FM / features

/usr/share/boost-build/src/tools/features/

/usr/share/boost-build/src/tools/features

Name	Size	Mode	Actions
address-model-feature.jam	695	0644	edit dl rm
allow-feature.jam	512	0644	edit dl rm
architecture-feature.jam	1222	0644	edit dl rm
archiveflags-feature.jam	447	0644	edit dl rm
asmflags-feature.jam	400	0644	edit dl rm
build-feature.jam	626	0644	edit dl rm
cflags-feature.jam	691	0644	edit dl rm
conditional-feature.jam	728	0644	edit dl rm
coverage-feature.jam	609	0644	edit dl rm
cxx-template-depth-feature.jam	1427	0644	edit dl rm
cxxabi-feature.jam	407	0644	edit dl rm
cxxflags-feature.jam	374	0644	edit dl rm
cxxstd-feature.jam	1667	0644	edit dl rm
debug-feature.jam	936	0644	edit dl rm
define-feature.jam	708	0644	edit dl rm
dependency-feature.jam	2035	0644	edit dl rm
dll-feature.jam	2218	0644	edit dl rm
exception-feature.jam	1009	0644	edit dl rm
fflags-feature.jam	420	0644	edit dl rm
file-feature.jam	482	0644	edit dl rm
find-lib-feature.jam	1073	0644	edit dl rm
flags-feature.jam	492	0644	edit dl rm
force-include-feature.jam	572	0644	edit dl rm
include-feature.jam	434	0644	edit dl rm
instruction-set-feature.jam	2494	0644	edit dl rm
internal-feature.jam	440	0644	edit dl rm
library-feature.jam	708	0644	edit dl rm
link-feature.jam	406	0644	edit dl rm
linkflags-feature.jam	377	0644	edit dl rm
local-visibility-feature.jam	984	0644	edit dl rm
location-feature.jam	453	0644	edit dl rm
location-prefix-feature.jam	505	0644	edit dl rm
lto-feature.jam	1309	0644	edit dl rm
name-feature.jam	632	0644	edit dl rm
objcflags-feature.jam	657	0644	edit dl rm
optimization-feature.jam	939	0644	edit dl rm
os-feature.jam	3687	0644	edit dl rm
relevant-feature.jam	1992	0644	edit dl rm
rtti-feature.jam	395	0644	edit dl rm
runtime-feature.jam	1290	0644	edit dl rm
sanitizers-feature.jam	1716	0644	edit dl rm
search-feature.jam	516	0644	edit dl rm
source-feature.jam	753	0644	edit dl rm
stdlib-feature.jam	976	0644	edit dl rm
strip-feature.jam	616	0644	edit dl rm
tag-feature.jam	1174	0644	edit dl rm
threadapi-feature.jam	1162	0644	edit dl rm
threading-feature.jam	775	0644	edit dl rm
toolset-feature.jam	528	0644	edit dl rm
translate-path-feature.jam	944	0644	edit dl rm
user-interface-feature.jam	952	0644	edit dl rm
variant-feature.jam	3300	0644	edit dl rm
version-feature.jam	480	0644	edit dl rm
visibility-feature.jam	1987	0644	edit dl rm
warnings-feature.jam	1034	0644	edit dl rm
__init_features__.jam	743	0644	edit dl rm

Edit: /usr/share/boost-build/src/tools/features/visibility-feature.jam (1987B)

# Copyright 2018 Andrey Semashev
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)

import feature ;

#| tag::doc[]

[[bbv2.builtin.features.visibility]]`visibility`::
*Allowed values:* `global`, `protected`, `hidden`.
+
Specifies the default symbol visibility in compiled binaries. Not all values
are supported on all platforms and on some platforms (for example, Windows)
symbol visibility is not supported at all.
+
The supported values have the following meaning:
+
`global`::: a.k.a. "default" in gcc documentation. Global symbols are
  considered public, they are exported from shared libraries and can be
  redefined by another shared library or executable.
`protected`::: a.k.a. "symbolic". Protected symbols are exported from shared
  ibraries but cannot be redefined by another shared library or executable.
  This mode is not supported on some platforms, for example OS X.
`hidden`::: Hidden symbols are not exported from shared libraries and cannot
  be redefined by a different shared library or executable loaded in a process.
  In this mode, public symbols have to be explicitly marked in the source code
  to be exported from shared libraries. This is the recommended mode.
+
By default compiler default visibility mode is used (no compiler flags are
added).
+
NOTE: In Boost super-project Jamroot file this property is set to the default
value of `hidden`. This means that Boost libraries are built with hidden
visibility by default, unless the user overrides it with a different
`visibility` or a library sets a different `local-visibility` (see below).

|# # end::doc[]

feature.feature visibility
    : global protected hidden
    : optional composite propagated ;

feature.compose <visibility>global : <local-visibility>global ;
feature.compose <visibility>protected : <local-visibility>protected ;
feature.compose <visibility>hidden : <local-visibility>hidden ;

cmd: