FGCOM/jansson
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

use --version-script in case of linkers that does not support --default-symver

Browse Source
This commit is contained in:
tpgxyz 2021-02-16 15:44:13 +01:00 committed by Petri Lehtinen
parent 2de2c3d5fc
commit 0dffb4284e
1 changed files with 35 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
CMakeLists.txt
View File

@ -57,9 +57,6 @@ if (HAS_NO_FORMAT_TRUNCATION)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-format-truncation")
endif()
include (CheckSymbolExists)
check_symbol_exists("__GLIBC__" "stdlib.h" LIBC_IS_GLIBC)
if (MSVC)
# Turn off Microsofts "security" warnings.
add_definitions( "/W3 /D_CRT_SECURE_NO_WARNINGS /wd4005 /wd4996 /nologo" )
@ -311,8 +308,42 @@ if(JANSSON_BUILD_SHARED_LIBS)
${JANSSON_HDR_PUBLIC}
src/jansson.def)
if (LIBC_IS_GLIBC)
# check if linker support --default-symver
list(APPEND CMAKE_REQUIRED_LIBRARIES "-Wl,--default-symver")
check_c_source_compiles(
"
int main (void)
{
return 0;
}
"
DSYMVER_WORKS
)
list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES "-Wl,--default-symver")
if (SYMVER_WORKS)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--default-symver")
else()
# some linkers may only support --version-script
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/jansson.sym" "libjansson.so.${JANSSON_SOVERSION} {
global:
*;
};
")
list(APPEND CMAKE_REQUIRED_LIBRARIES "-Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/jansson.sym")
check_c_source_compiles(
"
int main (void)
{
return 0;
}
"
VSCRIPT_WORKS
)
list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES "-Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/jansson.sym")
if (SYMVER_WORKS)
set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/jansson.sym")
endif()
endif()
set_target_properties(jansson PROPERTIES