| set(CMAKE_DL_LIBS "") | |
| set(CMAKE_C_COMPILE_OPTIONS_PIC "-fPIC") | |
| set(CMAKE_C_COMPILE_OPTIONS_PIE "-fPIE") | |
| # PIE link options are managed in Compiler/<compiler>.cmake file | |
| set(CMAKE_SHARED_LIBRARY_C_FLAGS "-fPIC") # -pic | |
| set(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-shared") # -shared | |
| set(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "") # +s, flag for exe link to use shared lib | |
| set(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,") # -rpath | |
| set(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP ":") # : or empty | |
| set(CMAKE_SHARED_LIBRARY_RPATH_ORIGIN_TOKEN "\$ORIGIN") | |
| set(CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG "-Wl,-rpath-link,") | |
| set(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,") | |
| set(CMAKE_EXE_EXPORTS_C_FLAG "-Wl,--export-dynamic") | |
| # Features for LINK_LIBRARY generator expression | |
| ## check linker capabilities | |
| if(NOT DEFINED _CMAKE_LINKER_PUSHPOP_STATE_SUPPORTED) | |
| execute_process(COMMAND "${CMAKE_LINKER}" --help | |
| OUTPUT_VARIABLE __linker_help | |
| ERROR_VARIABLE __linker_help) | |
| if(__linker_help MATCHES "--push-state" AND __linker_help MATCHES "--pop-state") | |
| set(_CMAKE_LINKER_PUSHPOP_STATE_SUPPORTED TRUE CACHE INTERNAL "linker supports push/pop state") | |
| else() | |
| set(_CMAKE_LINKER_PUSHPOP_STATE_SUPPORTED FALSE CACHE INTERNAL "linker supports push/pop state") | |
| endif() | |
| unset(__linker_help) | |
| endif() | |
| ## WHOLE_ARCHIVE: Force loading all members of an archive | |
| if(_CMAKE_LINKER_PUSHPOP_STATE_SUPPORTED) | |
| set(CMAKE_LINK_LIBRARY_USING_WHOLE_ARCHIVE "LINKER:--push-state,--whole-archive" | |
| "<LINK_ITEM>" | |
| "LINKER:--pop-state") | |
| else() | |
| set(CMAKE_LINK_LIBRARY_USING_WHOLE_ARCHIVE "LINKER:--whole-archive" | |
| "<LINK_ITEM>" | |
| "LINKER:--no-whole-archive") | |
| endif() | |
| set(CMAKE_LINK_LIBRARY_USING_WHOLE_ARCHIVE_SUPPORTED TRUE) | |
| # Features for LINK_GROUP generator expression | |
| ## RESCAN: request the linker to rescan static libraries until there is | |
| ## no pending undefined symbols | |
| set(CMAKE_LINK_GROUP_USING_RESCAN "LINKER:--start-group" "LINKER:--end-group") | |
| set(CMAKE_LINK_GROUP_USING_RESCAN_SUPPORTED TRUE) | |
| include(Platform/UnixPaths) |