mirror of
https://github.com/irungentoo/toxcore.git
synced 2024-03-22 13:30:51 +08:00
f2b6090eca
This library contains all the code for the old libtoxcore, libtoxav, libtoxdns, and libtoxencryptsave. The build for toxav is still optional, and disabling it causes libtoxcore to simply not contain those symbols and the pkg-config file to not include opus and vpx as dependencies.
55 lines
1.7 KiB
CMake
55 lines
1.7 KiB
CMake
################################################################################
|
|
#
|
|
# :: Strict ABI
|
|
#
|
|
# Enabling the STRICT_ABI flag will generate and use an LD version script.
|
|
# It ensures that the dynamic libraries (libtoxcore.so, libtoxav.so) only
|
|
# export the symbols that are defined in their public API (tox.h and toxav.h,
|
|
# respectively).
|
|
#
|
|
################################################################################
|
|
|
|
find_program(SHELL NAMES sh dash bash zsh fish)
|
|
|
|
macro(make_version_script)
|
|
if(STRICT_ABI AND SHELL AND ENABLE_SHARED)
|
|
_make_version_script(${ARGN})
|
|
endif()
|
|
endmacro()
|
|
|
|
function(_make_version_script target)
|
|
set(${target}_VERSION_SCRIPT "${CMAKE_BINARY_DIR}/${target}.ld")
|
|
|
|
file(WRITE ${${target}_VERSION_SCRIPT}
|
|
"{ global:\n")
|
|
|
|
foreach(sublib ${ARGN})
|
|
string(REPLACE "^" ";" sublib ${sublib})
|
|
list(GET sublib 0 header)
|
|
list(GET sublib 1 ns)
|
|
|
|
execute_process(
|
|
COMMAND ${SHELL} -c "egrep '^\\w' ${header} | grep '${ns}_[a-z0-9_]*(' | grep -v '^typedef' | grep -o '${ns}_[a-z0-9_]*(' | egrep -o '\\w+' | sort -u"
|
|
OUTPUT_VARIABLE sublib_SYMS
|
|
OUTPUT_STRIP_TRAILING_WHITESPACE)
|
|
string(REPLACE "\n" ";" sublib_SYMS ${sublib_SYMS})
|
|
|
|
foreach(sym ${sublib_SYMS})
|
|
file(APPEND ${${target}_VERSION_SCRIPT}
|
|
"${sym};\n")
|
|
endforeach(sym)
|
|
endforeach(sublib)
|
|
|
|
file(APPEND ${${target}_VERSION_SCRIPT}
|
|
"local: *; };\n")
|
|
|
|
set_target_properties(${target}_shared PROPERTIES
|
|
LINK_FLAGS -Wl,--version-script,${${target}_VERSION_SCRIPT})
|
|
endfunction()
|
|
|
|
option(STRICT_ABI "Enforce strict ABI export in dynamic libraries" OFF)
|
|
if(WIN32 OR APPLE)
|
|
# Windows and OSX don't have this linker functionality.
|
|
set(STRICT_ABI OFF)
|
|
endif()
|