", GNU, 'COPYING')
	unless $license;
    }

for my $opt ('no-installman', 'no-installinfo')
    {
      msg ('error-gnu', option $opt,
	   "option '$opt' disallowed by GNU standards")
	if option $opt;
    }
}

# Do any extra checking for GNITS standards.
sub check_gnits_standards ()
{
  if ($relative_dir eq '.')
    {
      # In top level (or only) directory.
      my $file = 'THANKS';
      my $required
       = (! -f $file && -f "$file.md") ? "$file.md" : $file;
      require_file ("$am_file.am", GNITS, $file);
    }
}

################################################################
#
# Functions to handle files of each language.

# Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
# simple formula: Return value is LANG_SUBDIR if the resulting object
# file should be in a subdir if the source file is, LANG_PROCESS if
# file is to be dealt with, LANG_IGNORE otherwise.

# Much of the actual processing is handled in
# handle_single_transform.  These functions exist so that
# auxiliary information can be recorded for a later cleanup pass.
# Note that the calls to these functions are computed, so don't bother
# searching for their precise names in the source.

# This is just a convenience function that can be used to determine
# when a subdir object should be used.
sub lang_sub_obj ()
{
    return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
}

# Rewrite a single header file.
sub lang_header_rewrite
{
    # Header files are simply ignored.
    return LANG_IGNORE;
}

# Rewrite a single Vala source file.
sub lang_vala_rewrite
{
    my ($directory, $base, $ext) = @_;

(my $newext = $ext) =~ s/vala$/c/;
    return (LANG_SUBDIR, $newext);
}

# Rewrite a single yacc/yacc++ file.
sub lang_yacc_rewrite
{
    my ($directory, $base, $ext) = @_;

my $r = lang_sub_obj;
    (my $newext = $ext) =~ tr/y/c/;
    return ($r, $newext);
}
sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };

# Rewrite a single lex/lex++ file.
sub lang_lex_rewrite
{
    my ($directory, $base, $ext) = @_;

my $r = lang_sub_obj;
    (my $newext = $ext) =~ tr/l/c/;
    return ($r, $newext);
}
sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };

# Rewrite a single Java file.
sub lang_java_rewrite
{
    return LANG_SUBDIR;
}

# The lang_X_finish functions are called after all source file
# processing is done.  Each should handle defining rules for the
# language, etc.  A finish function is only called if a source file of
# the appropriate type has been seen.

sub lang_vala_finish_target
{
  my ($self, $name) = @_;

my $derived = canonicalize ($name);
  my $var = var "${derived}_SOURCES";
  return unless $var;

my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);

# For automake bug#11229.
  return unless @vala_sources;

foreach my $vala_file (@vala_sources)
    {
      my $c_file = $vala_file;
      if ($c_file =~ s/(.*)\.vala$/$1.c/)
        {
          my $built_c_file = "\$(builddir)/$c_file";
          my $built_dir = dirname $built_c_file;
          my $base_c_file = basename $c_file;
          #
          # The -newer test here is checking "C file not older than Vala
          # file" (not "C file newer than Vala file"; see
          # https://bugs.gnu.org/44772. The log message on the commit
          # misleadingly says "reversed".
          #
          $output_rules .= "$built_c_file: \$(builddir)/${derived}_vala.stamp\n"
            . "\t\@if test ! -f \$@ && test \$(srcdir) != \$(builddir) && test -n \"\$\$(find -L \$(srcdir)/$vala_file -prune \! -newer \$(srcdir)/$c_file)\"; then cp -p \$(srcdir)/$c_file $built_c_file; fi\n"
            . "\t\@if test -f \$@; then :; else rm -f \$(builddir)/${derived}_vala.stamp; fi\n"
            . "\t\@if test -f \$@; then :; else \\\n"
            . "\t  \$(MAKE) \$(AM_MAKEFLAGS) \$(builddir)/${derived}_vala.stamp; \\\n"
            . "\t  if test $built_dir != .; then mv $base_c_file $built_dir/; fi \\\n"
            . "\tfi\n";
	  $clean_files{$built_c_file} = DIST_CLEAN;
	  $clean_files{"\$(srcdir)/$c_file"} = MAINTAINER_CLEAN;
        }
    }

# Add rebuild rules for generated header and vapi files
  my $flags = var ($derived . '_VALAFLAGS');
  if ($flags)
    {
      my $lastflag = '';
      foreach my $flag ($flags->value_as_list_recursive)
	{
	  if (grep (/^$lastflag$/, ('-H', '-h', '--header', '--internal-header',
	                            '--vapi', '--internal-vapi', '--gir')))
	    {
	      my $headerfile = "\$(builddir)/$flag";
	      $output_rules .= "$headerfile: \$(builddir)/${derived}_vala.stamp\n"
		. "\t\@if test -f \$@; then :; else rm -f \$(builddir)/${derived}_vala.stamp; fi\n"
		. "\t\@if test -f \$@; then :; else \\\n"
		. "\t  \$(MAKE) \$(AM_MAKEFLAGS) \$(builddir)/${derived}_vala.stamp; \\\n"
		. "\tfi\n";

# valac is not used when building from dist tarballs
	      # distribute the generated files
	      push_dist_common ($headerfile);
	      $clean_files{$headerfile} = MAINTAINER_CLEAN;
	    }
	  if (grep (/$lastflag/, ('--library')))
	    {
	      my $headerfile = "\$(builddir)/$flag";
	      $output_rules .= "$headerfile.vapi: \$(builddir)/${derived}_vala.stamp\n"
		. "\t\@if test -f \$@; then :; else rm -f \$(builddir)/${derived}_vala.stamp; fi\n"
		. "\t\@if test -f \$@; then :; else \\\n"
		. "\t  \$(MAKE) \$(AM_MAKEFLAGS) \$(builddir)/${derived}_vala.stamp; \\\n"
		. "\tfi\n";

# valac is not used when building from dist tarballs
	      # distribute the generated files
	      my $vapi = "$headerfile.vapi";
	      push_dist_common ($vapi);
	      $clean_files{$headerfile.'.vapi'} = MAINTAINER_CLEAN;
	    }
	  $lastflag = $flag;
	}
    }

my $compile = $self->compile;

# Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
  # rule into '${derived}_VALAFLAGS' if it exists.
  my $val = "${derived}_VALAFLAGS";
  $compile =~ s/$AM_VALAFLAGS$/$$val$/
    if set_seen ($val);

# VALAFLAGS is a user variable (per GNU Standards),
  # it should not be overridden in the Makefile...
  check_user_variables 'VALAFLAGS';

my $dirname = dirname ($name);

# Only generate C code, do not run C compiler
  $compile .= " -C";

my $verbose = verbose_flag ('VALAC');
  my $silent = silent_flag ();
  my $stampfile = "\$(builddir)/${derived}_vala.stamp";

$output_rules .=
    "\$(builddir)/${derived}_vala.stamp: @vala_sources\n".
# Since the C files generated from the vala sources depend on the
# ${derived}_vala.stamp file, we must ensure its timestamp is older than
# those of the C files generated by the valac invocation below (this is
# especially important on systems with sub-second timestamp resolution).
# Thus we need to create the stamp file *before* invoking valac, and to
# move it to its final location only after valac has been invoked.
    "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
    "\t${verbose}$compile \$^\n".
    "\t${silent}mv -f \$\@-t \$\@\n";

push_dist_common ($stampfile);

$clean_files{$stampfile} = MAINTAINER_CLEAN;
}

# Add output rules to invoke valac and create stamp file as a witness
# to handle multiple outputs. This function is called after all source
# file processing is done.
sub lang_vala_finish ()
{
  my ($self) = @_;

foreach my $prog (sort keys %known_programs)
    {
      lang_vala_finish_target ($self, $prog);
    }

while (my ($name) = each %known_libraries)
    {
      lang_vala_finish_target ($self, $name);
    }
}

# The built .c files should be cleaned only on maintainer-clean
# as the .c files are distributed. This function is called for each
# .vala source file.
sub lang_vala_target_hook
{
  my ($self, $aggregate, $output, $input, %transform) = @_;

$clean_files{$output} = MAINTAINER_CLEAN;
}

# This is a yacc helper which is called whenever we have decided to
# compile a yacc file.
sub lang_yacc_target_hook
{
    my ($self, $aggregate, $output, $input, %transform) = @_;

# If some relevant *YFLAGS variable contains the '-d' flag, we'll
    # have to to generate special code.
    my $yflags_contains_minus_d = 0;

foreach my $pfx ("", "${aggregate}_")
      {
	my $yflagsvar = var ("${pfx}YFLAGS");
	next unless $yflagsvar;
	# We cannot work reliably with conditionally-defined YFLAGS.
	if ($yflagsvar->has_conditional_contents)
	  {
	    msg_var ('unsupported', $yflagsvar,
	             "'${pfx}YFLAGS' cannot have conditional contents");
	  }
	else
	  {
	    $yflags_contains_minus_d = 1
	      if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
	  }
      }

if ($yflags_contains_minus_d)
      {
	# Found a '-d' that applies to the compilation of this file.
	# Add a dependency for the generated header file, and arrange
	# for that file to be included in the distribution.

# The extension of the output file (e.g., '.c' or '.cxx').
	# We'll need it to compute the name of the generated header file.
	(my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;

# We know that a yacc input should be turned into either a C or
	# C++ output file.  We depend on this fact (here and in yacc.am),
	# so check that it really holds.
	my $lang = $languages{$extension_map{$output_ext}};
	prog_error "invalid output name '$output' for yacc file '$input'"
	  if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));

(my $header_ext = $output_ext) =~ s/c/h/g;
        # Quote $output_ext in the regexp, so that dots in it are taken
        # as literal dots, not as metacharacters.
	(my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;

foreach my $cond (Automake::Rule::define (${header}, 'internal',
						  RULE_AUTOMAKE, TRUE,
						  INTERNAL))
	  {
	    my $condstr = $cond->subst_string;
	    $output_rules .=
	      "$condstr${header}: $output\n"
	      # Recover from removal of $header
	      . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
	      . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
	  }
	# Distribute the generated file, unless its .y source was
	# listed in a nodist_ variable.  (handle_source_transform()
	# will set DIST_SOURCE.)
	push_dist_common ($header)
	  if $transform{'DIST_SOURCE'};

# The GNU rules say that yacc/lex output files should be removed
	# by maintainer-clean.  However, if the files are not distributed,
	# then we want to remove them with "make clean"; otherwise,
	# "make distcheck" will fail.
	$clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
      }
    # See the comment above for $HEADER.
    $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
}

# This is a lex helper which is called whenever we have decided to
# compile a lex file.
sub lang_lex_target_hook
{
    my ($self, $aggregate, $output, $input, %transform) = @_;
    # The GNU rules say that yacc/lex output files should be removed
    # by maintainer-clean.  However, if the files are not distributed,
    # then we want to remove them with "make clean"; otherwise,
    # "make distcheck" will fail.
    $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
}

# This is a helper for both lex and yacc.
sub yacc_lex_finish_helper ()
{
  return if defined $language_scratch{'lex-yacc-done'};
  $language_scratch{'lex-yacc-done'} = 1;

# FIXME: for now, no line number.
  require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
  define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
}

sub lang_yacc_finish ()
{
  return if defined $language_scratch{'yacc-done'};
  $language_scratch{'yacc-done'} = 1;

reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";

yacc_lex_finish_helper;
}

sub lang_lex_finish ()
{
  return if defined $language_scratch{'lex-done'};
  $language_scratch{'lex-done'} = 1;

yacc_lex_finish_helper;
}

# Given a hash table of linker names, pick the name that has the most
# precedence.  This is lame, but something has to have global
# knowledge in order to eliminate the conflict.  Add more linkers as
# required.
sub resolve_linker
{
    my (%linkers) = @_;

foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
    {
	return $l if defined $linkers{$l};
    }
    return 'LINK';
}

# Called to indicate that an extension was used.
sub saw_extension
{
    my ($ext) = @_;
    $extension_seen{$ext} = 1;
}

# register_language (%ATTRIBUTE)
# ------------------------------
# Register a single language.
# Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
sub register_language
{
  my (%option) = @_;

# Set the defaults.
  $option{'autodep'} = 'no'
    unless defined $option{'autodep'};
  $option{'linker'} = ''
    unless defined $option{'linker'};
  $option{'flags'} = []
    unless defined $option{'flags'};
  $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
    unless defined $option{'output_extensions'};
  $option{'nodist_specific'} = 0
    unless defined $option{'nodist_specific'};

my $lang = new Automake::Language (%option);

# Fill indexes.
  $extension_map{$_} = $lang->name foreach @{$lang->extensions};
  $languages{$lang->name} = $lang;
  my $link = $lang->linker;
  if ($link)
    {
      if (exists $link_languages{$link})
	{
	  prog_error ("'$link' has different definitions in "
		      . $lang->name . " and " . $link_languages{$link}->name)
	    if $lang->link ne $link_languages{$link}->link;
	}
      else
	{
	  $link_languages{$link} = $lang;
	}
    }

# Update the pattern of known extensions.
  accept_extensions (@{$lang->extensions});

# Update the suffix rules map.
  foreach my $suffix (@{$lang->extensions})
    {
      foreach my $dest ($lang->output_extensions->($suffix))
	{
	  register_suffix_rule (INTERNAL, $suffix, $dest);
	}
    }
}

# derive_suffix ($EXT, $OBJ)
# --------------------------
# This function is used to find a path from a user-specified suffix $EXT
# to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
sub derive_suffix
{
  my ($source_ext, $obj) = @_;

while (!$extension_map{$source_ext} && $source_ext ne $obj)
    {
      my $new_source_ext = next_in_suffix_chain ($source_ext, $obj);
      last if not defined $new_source_ext;
      $source_ext = $new_source_ext;
    }

return $source_ext;
}

# Pretty-print something and append to '$output_rules'.
sub pretty_print_rule
{
    $output_rules .= makefile_wrap (shift, shift, @_);
}

################################################################

## -------------------------------- ##
## Handling the conditional stack.  ##
## -------------------------------- ##

# $STRING
# make_conditional_string ($NEGATE, $COND)
# ----------------------------------------
sub make_conditional_string
{
  my ($negate, $cond) = @_;
  $cond = "${cond}_TRUE"
    unless $cond =~ /^TRUE|FALSE$/;
  $cond = Automake::Condition::conditional_negate ($cond)
    if $negate;
  return $cond;
}

my %_am_macro_for_cond =
  (
  AMDEP => "one of the compiler tests\n"
	   . "    AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
	   . "    AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
  am__fastdepCC => 'AC_PROG_CC',
  am__fastdepCCAS => 'AM_PROG_AS',
  am__fastdepCXX => 'AC_PROG_CXX',
  am__fastdepGCJ => 'AM_PROG_GCJ',
  am__fastdepOBJC => 'AC_PROG_OBJC',
  am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
  am__fastdepUPC => 'AM_PROG_UPC'
  );

# $COND
# cond_stack_if ($NEGATE, $COND, $WHERE)
# --------------------------------------
sub cond_stack_if
{
  my ($negate, $cond, $where) = @_;

if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
    {
      my $text = "$cond does not appear in AM_CONDITIONAL";
      my $scope = US_LOCAL;
      if (exists $_am_macro_for_cond{$cond})
	{
	  my $mac = $_am_macro_for_cond{$cond};
	  $text .= "\n  The usual way to define '$cond' is to add ";
	  $text .= ($mac =~ / /) ? $mac : "'$mac'";
	  $text .= "\n  to '$configure_ac' and run 'aclocal' and 'autoconf' again";
	  # These warnings appear in Automake files (depend2.am),
	  # so there is no need to display them more than once:
	  $scope = US_GLOBAL;
	}
      error $where, $text, uniq_scope => $scope;
    }

push (@cond_stack, make_conditional_string ($negate, $cond));

return new Automake::Condition (@cond_stack);
}

# $COND
# cond_stack_else ($NEGATE, $COND, $WHERE)
# ----------------------------------------
sub cond_stack_else
{
  my ($negate, $cond, $where) = @_;

if (! @cond_stack)
    {
      error $where, "else without if";
      return FALSE;
    }

$cond_stack[$#cond_stack] =
    Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);

# If $COND is given, check against it.
  if (defined $cond)
    {
      $cond = make_conditional_string ($negate, $cond);

error ($where, "else reminder ($negate$cond) incompatible with "
	     . "current conditional: $cond_stack[$#cond_stack]")
	if $cond_stack[$#cond_stack] ne $cond;
    }

return new Automake::Condition (@cond_stack);
}

# $COND
# cond_stack_endif ($NEGATE, $COND, $WHERE)
# -----------------------------------------
sub cond_stack_endif
{
  my ($negate, $cond, $where) = @_;
  my $old_cond;

if (! @cond_stack)
    {
      error $where, "endif without if";
      return TRUE;
    }

# If $COND is given, check against it.
  if (defined $cond)
    {
      $cond = make_conditional_string ($negate, $cond);

error ($where, "endif reminder ($negate$cond) incompatible with "
	     . "current conditional: $cond_stack[$#cond_stack]")
	if $cond_stack[$#cond_stack] ne $cond;
    }

pop @cond_stack;

return new Automake::Condition (@cond_stack);
}

## ------------------------ ##
## Handling the variables.  ##
## ------------------------ ##

# define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
# ----------------------------------------------------
# Like define_variable, but the value is a list, and the variable may
# be defined conditionally.  The second argument is the condition
# under which the value should be defined; this should be the empty
# string to define the variable unconditionally.  The third argument
# is a list holding the values to use for the variable.  The value is
# pretty printed in the output file.
sub define_pretty_variable
{
    my ($var, $cond, $where, @value) = @_;

if (! vardef ($var, $cond))
    {
	Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
				    '', $where, VAR_PRETTY);
	rvar ($var)->rdef ($cond)->set_seen;
    }
}

# define_variable ($VAR, $VALUE, $WHERE)
# --------------------------------------
# Define a new Automake Makefile variable VAR to VALUE, but only if
# not already defined.
sub define_variable
{
    my ($var, $value, $where) = @_;
    define_pretty_variable ($var, TRUE, $where, $value);
}

# define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
# ------------------------------------------------------------
# Define the $VAR which content is the list of file names composed of
# a @BASENAME and the $EXTENSION.
sub define_files_variable ($\@$$)
{
  my ($var, $basename, $extension, $where) = @_;
  define_variable ($var,
		   join (' ', map { "$_.$extension" } @$basename),
		   $where);
}

# Like define_variable, but define a variable to be the configure
# substitution by the same name.
sub define_configure_variable
{
  my ($var) = @_;
  # Some variables we do not want to output.  For instance it
  # would be a bad idea to output `U = @U@` when `@U@` can be
  # substituted as `\`.
  my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
  Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst ($var),
			      '', $configure_vars{$var}, $pretty);
}

# define_compiler_variable ($LANG)
# --------------------------------
# Define a compiler variable.  We also handle defining the 'LT'
# version of the command when using libtool.
sub define_compiler_variable
{
    my ($lang) = @_;

my ($var, $value) = ($lang->compiler, $lang->compile);
    my $libtool_tag = '';
    $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
      if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
    define_variable ($var, $value, INTERNAL);
    if (var ('LIBTOOL'))
      {
	my $verbose = define_verbose_libtool ();
	define_variable ("LT$var",
                         "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS)"
                         . " \$(LIBTOOLFLAGS) --mode=compile $value",
                         INTERNAL);
      }
    define_verbose_tagvar ($lang->ccer || 'GEN');
}

sub define_linker_variable
{
    my ($lang) = @_;

my $libtool_tag = '';
    $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
      if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
    # CCLD = $(CC).
    define_variable ($lang->lder, $lang->ld, INTERNAL);
    # CCLINK = $(CCLD) blah blah...
    my $link = '';
    if (var ('LIBTOOL'))
      {
	my $verbose = define_verbose_libtool ();
	$link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
		. "\$(LIBTOOLFLAGS) --mode=link ";
      }
    define_variable ($lang->linker, $link . $lang->link, INTERNAL);
    define_variable ($lang->compiler, $lang, INTERNAL);
    define_verbose_tagvar ($lang->lder || 'GEN');
}

sub define_per_target_linker_variable
{
  my ($linker, $target) = @_;

# If the user wrote a custom link command, we don't define ours.
  my $custom_link = "${target}_LINK";
  if (set_seen ($custom_link))
    {
      my $verbose = $custom_link if var (verbose_var ($custom_link));
      return ($custom_link, $verbose);
    }

my $xlink = $linker ? $linker : 'LINK';

my $lang = $link_languages{$xlink};
  prog_error "Unknown language for linker variable '$xlink'"
    unless $lang;

my $link_command = $lang->link;
  if (var 'LIBTOOL')
    {
      my $libtool_tag = '';
      $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
	if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};

my $verbose = define_verbose_libtool ();
      $link_command =
	"\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
	. "--mode=link " . $link_command;
    }

# Rewrite each occurrence of 'AM_$flag' in the link
  # command into '${derived}_$flag' if it exists.
  my $orig_command = $link_command;
  my @flags = (@{$lang->flags}, 'LDFLAGS');
  push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
  for my $flag (@flags)
    {
      my $val = "${target}_$flag";
      $link_command =~ s/$AM_$flag$/$$val$/
	if set_seen ($val);
    }

# If the computed command is the same as the generic command, use
  # the command linker variable.
  return ($lang->linker, $lang->lder)
    if $link_command eq $orig_command;

define_variable ("${target}_LINK", $link_command, INTERNAL);
  return ("${target}_LINK", $lang->lder);
}

################################################################

# check_trailing_slash ($WHERE, $LINE)
# ------------------------------------
# Return 1 iff $LINE ends with a slash.
# Might modify $LINE.
sub check_trailing_slash ($\$)
{
  my ($where, $line) = @_;

# Ignore '##' lines.
  return 0 if $$line =~ /$IGNORE_PATTERN/o;

# Catch and fix a common error.
  msg "syntax", $where, "whitespace following trailing backslash"
    if $$line =~ s/\\\s+\n$/\\\n/;

return $$line =~ /\\$/;
}

# read_am_file ($AMFILE, $WHERE, $RELDIR)
# ---------------------------------------
# Read $AMFILE file name which is located in $RELDIR, and set up
# global variables resetted by '&generate_makefile'.  Simultaneously
# copy lines from $AMFILE into '$output_trailer', or define variables
# as appropriate.
#
# NOTE: We put rules in the trailer section.  We want user rules to
# come after our generated stuff.
sub read_am_file
{
    my ($amfile, $where, $reldir) = @_;
    my $canon_reldir = &canonicalize ($reldir);

my $am_file = new Automake::XFile ("< $amfile");
    verb "reading $amfile";

# Keep track of the youngest output dependency.
    my $mtime = mtime $amfile;
    $output_deps_greatest_timestamp = $mtime
      if $mtime > $output_deps_greatest_timestamp;

my $spacing = '';
    my $comment = '';
    my $blank = 0;
    my $saw_bk = 0;
    my $var_look = VAR_ASIS;

use constant IN_VAR_DEF => 0;
    use constant IN_RULE_DEF => 1;
    use constant IN_COMMENT => 2;
    my $prev_state = IN_RULE_DEF;

while ($_ = $am_file->getline)
    {
	$where->set ("$amfile:$.");
	if (/$IGNORE_PATTERN/o)
	{
	    # Merely delete comments beginning with two hashes.
	}
	elsif (/$WHITE_PATTERN/o)
	{
	    error $where, "blank line following trailing backslash"
	      if $saw_bk;
	    # Stick a single white line before the incoming macro or rule.
	    $spacing = "\n";
	    $blank = 1;
	    # Flush all comments seen so far.
	    if ($comment ne '')
	    {
		$output_vars .= $comment;
		$comment = '';
	    }
	}
	elsif (/$COMMENT_PATTERN/o)
	{
	    # Stick comments before the incoming macro or rule.  Make
	    # sure a blank line precedes the first block of comments.
	    $spacing = "\n" unless $blank;
	    $blank = 1;
	    $comment .= $spacing . $_;
	    $spacing = '';
	    $prev_state = IN_COMMENT;
	}
	else
	{
	    last;
	}
	$saw_bk = check_trailing_slash ($where, $_);
    }

# We save the conditional stack on entry, and then check to make
    # sure it is the same on exit.  This lets us conditionally include
    # other files.
    my @saved_cond_stack = @cond_stack;
    my $cond = new Automake::Condition (@cond_stack);

my $last_var_name = '';
    my $last_var_type = '';
    my $last_var_value = '';
    my $last_where;
    # FIXME: shouldn't use $_ in this loop; it is too big.
    while ($_)
    {
	$where->set ("$amfile:$.");

# Make sure the line is \n-terminated.
	chomp;
	$_ .= "\n";

# Don't look at MAINTAINER_MODE_TRUE here.  That shouldn't be
	# used by users.  @MAINT@ is an anachronism now.
	$_ =~ s/\@MAINT\@//g
	    unless $seen_maint_mode;

my $new_saw_bk = check_trailing_slash ($where, $_);

if ($reldir eq '.')
	  {
	    # If present, eat the following '_' or '/', converting
	    # "%reldir%/foo" and "%canon_reldir%_foo" into plain "foo"
	    # when $reldir is '.'.
	    $_ =~ s,%(D|reldir)%/,,g;
	    $_ =~ s,%(C|canon_reldir)%_,,g;
	  }
	$_ =~ s/%(D|reldir)%/${reldir}/g;
	$_ =~ s/%(C|canon_reldir)%/${canon_reldir}/g;

if (/$IGNORE_PATTERN/o)
	{
	    # Merely delete comments beginning with two hashes.

# Keep any backslash from the previous line.
	    $new_saw_bk = $saw_bk;
	}
	elsif (/$WHITE_PATTERN/o)
	{
	    # Stick a single white line before the incoming macro or rule.
	    $spacing = "\n";
	    error $where, "blank line following trailing backslash"
	      if $saw_bk;
	}
	elsif (/$COMMENT_PATTERN/o)
	{
	    error $where, "comment following trailing backslash"
	      if $saw_bk && $prev_state != IN_COMMENT;

# Stick comments before the incoming macro or rule.
	    $comment .= $spacing . $_;
	    $spacing = '';
	    $prev_state = IN_COMMENT;
	}
	elsif ($saw_bk)
	{
	    if ($prev_state == IN_RULE_DEF)
	    {
	      my $cond = new Automake::Condition @cond_stack;
	      $output_trailer .= $cond->subst_string;
	      $output_trailer .= $_;
	    }
	    elsif ($prev_state == IN_COMMENT)
	    {
		# If the line doesn't start with a '#', add it.
		# We do this because a continued comment like
		#   # A = foo \
		#         bar \
		#         baz
		# is not portable.  BSD make doesn't honor
		# escaped newlines in comments.
		s/^#?/#/;
		$comment .= $spacing . $_;
	    }
	    else # $prev_state == IN_VAR_DEF
	    {
	      $last_var_value .= ' '
		unless $last_var_value =~ /\s$/;
	      $last_var_value .= $_;

if (!/\\$/)
		{
		  Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
					      $last_var_type, $cond,
					      $last_var_value, $comment,
					      $last_where, VAR_ASIS)
		    if $cond != FALSE;
		  $comment = $spacing = '';
		}
	    }
	}

elsif (/$IF_PATTERN/o)
	  {
	    $cond = cond_stack_if ($1, $2, $where);
	  }
	elsif (/$ELSE_PATTERN/o)
	  {
	    $cond = cond_stack_else ($1, $2, $where);
	  }
	elsif (/$ENDIF_PATTERN/o)
	  {
	    $cond = cond_stack_endif ($1, $2, $where);
	  }

elsif (/$RULE_PATTERN/o)
	{
	    # Found a rule.
	    $prev_state = IN_RULE_DEF;

# For now we have to output all definitions of user rules
	    # and can't diagnose duplicates (see the comment in
	    # Automake::Rule::define). So we go on and ignore the return value.
	    Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);

check_variable_expansions ($_, $where);

$output_trailer .= $comment . $spacing;
	    my $cond = new Automake::Condition @cond_stack;
	    $output_trailer .= $cond->subst_string;
	    $output_trailer .= $_;
	    $comment = $spacing = '';
	}
	elsif (/$ASSIGNMENT_PATTERN/o)
	{
	    # Found a macro definition.
	    $prev_state = IN_VAR_DEF;
	    $last_var_name = $1;
	    $last_var_type = $2;
	    $last_var_value = $3;
	    $last_where = $where->clone;
	    if ($3 ne '' && substr ($3, -1) eq "\\")
	      {
		# We preserve the '\' because otherwise the long lines
		# that are generated will be truncated by broken
		# 'sed's.
		$last_var_value = $3 . "\n";
	      }
	    # Normally we try to output variable definitions in the
	    # same format they were input.  However, POSIX compliant
	    # systems are not required to support lines longer than
	    # 2048 bytes (most notably, some sed implementation are
	    # limited to 4000 bytes, and sed is used by config.status
	    # to rewrite Makefile.in into Makefile).  Moreover nobody
	    # would really write such long lines by hand since it is
	    # hardly maintainable.  So if a line is longer that 1000
	    # bytes (an arbitrary limit), assume it has been
	    # automatically generated by some tools, and flatten the
	    # variable definition.  Otherwise, keep the variable as it
	    # as been input.
	    $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;

if (!/\\$/)
	      {
		Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
					    $last_var_type, $cond,
					    $last_var_value, $comment,
					    $last_where, $var_look)
		  if $cond != FALSE;
		$comment = $spacing = '';
		$var_look = VAR_ASIS;
	      }
	}
	elsif (/$INCLUDE_PATTERN/o)
	{
	    my $path = $1;

if ($path =~ s/^\$$top_srcdir$\///)
	      {
		push (@include_stack, "\$$top_srcdir$/$path");
		# Distribute any included file.

# Always use the $(top_srcdir) prefix in DIST_COMMON,
		# otherwise OSF make will implicitly copy the included
		# file in the build tree during "make distdir" to satisfy
		# the dependency.
		# (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
		push_dist_common ("\$$top_srcdir$/$path");
	      }
	    else
	      {
		$path =~ s/\$$srcdir$\///;
		push (@include_stack, "\$$srcdir$/$path");
		# Always use the $(srcdir) prefix in DIST_COMMON,
		# otherwise OSF make will implicitly copy the included
		# file in the build tree during "make distdir" to satisfy
		# the dependency.
		# (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
		push_dist_common ("\$$srcdir$/$path");
		$path = $relative_dir . "/" . $path if $relative_dir ne '.';
	      }
	    my $new_reldir = File::Spec->abs2rel ($path, $relative_dir);
	    $new_reldir = '.' if $new_reldir !~ s,/[^/]*$,,;
	    $where->push_context ("'$path' included from here");
	    read_am_file ($path, $where, $new_reldir);
	    $where->pop_context;
	}
	else
	{
	    # This isn't an error; it is probably a continued rule.
	    # In fact, this is what we assume.
	    $prev_state = IN_RULE_DEF;
	    check_variable_expansions ($_, $where);
	    $output_trailer .= $comment . $spacing;
	    my $cond = new Automake::Condition @cond_stack;
	    $output_trailer .= $cond->subst_string;
	    $output_trailer .= $_;
	    $comment = $spacing = '';
	    error $where, "'#' comment at start of rule is unportable"
	      if $_ =~ /^\t\s*\#/;
	}

$saw_bk = $new_saw_bk;
	$_ = $am_file->getline;
    }

$output_trailer .= $comment;

error ($where, "trailing backslash on last line")
      if $saw_bk;

error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
		    : "too many conditionals closed in include file"))
      if "@saved_cond_stack" ne "@cond_stack";
}

# A helper for read_main_am_file which initializes configure variables
# and variables from header-vars.am.
sub define_standard_variables ()
{
  my $saved_output_vars = $output_vars;
  my ($comments, undef, $rules) =
    file_contents_internal (1, "$libdir/am/header-vars.am",
			    new Automake::Location);

foreach my $var (sort keys %configure_vars)
    {
      define_configure_variable ($var);
    }

$output_vars .= $comments . $rules;
}

# read_main_am_file ($MAKEFILE_AM, $MAKEFILE_IN)
# ----------------------------------------------
sub read_main_am_file
{
    my ($amfile, $infile) = @_;

# This supports the strange variable tricks we are about to play.
    prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
      if (scalar (variables) > 0);

# Generate copyright header for generated Makefile.in.
    # We do discard the output of predefined variables, handled below.
    $output_vars = ("# " . basename ($infile) . " generated by automake "
		   . $VERSION . " from " . basename ($amfile) . ".\n");
    $output_vars .= '# ' . subst ('configure_input') . "\n";
    $output_vars .= $gen_copyright;

# We want to predefine as many variables as possible.  This lets
    # the user set them with '+=' in Makefile.am.
    define_standard_variables;

# Read user file, which might override some of our values.
    read_am_file ($amfile, new Automake::Location, '.');
}

################################################################

# $STRING
# flatten ($ORIGINAL_STRING)
# --------------------------
sub flatten
{
  $_ = shift;

s/\\\n//somg;
  s/\s+/ /g;
  s/^ //;
  s/ $//;

return $_;
}

# transform_token ($TOKEN, \%PAIRS, $KEY)
# ---------------------------------------
# Return the value associated to $KEY in %PAIRS, as used on $TOKEN
# (which should be ?KEY? or any of the special %% requests)..
sub transform_token ($\%$)
{
  my ($token, $transform, $key) = @_;
  my $res = $transform->{$key};
  prog_error "Unknown key '$key' in '$token'" unless defined $res;
  return $res;
}

# transform ($TOKEN, \%PAIRS)
# ---------------------------
# If ($TOKEN, $VAL) is in %PAIRS:
#   - replaces %KEY% with $VAL,
#   - enables/disables ?KEY? and ?!KEY?,
#   - replaces %?KEY% with TRUE or FALSE.
sub transform ($\%)
{
  my ($token, $transform) = @_;

# %KEY%.
  # Must be before the following pattern to exclude the case
  # when there is neither IFTRUE nor IFFALSE.
  if ($token =~ /^%([\w\-]+)%$/)
    {
      return transform_token ($token, %$transform, $1);
    }
  # %?KEY%.
  elsif ($token =~ /^%\?([\w\-]+)%$/)
    {
      return transform_token ($token, %$transform, $1) ? 'TRUE' : 'FALSE';
    }
  # ?KEY? and ?!KEY?.
  elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
    {
      my $neg = ($1 eq '!') ? 1 : 0;
      my $val = transform_token ($token, %$transform, $2);
      return (!!$val == $neg) ? '##%' : '';
    }
  else
    {
      prog_error "Unknown request format: $token";
    }
}

# $TEXT
# preprocess_file ($MAKEFILE, [%TRANSFORM])
# -----------------------------------------
# Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
# No extra parsing or post-processing is done (i.e., recognition of
# rules declaration or of make variables definitions).
sub preprocess_file
{
  my ($file, %transform) = @_;

# Complete %transform with global options.
  # Note that %transform goes last, so it overrides global options.
  %transform = ( 'MAINTAINER-MODE'
		 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',

'XZ'          => !! option 'dist-xz',
		 'LZIP'        => !! option 'dist-lzip',
		 'BZIP2'       => !! option 'dist-bzip2',
		 'COMPRESS'    => !! option 'dist-tarZ',
		 'GZIP'        =>  ! option 'no-dist-gzip',
		 'SHAR'        => !! option 'dist-shar',
		 'ZIP'         => !! option 'dist-zip',
		 'ZSTD'        => !! option 'dist-zstd',
		 'DIST_BUILT_SOURCES' => !! option 'dist-built-sources',

'INSTALL-INFO' =>  ! option 'no-installinfo',
		 'INSTALL-MAN'  =>  ! option 'no-installman',
		 'CK-NEWS'      => !! option 'check-news',

'SUBDIRS'      => !! var ('SUBDIRS'),
		 'TOPDIR_P'     => $relative_dir eq '.',

'BUILD'    => ($seen_canonical >= AC_CANONICAL_BUILD),
		 'HOST'     => ($seen_canonical >= AC_CANONICAL_HOST),
		 'TARGET'   => ($seen_canonical >= AC_CANONICAL_TARGET),

'LIBTOOL'      => !! var ('LIBTOOL'),
		 'NONLIBTOOL'   => 1,
		%transform);

if (! defined ($_ = $am_file_cache{$file}))
    {
      verb "reading $file";
      # Swallow the whole file.
      my $fc_file = new Automake::XFile "< $file";
      my $saved_dollar_slash = $/;
      undef $/;
      $_ = $fc_file->getline;
      $/ = $saved_dollar_slash;
      $fc_file->close;
      # Remove ##-comments.
      # Besides we don't need more than two consecutive new-lines.
      s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
      # Remember the contents of the just-read file.
      $am_file_cache{$file} = $_;
    }

# Substitute Automake template tokens.
  s/(?: % \?? [\w\-]+ %
      | \? !? [\w\-]+ \?
    )/transform($&, %transform)/gex;
  # transform() may have added some ##%-comments to strip.
  # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
  # ####### and do not remove the latter.)
  s/^[ \t]*(?:##%)+.*\n//gm;

return $_;
}

# @PARAGRAPHS
# make_paragraphs ($MAKEFILE, [%TRANSFORM])
# -----------------------------------------
# Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
# paragraphs.
sub make_paragraphs
{
  my ($file, %transform) = @_;
  $transform{FIRST} = !$transformed_files{$file};
  $transformed_files{$file} = 1;

my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
  my @res;

while (defined ($_ = shift @lines))
    {
      my $paragraph = $_;
      # If we are a rule, eat as long as we start with a tab.
      if (/$RULE_PATTERN/smo)
	{
	  while (defined ($_ = shift @lines) && $_ =~ /^\t/)
	    {
	      $paragraph .= "\n$_";
	    }
	  unshift (@lines, $_);
	}

# If we are a comments, eat as much comments as you can.
      elsif (/$COMMENT_PATTERN/smo)
	{
	  while (defined ($_ = shift @lines)
		 && $_ =~ /$COMMENT_PATTERN/smo)
	    {
	      $paragraph .= "\n$_";
	    }
	  unshift (@lines, $_);
	}

push @res, $paragraph;
    }

return @res;
}

# ($COMMENT, $VARIABLES, $RULES)
# file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
# ------------------------------------------------------------
# Return contents of a file from $libdir/am, automatically skipping
# macros or rules which are already known. $IS_AM iff the caller is
# reading an Automake file (as opposed to the user's Makefile.am).
sub file_contents_internal
{
    my ($is_am, $file, $where, %transform) = @_;

$where->set ($file);

my $result_vars = '';
    my $result_rules = '';
    my $comment = '';
    my $spacing = '';

# The following flags are used to track rules spanning across
    # multiple paragraphs.
    my $is_rule = 0;		# 1 if we are processing a rule.
    my $discard_rule = 0;	# 1 if the current rule should not be output.

foreach (make_paragraphs ($file, %transform))
    {
	# FIXME: no line number available.
	$where->set ($file);

# Sanity checks.
	error $where, "blank line following trailing backslash:\n$_"
	  if /\\$/;
	error $where, "comment following trailing backslash:\n$_"
	  if /\\#/;

if (/^$/)
	{
	    $is_rule = 0;
	    # Stick empty line before the incoming macro or rule.
	    $spacing = "\n";
	}
	elsif (/$COMMENT_PATTERN/mso)
	{
	    $is_rule = 0;
	    # Stick comments before the incoming macro or rule.
	    $comment = "$_\n";
	}

# Handle inclusion of other files.
	elsif (/$INCLUDE_PATTERN/o)
	{
	    if ($cond != FALSE)
	      {
		my $file = ($is_am ? "$libdir/am/" : '') . $1;
		$where->push_context ("'$file' included from here");
		# N-ary '.=' fails.
		my ($com, $vars, $rules)
		  = file_contents_internal ($is_am, $file, $where, %transform);
		$where->pop_context;
		$comment .= $com;
		$result_vars .= $vars;
		$result_rules .= $rules;
	      }
	}

# Handling the conditionals.
	elsif (/$IF_PATTERN/o)
	  {
	    $cond = cond_stack_if ($1, $2, $file);
	  }
	elsif (/$ELSE_PATTERN/o)
	  {
	    $cond = cond_stack_else ($1, $2, $file);
	  }
	elsif (/$ENDIF_PATTERN/o)
	  {
	    $cond = cond_stack_endif ($1, $2, $file);
	  }

# Handling rules.
	elsif (/$RULE_PATTERN/mso)
	{
	  $is_rule = 1;
	  $discard_rule = 0;
	  # Separate relationship from optional actions: the first
	  # `new-line tab" not preceded by backslash (continuation
	  # line).
	  my $paragraph = $_;
	  /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
	  my ($relationship, $actions) = ($1, $2 || '');

# Separate targets from dependencies: the first colon.
	  $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
	  my ($targets, $dependencies) = ($1, $2);
	  # Remove the escaped new lines.
	  # I don't know why, but I have to use a tmp $flat_deps.
	  my $flat_deps = flatten ($dependencies);
	  my @deps = split (' ', $flat_deps);

foreach (split (' ', $targets))
	    {
	      # FIXME: 1. We are not robust to people defining several targets
	      # at once, only some of them being in %dependencies.  The
	      # actions from the targets in %dependencies are usually generated
	      # from the content of %actions, but if some targets in $targets
	      # are not in %dependencies the ELSE branch will output
	      # a rule for all $targets (i.e. the targets which are both
	      # in %dependencies and $targets will have two rules).

# FIXME: 2. The logic here is not able to output a
	      # multi-paragraph rule several time (e.g. for each condition
	      # it is defined for) because it only knows the first paragraph.

# FIXME: 3. We are not robust to people defining a subset
	      # of a previously defined "multiple-target" rule.  E.g.
	      # 'foo:' after 'foo bar:'.

# Output only if not in FALSE.
	      if (defined $dependencies{$_} && $cond != FALSE)
		{
		  depend ($_, @deps);
		  register_action ($_, $actions);
		}
	      else
		{
		  # Free-lance dependency.  Output the rule for all the
		  # targets instead of one by one.
		  my @undefined_conds =
		    Automake::Rule::define ($targets, $file,
					    $is_am ? RULE_AUTOMAKE : RULE_USER,
					    $cond, $where);
		  for my $undefined_cond (@undefined_conds)
		    {
		      my $condparagraph = $paragraph;
		      $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
		      $result_rules .= "$spacing$comment$condparagraph\n";
		    }
		  if (scalar @undefined_conds == 0)
		    {
		      # Remember to discard next paragraphs
		      # if they belong to this rule.
		      # (but see also FIXME: #2 above.)
		      $discard_rule = 1;
		    }
		  $comment = $spacing = '';
		  last;
		}
	    }
	}

elsif (/$ASSIGNMENT_PATTERN/mso)
	{
	    my ($var, $type, $val) = ($1, $2, $3);
	    error $where, "variable '$var' with trailing backslash"
	      if /\\$/;

$is_rule = 0;

Automake::Variable::define ($var,
					$is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
					$type, $cond, $val, $comment, $where,
					VAR_ASIS)
	      if $cond != FALSE;

$comment = $spacing = '';
	}
	else
	{
	    # This isn't an error; it is probably some tokens which
	    # configure is supposed to replace, such as '@SET-MAKE@',
	    # or some part of a rule cut by an if/endif.
	    if (! $cond->false && ! ($is_rule && $discard_rule))
	      {
		s/^/$cond->subst_string/gme;
		$result_rules .= "$spacing$comment$_\n";
	      }
	    $comment = $spacing = '';
	}
    }

error ($where, @cond_stack ?
	   "unterminated conditionals: @cond_stack" :
	   "too many conditionals closed in include file")
      if "@saved_cond_stack" ne "@cond_stack";

return ($comment, $result_vars, $result_rules);
}

# $CONTENTS
# file_contents ($BASENAME, $WHERE, [%TRANSFORM])
# -----------------------------------------------
# Return contents of a file from $libdir/am, automatically skipping
# macros or rules which are already known.
sub file_contents
{
    my ($basename, $where, %transform) = @_;
    my ($comments, $variables, $rules) =
      file_contents_internal (1, "$libdir/am/$basename.am", $where,
			      %transform);
    return "$comments$variables$rules";
}

# @PREFIX
# am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
# ----------------------------------------------------
# Find all variable prefixes that are used for install directories.  A
# prefix 'zar' qualifies iff:
#
# * 'zardir' is a variable.
# * 'zar_PRIMARY' is a variable.
#
# As a side effect, it looks for misspellings.  It is an error to have
# a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
# "bni_PROGRAMS".  However, unusual prefixes are allowed if a variable
# of the same name (with "dir" appended) exists.  For instance, if the
# variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
# This is to provide a little extra flexibility in those cases which
# need it.
sub am_primary_prefixes
{
  my ($primary, $can_dist, @prefixes) = @_;

local $_;
  my %valid = map { $_ => 0 } @prefixes;
  $valid{'EXTRA'} = 0;
  foreach my $var (variables $primary)
    {
      # Automake is allowed to define variables that look like primaries
      # but which aren't.  E.g. INSTALL_sh_DATA.
      # Autoconf can also define variables like INSTALL_DATA, so
      # ignore all configure variables (at least those which are not
      # redefined in Makefile.am).
      # FIXME: We should make sure that these variables are not
      # conditionally defined (or else adjust the condition below).
      my $def = $var->def (TRUE);
      next if $def && $def->owner != VAR_MAKEFILE;

my $varname = $var->name;

if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
	{
	  my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
	  if ($dist ne '' && ! $can_dist)
	    {
	      err_var ($var,
		       "invalid variable '$varname': 'dist' is forbidden");
	    }
	  # Standard directories must be explicitly allowed.
	  elsif (! defined $valid{$X} && exists $standard_prefix{$X})
	    {
	      err_var ($var,
		       "'${X}dir' is not a legitimate directory " .
		       "for '$primary'");
	    }
	  # A not explicitly valid directory is allowed if Xdir is defined.
	  elsif (! defined $valid{$X} &&
		 $var->requires_variables ("'$varname' is used", "${X}dir"))
	    {
	      # Nothing to do.  Any error message has been output
	      # by $var->requires_variables.
	    }
	  else
	    {
	      # Ensure all extended prefixes are actually used.
	      $valid{"$base$dist$X"} = 1;
	    }
	}
      else
	{
	  prog_error "unexpected variable name: $varname";
	}
    }

# Return only those which are actually defined.
  return sort grep { var ($_ . '_' . $primary) } keys %valid;
}

# am_install_var (-OPTION..., file, HOW, where...)
# ------------------------------------------------
#
# Handle 'where_HOW' variable magic.  Does all lookups, generates
# install code, and possibly generates code to define the primary
# variable.  The first argument is the name of the .am file to munge,
# the second argument is the primary variable (e.g. HEADERS), and all
# subsequent arguments are possible installation locations.
#
# Returns list of [$location, $value] pairs, where
# $value's are the values in all where_HOW variable, and $location
# there associated location (the place here their parent variables were
# defined).
#
# FIXME: this should be rewritten to be cleaner.  It should be broken
# up into multiple functions.
#
sub am_install_var
{
  my (@args) = @_;

my $do_require = 1;
  my $can_dist = 0;
  my $default_dist = 0;
  while (@args)
    {
      if ($args[0] eq '-noextra')
	{
	  $do_require = 0;
	}
      elsif ($args[0] eq '-candist')
	{
	  $can_dist = 1;
	}
      elsif ($args[0] eq '-defaultdist')
	{
	  $default_dist = 1;
	  $can_dist = 1;
	}
      elsif ($args[0] !~ /^-/)
	{
	  last;
	}
      shift (@args);
    }

my ($file, $primary, @prefix) = @args;

# Now that configure substitutions are allowed in where_HOW
  # variables, it is an error to actually define the primary.  We
  # allow 'JAVA', as it is customarily used to mean the Java
  # interpreter.  This is but one of several Java hacks.  Similarly,
  # 'PYTHON' is customarily used to mean the Python interpreter.
  reject_var $primary, "'$primary' is an anachronism"
    unless $primary eq 'JAVA' || $primary eq 'PYTHON';

# Get the prefixes which are valid and actually used.
  @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);

# If a primary includes a configure substitution, then the EXTRA_
  # form is required.  Otherwise we can't properly do our job.
  my $require_extra;

my @used = ();
  my @result = ();

foreach my $X (@prefix)
    {
      my $nodir_name = $X;
      my $one_name = $X . '_' . $primary;
      my $one_var = var $one_name;

my $strip_subdir = 1;
      # If subdir prefix should be preserved, do so.
      if ($nodir_name =~ /^nobase_/)
	{
	  $strip_subdir = 0;
	  $nodir_name =~ s/^nobase_//;
	}

# If files should be distributed, do so.
      my $dist_p = 0;
      if ($can_dist)
	{
	  $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
		     || (! $default_dist && $nodir_name =~ /^dist_/));
	  $nodir_name =~ s/^(dist|nodist)_//;
	}

# Use the location of the currently processed variable.
      # We are not processing a particular condition, so pick the first
      # available.
      my $tmpcond = $one_var->conditions->one_cond;
      my $where = $one_var->rdef ($tmpcond)->location->clone;

# Append actual contents of where_PRIMARY variable to
      # @result, skipping @substitutions@.
      foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
	{
	  my ($loc, $value) = @$locvals;
	  # Skip configure substitutions.
	  if ($value =~ /^\@.*\@$/)
	    {
	      if ($nodir_name eq 'EXTRA')
		{
		  error ($where,
			 "'$one_name' contains configure substitution, "
			 . "but shouldn't");
		}
	      # Check here to make sure variables defined in
	      # configure.ac do not imply that EXTRA_PRIMARY
	      # must be defined.
	      elsif (! defined $configure_vars{$one_name})
		{
		  $require_extra = $one_name
		    if $do_require;
		}
	    }
	  else
	    {
	      # Strip any $(EXEEXT) suffix the user might have added,
              # or this will confuse handle_source_transform() and
              # check_canonical_spelling().
	      # We'll add $(EXEEXT) back later anyway.
	      # Do it here rather than in handle_programs so the
              # uniquifying at the end of this function works.
	      ${$locvals}[1] =~ s/\$$EXEEXT$$//
	        if $primary eq 'PROGRAMS';

push (@result, $locvals);
	    }
	}
      # A blatant hack: we rewrite each _PROGRAMS primary to include
      # EXEEXT.
      append_exeext { 1 } $one_name
	if $primary eq 'PROGRAMS';
      # "EXTRA" shouldn't be used when generating clean targets,
      # all, or install targets.  We used to warn if EXTRA_FOO was
      # defined uselessly, but this was annoying.
      next
	if $nodir_name eq 'EXTRA';

if ($nodir_name eq 'check')
	{
	  push (@check, '$(' . $one_name . ')');
	}
      else
	{
	  push (@used, '$(' . $one_name . ')');
	}

# Is this to be installed?
      my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';

# If so, with install-exec? (or install-data?).
      my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);

my $check_options_p = $install_p && !! option 'std-options';

# Use the location of the currently processed variable as context.
      $where->push_context ("while processing '$one_name'");

# The variable containing all files to distribute.
      my $distvar = "\$($one_name)";
      $distvar = shadow_unconditionally ($one_name, $where)
	if ($dist_p && $one_var->has_conditional_contents);

# Singular form of $PRIMARY.
      (my $one_primary = $primary) =~ s/S$//;
      $output_rules .= file_contents ($file, $where,
                                      PRIMARY     => $primary,
                                      ONE_PRIMARY => $one_primary,
                                      DIR         => $X,
                                      NDIR        => $nodir_name,
                                      BASE        => $strip_subdir,
                                      EXEC        => $exec_p,
                                      INSTALL     => $install_p,
                                      DIST        => $dist_p,
                                      DISTVAR     => $distvar,
                                      'CK-OPTS'   => $check_options_p);
    }

# The JAVA variable is used as the name of the Java interpreter.
  # The PYTHON variable is used as the name of the Python interpreter.
  if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
    {
      # Define it.
      define_pretty_variable ($primary, TRUE, INTERNAL, @used);
      $output_vars .= "\n";
    }

err_var ($require_extra,
	   "'$require_extra' contains configure substitution,\n"
	   . "but 'EXTRA_$primary' not defined")
    if ($require_extra && ! var ('EXTRA_' . $primary));

# Push here because PRIMARY might be configure time determined.
  push (@all, '$(' . $primary . ')')
    if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';

# Make the result unique.  This lets the user use conditionals in
  # a natural way, but still lets us program lazily -- we don't have
  # to worry about handling a particular object more than once.
  # We will keep only one location per object.
  my %result = ();
  for my $pair (@result)
    {
      my ($loc, $val) = @$pair;
      $result{$val} = $loc;
    }
  my @l = sort keys %result;
  return map { [$result{$_}->clone, $_] } @l;
}

################################################################

# Each key in this hash is the name of a directory holding a
# Makefile.in.  These variables are local to 'is_make_dir'.
my %make_dirs = ();
my $make_dirs_set = 0;

# is_make_dir ($DIRECTORY)
# ------------------------
sub is_make_dir
{
    my ($dir) = @_;
    if (! $make_dirs_set)
    {
	foreach my $iter (@configure_input_files)
	{
	    $make_dirs{dirname ($iter)} = 1;
	}
	# We also want to notice Makefile.in's.
	foreach my $iter (@other_input_files)
	{
	    if ($iter =~ /Makefile\.in$/)
	    {
		$make_dirs{dirname ($iter)} = 1;
	    }
	}
	$make_dirs_set = 1;
    }
    return defined $make_dirs{$dir};
}

################################################################

# Find the aux dir.  This should match the algorithm used by
# ./configure. (See the Autoconf documentation for for
# AC_CONFIG_AUX_DIR.)
sub locate_aux_dir ()
{
  if (! $config_aux_dir_set_in_configure_ac)
    {
      # The default auxiliary directory is the first
      # of ., .., or ../.. that contains install-sh.
      # Assume . if install-sh doesn't exist yet.
      for my $dir (qw (. .. ../..))
	{
	  if (-f "$dir/install-sh")
	    {
	      $config_aux_dir = $dir;
	      last;
	    }
	}
      $config_aux_dir = '.' unless $config_aux_dir;
    }
  # Avoid unsightly '/.'s.
  $am_config_aux_dir =
    '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
  $am_config_aux_dir =~ s,/*$,,;
}

# push_required_file ($DIR, $FILE, $FULLFILE)
# -------------------------------------------
# Push the given file onto DIST_COMMON.
sub push_required_file
{
  my ($dir, $file, $fullfile) = @_;

# If the file to be distributed is in the same directory of the
  # currently processed Makefile.am, then we want to distribute it
  # from this same Makefile.am.
  if ($dir eq $relative_dir)
    {
      push_dist_common ($file);
    }
  # This is needed to allow a construct in a non-top-level Makefile.am
  # to require a file in the build-aux directory (see at least the test
  # script 'test-driver-is-distributed.sh').  This is related to the
  # automake bug#9546.  Note that the use of $config_aux_dir instead
  # of $am_config_aux_dir here is deliberate and necessary.
  elsif ($dir eq $config_aux_dir)
    {
      push_dist_common ("$am_config_aux_dir/$file");
    }
  # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
  # We probably need some refactoring of this function and its callers,
  # to have a more explicit and systematic handling of all the special
  # cases; but, since there are only two of them, this is low-priority
  # ATM.
  elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
    {
      # Avoid unsightly '/.'s.
      my $am_config_libobj_dir =
        '$(top_srcdir)' .
        ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
      $am_config_libobj_dir =~ s|/*$||;
      push_dist_common ("$am_config_libobj_dir/$file");
    }
  elsif ($relative_dir eq '.' && ! is_make_dir ($dir))
    {
      # If we are doing the topmost directory, and the file is in a
      # subdir which does not have a Makefile, then we distribute it
      # here.

# If a required file is above the source tree, it is important
      # to prefix it with '$(srcdir)' so that no VPATH search is
      # performed.  Otherwise problems occur with Make implementations
      # that rewrite and simplify rules whose dependencies are found in a
      # VPATH location.  Here is an example with OSF1/Tru64 Make.
      #
      #   % cat Makefile
      #   VPATH = sub
      #   distdir: ../a
      #	          echo ../a
      #   % ls
      #   Makefile a
      #   % make
      #   echo a
      #   a
      #
      # Dependency '../a' was found in 'sub/../a', but this make
      # implementation simplified it as 'a'.  (Note that the sub/
      # directory does not even exist.)
      #
      # This kind of VPATH rewriting seems hard to cancel.  The
      # distdir.am hack against VPATH rewriting works only when no
      # simplification is done, i.e., for dependencies which are in
      # subdirectories, not in enclosing directories.  Hence, in
      # the latter case we use a full path to make sure no VPATH
      # search occurs.
      $fullfile = '$(srcdir)/' . $fullfile
	if $dir =~ m,^\.\.(?:$|/),;

push_dist_common ($fullfile);
    }
  else
    {
      prog_error "a Makefile in relative directory $relative_dir " .
                 "can't add files in directory $dir to DIST_COMMON";
    }
}

# If a file name appears as a key in this hash, then it has already
# been checked for.  This allows us not to report the same error more
# than once.
my %required_file_not_found = ();

# required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
# -------------------------------------------------------
# Verify that the file must exist in $DIRECTORY, or install it.
sub required_file_check_or_copy
{
  my ($where, $dir, $file) = @_;

my $fullfile = "$dir/$file";
  my $found_it = 0;
  my $dangling_sym = 0;

if (-l $fullfile && ! -f $fullfile)
    {
      $dangling_sym = 1;
    }
  elsif (dir_has_case_matching_file ($dir, $file))
    {
      $found_it = 1;
    }

# '--force-missing' only has an effect if '--add-missing' is
  # specified.
  return
    if $found_it && (! $add_missing || ! $force_missing);

# If we've already looked for it, we're done.  You might wonder why we
  # don't do this before searching for the file.  If we do that, then
  # something like AC_OUTPUT([subdir/foo foo]) will fail to put 'foo.in'
  # into $(DIST_COMMON).
  if (! $found_it)
    {
      return if defined $required_file_not_found{$fullfile};
      $required_file_not_found{$fullfile} = 1;
    }
  if ($dangling_sym && $add_missing)
    {
      unlink ($fullfile);
    }

my $trailer = '';
  my $trailer2 = '';
  my $suppress = 0;

# Only install missing files according to our desired
  # strictness level.
  my $message = "required file '$fullfile' not found";
  if ($add_missing)
    {
      if (-f "$libdir/$file")
        {
          $suppress = 1;

# Install the missing file.  Symlink if we
          # can, copy if we must.  Note: delete the file
          # first, in case it is a dangling symlink.
          $message = "installing '$fullfile'";

# The license file should not be volatile.
          if ($file eq "COPYING")
            {
              $message .= " using GNU General Public License v3 file";
              $trailer2 = "\n    Consider adding the COPYING file"
                        . " to the version control system"
                        . "\n    for your code, to avoid questions"
                        . " about which license your project uses";
            }

# Windows Perl will hang if we try to delete a
          # file that doesn't exist.
          unlink ($fullfile) if -f $fullfile;
          if ($symlink_exists && ! $copy_missing)
            {
              if (! symlink ("$libdir/$file", $fullfile)
                  || ! -e $fullfile)
                {
                  $suppress = 0;
                  $trailer = "; error while making link: $!";
                }
            }
          elsif (system ('cp', "$libdir/$file", $fullfile))
            {
              $suppress = 0;
              $trailer = "\n    error while copying";
            }
          set_dir_cache_file ($dir, $file);
        }
    }
  else
    {
      $trailer = "\n  'automake --add-missing' can install '$file'"
        if -f "$libdir/$file";
    }

# If --force-missing was specified, and we have
  # actually found the file, then do nothing.
  return
    if $found_it && $force_missing;

# If we couldn't install the file, but it is a target in
  # the Makefile, don't print anything.  This allows files
  # like README, AUTHORS, or THANKS to be generated.
  return
    if !$suppress && rule $file;

msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
}

# require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
# ---------------------------------------------------------------------
# Verify that the file must exist in $DIRECTORY, or install it.
# $MYSTRICT is the strictness level at which this file becomes required.
# Worker threads may queue up the action to be serialized by the master,
# if $QUEUE is true
sub require_file_internal
{
  my ($where, $mystrict, $dir, $queue, @files) = @_;

return
    unless $strictness >= $mystrict;

foreach my $file (@files)
    {
      push_required_file ($dir, $file, "$dir/$file");
      if ($queue)
        {
          queue_required_file_check_or_copy ($required_conf_file_queue,
                                             QUEUE_CONF_FILE, $relative_dir,
                                             $where, $mystrict, @files);
        }
      else
        {
          required_file_check_or_copy ($where, $dir, $file);
        }
    }
}

# require_file ($WHERE, $MYSTRICT, @FILES)
# ----------------------------------------
sub require_file
{
    my ($where, $mystrict, @files) = @_;
    require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
}

# require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
# ----------------------------------------------------------
sub require_file_with_macro
{
    my ($cond, $macro, $mystrict, @files) = @_;
    $macro = rvar ($macro) unless ref $macro;
    require_file ($macro->rdef ($cond)->location, $mystrict, @files);
}

# require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
# ---------------------------------------------------------------
# Require an AC_LIBSOURCEd file.  If AC_CONFIG_LIBOBJ_DIR was called, it
# must be in that directory.  Otherwise expect it in the current directory.
sub require_libsource_with_macro
{
    my ($cond, $macro, $mystrict, @files) = @_;
    $macro = rvar ($macro) unless ref $macro;
    if ($config_libobj_dir)
      {
	require_file_internal ($macro->rdef ($cond)->location, $mystrict,
			       $config_libobj_dir, 0, @files);
      }
    else
      {
	require_file ($macro->rdef ($cond)->location, $mystrict, @files);
      }
}

# queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
#                                    $MYSTRICT, @FILES)
# --------------------------------------------------------------
sub queue_required_file_check_or_copy
{
    my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
    my @serial_loc;
    if (ref $where)
      {
        @serial_loc = (QUEUE_LOCATION, $where->serialize ());
      }
    else
      {
        @serial_loc = (QUEUE_STRING, $where);
      }
    $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
}

# require_queued_file_check_or_copy ($QUEUE)
# ------------------------------------------
sub require_queued_file_check_or_copy
{
    my ($queue) = @_;
    my $where;
    my $dir = $queue->dequeue ();
    my $loc_key = $queue->dequeue ();
    if ($loc_key eq QUEUE_LOCATION)
      {
	$where = Automake::Location::deserialize ($queue);
      }
    elsif ($loc_key eq QUEUE_STRING)
      {
	$where = $queue->dequeue ();
      }
    else
      {
	prog_error "unexpected key $loc_key";
      }
    my $mystrict = $queue->dequeue ();
    my $nfiles = $queue->dequeue ();
    my @files;
    push @files, $queue->dequeue ()
      foreach (1 .. $nfiles);
    return
      unless $strictness >= $mystrict;
    foreach my $file (@files)
      {
        required_file_check_or_copy ($where, $config_aux_dir, $file);
      }
}

# require_conf_file ($WHERE, $MYSTRICT, @FILES)
# ---------------------------------------------
# Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
sub require_conf_file
{
    my ($where, $mystrict, @files) = @_;
    my $queue = defined $required_conf_file_queue ? 1 : 0;
    require_file_internal ($where, $mystrict, $config_aux_dir,
                           $queue, @files);
}

# require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
# ---------------------------------------------------------------
sub require_conf_file_with_macro
{
    my ($cond, $macro, $mystrict, @files) = @_;
    require_conf_file (rvar ($macro)->rdef ($cond)->location,
		       $mystrict, @files);
}

################################################################

# require_build_directory ($DIRECTORY)
# ------------------------------------
# Emit rules to create $DIRECTORY if needed, and return
# the file that any target requiring this directory should be made
# dependent upon.
# We don't want to emit the rule twice, and want to reuse it
# for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
sub require_build_directory
{
  my $directory = shift;

return $directory_map{$directory} if exists $directory_map{$directory};

my $cdir = File::Spec->canonpath ($directory);

if (exists $directory_map{$cdir})
    {
      my $stamp = $directory_map{$cdir};
      $directory_map{$directory} = $stamp;
      return $stamp;
    }

my $dirstamp = "$cdir/\$(am__dirstamp)";

$directory_map{$directory} = $dirstamp;
  $directory_map{$cdir} = $dirstamp;

# Set a variable for the dirstamp basename.
  define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
			  '$(am__leading_dot)dirstamp');

# Directory must be removed by 'make distclean'.
  $clean_files{$dirstamp} = DIST_CLEAN;

$output_rules .= ("$dirstamp:\n"
		    . "\t\@\$(MKDIR_P) $directory\n"
		    . "\t\@: > $dirstamp\n");

return $dirstamp;
}

# require_build_directory_maybe ($FILE)
# -------------------------------------
# If $FILE lies in a subdirectory, emit a rule to create this
# directory and return the file that $FILE should be made
# dependent upon.  Otherwise, just return the empty string.
sub require_build_directory_maybe
{
    my $file = shift;
    my $directory = dirname ($file);

if ($directory ne '.')
    {
	return require_build_directory ($directory);
    }
    else
    {
	return '';
    }
}

################################################################

# Push a list of files onto '@dist_common'.
sub push_dist_common
{
  prog_error "push_dist_common run after handle_dist"
    if $handle_dist_run;
  push @dist_common, @_;
}

################################################################

# generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
# ----------------------------------------------
# Generate a Makefile.in given the name of the corresponding Makefile and
# the name of the file output by config.status.
sub generate_makefile
{
  my ($makefile_am, $makefile_in) = @_;

# Reset all the Makefile.am related variables.
  initialize_per_input;

# AUTOMAKE_OPTIONS can contains -W flags to disable or enable
  # warnings for this file.  So hold any warning issued before
  # we have processed AUTOMAKE_OPTIONS.
  buffer_messages ('warning');

# $OUTPUT is encoded.  If it contains a ":" then the first element
  # is the real output file, and all remaining elements are input
  # files.  We don't scan or otherwise deal with these input files,
  # other than to mark them as dependencies.  See the subroutine
  # 'scan_autoconf_files' for details.
  my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});

$relative_dir = dirname ($makefile);

read_main_am_file ($makefile_am, $makefile_in);
  if (not handle_options)
    {
      # Process buffered warnings.
      flush_messages;
      # Fatal error.  Just return, so we can continue with next file.
      return;
    }
  # Process buffered warnings.
  flush_messages;

# There are a few install-related variables that you should not define.
  foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
    {
      my $v = var $var;
      if ($v)
	{
	  my $def = $v->def (TRUE);
	  prog_error "$var not defined in condition TRUE"
	    unless $def;
	  reject_var $var, "'$var' should not be defined"
	    if $def->owner != VAR_AUTOMAKE;
	}
    }

# Catch some obsolete variables.
  msg_var ('obsolete', 'INCLUDES',
	   "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
    if var ('INCLUDES');

# Must do this after reading .am file.
  define_variable ('subdir', $relative_dir, INTERNAL);

# If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
  # recursive rules are enabled.
  define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
    if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';

# Check first, because we might modify some state.
  check_gnu_standards;
  check_gnits_standards;

handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
  handle_gettext;

handle_targets;
  handle_libraries;
  handle_ltlibraries;
  handle_programs;
  handle_scripts;

handle_silent;

# These must be run after all the sources are scanned.  They use
  # variables defined by handle_libraries(), handle_ltlibraries(),
  # or handle_programs().
  handle_compile;
  handle_languages;
  handle_libtool;

# Variables used by distdir.am and tags.am.
  define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
  if (! option 'no-dist')
    {
      define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
    }

handle_texinfo;
  handle_emacs_lisp;
  handle_python;
  handle_java;
  handle_man_pages;
  handle_data;
  handle_headers;
  handle_subdirs;
  handle_user_recursion;
  handle_tags;
  handle_minor_options;
  # Must come after handle_programs so that %known_programs is up-to-date.
  handle_tests;

# This must come after most other rules.
  handle_dist;

handle_footer;
  do_check_merge_target;
  handle_all ($makefile);

# FIXME: Gross!
  my $have_lt1 = !!var("lib_LTLIBRARIES");
  my $have_lt2 = !!var("nobase_lib_LTLIBRARIES");
  for my $var (variables("PROGRAMS"), variables("LTLIBRARIES"))
    {
      if ($var->name eq "lib_LTLIBRARIES"
          || $var->name eq "nobase_lib_LTLIBRARIES"
          || substr($var->name, 0, 7) eq "noinst_")
        {
          next;
        }
      my $shortname = $var->name;
      $shortname =~ tr{_}{}d;
      if ($have_lt1)
        {
          $output_rules .= "install-$shortname: install-libLTLIBRARIES\n\n";
        }
      if ($have_lt2)
        {
          $output_rules .= "install-$shortname: install-nobase_libLTLIBRARIES\n\n";
        }
    }

handle_install;
  handle_clean ($makefile);
  handle_factored_dependencies;

# Comes last, because all the above procedures may have
  # defined or overridden variables.
  $output_vars .= output_variables;

check_typos;

if ($exit_code != 0)
    {
      verb "not writing $makefile_in because of earlier errors";
      return;
    }

my $am_relative_dir = dirname ($makefile_am);
  mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;

# We make sure that 'all:' is the first target.
  my $output =
    "$output_vars$output_all$output_header$output_rules$output_trailer";

# Decide whether we must update the output file or not.
  # We have to update in the following situations.
  #  * $force_generation is set.
  #  * any of the output dependencies is younger than the output
  #  * the contents of the output is different (this can happen
  #    if the project has been populated with a file listed in
  #    @common_files since the last run).
  # Output's dependencies are split in two sets:
  #  * dependencies which are also configure dependencies
  #    These do not change between each Makefile.am
  #  * other dependencies, specific to the Makefile.am being processed
  #    (such as the Makefile.am itself, or any Makefile fragment
  #    it includes).
  my $timestamp = mtime $makefile_in;
  if (! $force_generation
      && $configure_deps_greatest_timestamp < $timestamp
      && $output_deps_greatest_timestamp < $timestamp
      && $output eq contents ($makefile_in))
    {
      verb "$makefile_in unchanged";
      # No need to update.
      return;
    }

if (-e $makefile_in)
    {
      unlink ($makefile_in)
	or fatal "cannot remove $makefile_in: $!";
    }

my $gm_file = new Automake::XFile "> $makefile_in";
  verb "creating $makefile_in";
  print $gm_file $output;
}

################################################################

# Helper function for usage().
sub print_autodist_files
{
  my @lcomm = uniq (sort @_);

my @four;
  format USAGE_FORMAT =
  @<<<<<<<<<<<<<<<<   @<<<<<<<<<<<<<<<<   @<<<<<<<<<<<<<<<<   @<<<<<<<<<<<<<<<<
  $four[0],           $four[1],           $four[2],           $four[3]
.
  local $~ = "USAGE_FORMAT";

my $cols = 4;
  my $rows = int(@lcomm / $cols);
  my $rest = @lcomm % $cols;

if ($rest)
    {
      $rows++;
    }
  else
    {
      $rest = $cols;
    }

for (my $y = 0; $y < $rows; $y++)
    {
      @four = ("", "", "", "");
      for (my $x = 0; $x < $cols; $x++)
        {
          last if $y + 1 == $rows && $x == $rest;

my $idx = (($x > $rest)
               ?  ($rows * $rest + ($rows - 1) * ($x - $rest))
               : ($rows * $x));

$idx += $y;
          $four[$x] = $lcomm[$idx];
        }
      write;
    }
}

sub usage ()
{
    print "Usage: $0 [OPTION]... [Makefile]...

Generate Makefile.in for configure from Makefile.am.

Operation modes:
      --help               print this help, then exit
      --version            print version number, then exit
  -v, --verbose            verbosely list files processed
      --no-force           only update Makefile.in's that are out of date
  -W, --warnings=CATEGORY  report the warnings falling in CATEGORY

Dependency tracking:
  -i, --ignore-deps      disable dependency tracking code
      --include-deps     enable dependency tracking code

Flavors:
      --foreign          set strictness to foreign
      --gnits            set strictness to gnits
      --gnu              set strictness to gnu

Library files:
  -a, --add-missing      add missing standard files to package
      --libdir=DIR       set directory storing library files
      --print-libdir     print directory storing library files
  -c, --copy             with -a, copy missing files (default is symlink)
  -f, --force-missing    force update of standard files

";
    print Automake::ChannelDefs::usage (), "\n";

print "\nFiles automatically distributed if found " .
          "(always):\n";
    print_autodist_files @common_files;
    print "\nFiles automatically distributed if found " .
          "(as .md if needed):\n";
    print_autodist_files (map { "${_}[.md]" } @toplevelmd_ok);
    print "\nFiles automatically distributed if found " .
          "(under certain conditions):\n";
    print_autodist_files @common_sometimes, 'README-alpha[.md]';

print '
Report bugs to <bug-automake@gnu.org>.
GNU Automake home page: <https://www.gnu.org/software/automake/>.
General help using GNU software: <https://www.gnu.org/gethelp/>.
';

# --help always returns 0 per GNU standards.
    exit 0;
}

sub version ()
{
  print <<EOF;
automake (GNU $PACKAGE) $VERSION
Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
License GPLv2+: GNU GPL version 2 or later <https://gnu.org/licenses/gpl-2.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Tom Tromey <tromey\@redhat.com>
       and Alexandre Duret-Lutz <adl\@gnu.org>.
EOF
  # --version always returns 0 per GNU standards.
  exit 0;
}

################################################################

# Parse command line.
sub parse_arguments ()
{
  my $strict = 'gnu';
  my $ignore_deps = 0;
  my @warnings = ();

my %cli_options =
    (
     'version' => \&version,
     'help'    => \&usage,
     'libdir=s'	=> \$libdir,
     'print-libdir'     => sub { print "$libdir\n"; exit 0; },
     'gnu'		=> sub { $strict = 'gnu'; },
     'gnits'		=> sub { $strict = 'gnits'; },
     'foreign'		=> sub { $strict = 'foreign'; },
     'include-deps'	=> sub { $ignore_deps = 0; },
     'i|ignore-deps'	=> sub { $ignore_deps = 1; },
     'no-force'	=> sub { $force_generation = 0; },
     'f|force-missing'  => \$force_missing,
     'a|add-missing'	=> \$add_missing,
     'c|copy'		=> \$copy_missing,
     'v|verbose'	=> sub { setup_channel 'verb', silent => 0; },
     'W|warnings=s'     => \@warnings,
     );

use Automake::Getopt ();
  Automake::Getopt::parse_options %cli_options;

set_strictness ($strict);
  my $cli_where = new Automake::Location;
  set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
  parse_warnings @warnings;

return unless @ARGV;

my $errspec = 0;
  foreach my $arg (@ARGV)
    {
      fatal ("empty argument\nTry '$0 --help' for more information")
	if ($arg eq '');

# Handle $local:$input syntax.
      my ($local, @rest) = split (/:/, $arg);
      @rest = ("$local.in",) unless @rest;
      my $input = locate_am @rest;
      if ($input)
	{
	  push @input_files, $input;
	  $output_files{$input} = join (':', ($local, @rest));
	}
      else
	{
	  error "no Automake input file found for '$arg'";
	  $errspec = 1;
	}
    }
  fatal "no input file found among supplied arguments"
    if $errspec && ! @input_files;
}

# handle_makefile ($MAKEFILE)
# ---------------------------
sub handle_makefile
{
  my ($file) =  @_;
  ($am_file = $file) =~ s/\.in$//;
  if (! -f ($am_file . '.am'))
    {
      error "'$am_file.am' does not exist";
    }
  else
    {
      # Any warning setting now local to this Makefile.am.
      dup_channel_setup;

generate_makefile ($am_file . '.am', $file);

# Back out any warning setting.
      drop_channel_setup;
    }
}

# Deal with all makefiles, without threads.
sub handle_makefiles_serial ()
{
  foreach my $file (@input_files)
    {
      handle_makefile ($file);
    }
}

# Logic for deciding how many worker threads to use.
sub get_number_of_threads ()
{
  my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;

$nthreads = 0
    unless $nthreads =~ /^[0-9]+$/;

# It doesn't make sense to use more threads than makefiles,
  my $max_threads = @input_files;

if ($nthreads > $max_threads)
    {
      $nthreads = $max_threads;
    }
  return $nthreads;
}

# handle_makefiles_threaded ($NTHREADS)
# -------------------------------------
# Deal with all makefiles, using threads.  The general strategy is to
# spawn NTHREADS worker threads, dispatch makefiles to them, and let the
# worker threads push back everything that needs serialization:
# * warning and (normal) error messages, for stable stderr output
#   order and content (avoiding duplicates, for example),
# * races when installing aux files (and respective messages),
# * races when collecting aux files for distribution.
#
# The latter requires that the makefile that deals with the aux dir
# files be handled last, done by the master thread.
sub handle_makefiles_threaded
{
  my ($nthreads) = @_;

# The file queue distributes all makefiles, the message queues
  # collect all serializations needed for respective files.
  my $file_queue = Thread::Queue->new;
  my %msg_queues;
  foreach my $file (@input_files)
    {
      $msg_queues{$file} = Thread::Queue->new;
    }

verb "spawning $nthreads worker threads";
  my @threads = (1 .. $nthreads);
  foreach my $t (@threads)
    {
      $t = threads->new (sub
	{
	  while (my $file = $file_queue->dequeue)
	    {
	      verb "handling $file";
	      my $queue = $msg_queues{$file};
	      setup_channel_queue ($queue, QUEUE_MESSAGE);
	      $required_conf_file_queue = $queue;
	      handle_makefile ($file);
	      $queue->enqueue (undef);
	      setup_channel_queue (undef, undef);
	      $required_conf_file_queue = undef;
	    }
	  return $exit_code;
	});
    }

# Queue all makefiles.
  verb "queuing " . @input_files . " input files";
  $file_queue->enqueue (@input_files, (undef) x @threads);

# Collect and process serializations.
  foreach my $file (@input_files)
    {
      verb "dequeuing messages for " . $file;
      reset_local_duplicates ();
      my $queue = $msg_queues{$file};
      while (my $key = $queue->dequeue)
	{
	  if ($key eq QUEUE_MESSAGE)
	    {
	      pop_channel_queue ($queue);
	    }
	  elsif ($key eq QUEUE_CONF_FILE)
	    {
	      require_queued_file_check_or_copy ($queue);
	    }
	  else
	    {
	      prog_error "unexpected key $key";
	    }
	}
    }

foreach my $t (@threads)
    {
      my @exit_thread = $t->join;
      $exit_code = $exit_thread[0]
	if ($exit_thread[0] > $exit_code);
    }
}

################################################################

# Parse the WARNINGS environment variable.
parse_WARNINGS;

# Parse command line.
parse_arguments;

$configure_ac = require_configure_ac;

# Do configure.ac scan only once.
scan_autoconf_files;

if (! @input_files)
  {
    my $msg = '';
    $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
      if -f 'Makefile.am';
    fatal ("no 'Makefile.am' found for any configure output$msg");
  }

my $nthreads = get_number_of_threads ();

if ($perl_threads && $nthreads >= 1)
  {
    handle_makefiles_threaded ($nthreads);
  }
else
  {
    handle_makefiles_serial ();
  }

exit $exit_code;

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