diff options
Diffstat (limited to 'clang/tools')
| -rw-r--r-- | clang/tools/driver/CMakeLists.txt | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/clang/tools/driver/CMakeLists.txt b/clang/tools/driver/CMakeLists.txt index bb631db79c3..d8bdd702482 100644 --- a/clang/tools/driver/CMakeLists.txt +++ b/clang/tools/driver/CMakeLists.txt @@ -87,8 +87,24 @@ if (APPLE) set(TOOL_INFO_BUILD_VERSION) endif() -if(CLANG_ORDER_FILE AND EXISTS CLANG_ORDER_FILE) - target_link_libraries(clang "-Wl,-order_file,${CLANG_ORDER_FILE}") +if(CLANG_ORDER_FILE) + include(CMakePushCheckState) + + function(check_linker_flag flag out_var) + cmake_push_check_state() + set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${flag}") + check_cxx_compiler_flag("" ${out_var}) + cmake_pop_check_state() + endfunction() + + # This is a test to ensure the actual order file works with the linker. + check_linker_flag("-Wl,-order_file,${CLANG_ORDER_FILE}" + LINKER_ORDER_FILE_WORKS) + + if(LINKER_ORDER_FILE_WORKS) + target_link_libraries(clang "-Wl,-order_file,${CLANG_ORDER_FILE}") + set_target_properties(clang PROPERTIES LINK_DEPENDS ${CLANG_ORDER_FILE}) + endif() endif() if(WITH_POLLY AND LINK_POLLY_INTO_TOOLS) |
