[PATCH] D39274: Fix -fuse-ld feature detection error.
Rui Ueyama via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 30 14:20:26 PDT 2017
This revision was automatically updated to reflect the committed changes.
Closed by commit rL316958: Fix -fuse-ld feature detection error. (authored by ruiu).
Changed prior to commit:
https://reviews.llvm.org/D39274?vs=120174&id=120889#toc
Repository:
rL LLVM
https://reviews.llvm.org/D39274
Files:
llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
Index: llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
===================================================================
--- llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
+++ llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
@@ -194,10 +194,13 @@
endif()
if( LLVM_USE_LINKER )
- check_cxx_compiler_flag("-fuse-ld=${LLVM_USE_LINKER}" CXX_SUPPORTS_CUSTOM_LINKER)
+ set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
+ set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -fuse-ld=${LLVM_USE_LINKER}")
+ check_cxx_source_compiles("int main() { return 0; }" CXX_SUPPORTS_CUSTOM_LINKER)
if ( NOT CXX_SUPPORTS_CUSTOM_LINKER )
message(FATAL_ERROR "Host compiler does not support '-fuse-ld=${LLVM_USE_LINKER}'")
endif()
+ set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
append("-fuse-ld=${LLVM_USE_LINKER}"
CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
endif()
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