From 83ebf501cdfdb21a8b111dcaf32481bc021094f0 Mon Sep 17 00:00:00 2001 From: Sergey Sharybin Date: Wed, 2 Nov 2016 10:42:15 +0100 Subject: [PATCH] CMake: Make ld.gold linker optional Some platforms are having hard time using this linker so added an option to not use it. The options is an advanced one and enabled by default so should not cause any changes for current users. --- CMakeLists.txt | 6 ++++++ .../cmake/platform/platform_unix.cmake | 21 ++++++++++--------- 2 files changed, 17 insertions(+), 10 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index fe226dd769b..bbab208409b 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -508,6 +508,12 @@ mark_as_advanced(WITH_C11) option(WITH_CXX11 "Build with C++11 standard enabled, for development use only!" ${_cxx11_init}) mark_as_advanced(WITH_CXX11) +# Compiler toolchain +if(CMAKE_COMPILER_IS_GNUCC) + option(WITH_LINKER_GOLD "Use ld.gold linker which is usually faster than ld.bfd" ON) + mark_as_advanced(WITH_LINKER_GOLD) +endif() + # Dependency graph option(WITH_LEGACY_DEPSGRAPH "Build Blender with legacy dependency graph" ON) mark_as_advanced(WITH_LEGACY_DEPSGRAPH) diff --git a/build_files/cmake/platform/platform_unix.cmake b/build_files/cmake/platform/platform_unix.cmake index e33141f8012..62e0caa7c43 100644 --- a/build_files/cmake/platform/platform_unix.cmake +++ b/build_files/cmake/platform/platform_unix.cmake @@ -384,17 +384,18 @@ add_definitions(-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE if(CMAKE_COMPILER_IS_GNUCC) set(PLATFORM_CFLAGS "-pipe -fPIC -funsigned-char -fno-strict-aliasing") - # use ld.gold linker if available, could make optional - execute_process( - COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version - ERROR_QUIET OUTPUT_VARIABLE LD_VERSION) - if("${LD_VERSION}" MATCHES "GNU gold") - set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fuse-ld=gold") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-ld=gold") - else() - message(STATUS "GNU gold linker isn't available, using the default system linker.") + if(WITH_LINKER_GOLD) + execute_process( + COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version + ERROR_QUIET OUTPUT_VARIABLE LD_VERSION) + if("${LD_VERSION}" MATCHES "GNU gold") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fuse-ld=gold") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-ld=gold") + else() + message(STATUS "GNU gold linker isn't available, using the default system linker.") + endif() + unset(LD_VERSION) endif() - unset(LD_VERSION) # CLang is the same as GCC for now. elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")