LLVM_BUILD_32_BITS: Add -m32 with CMAKE_C*_FLAGS. [CMP0056]
With CMP0056, try_compile() uses also CMAKE_EXE_LINKER_FLAG.
It caused mismatch between CMAKE_CXX_FLAGS and CMAKE_EXE_LINKER_FLAGS, to fail to examine CXX_SUPPORTS_CXX11 with -m32.
FYI, before this, try_compile() tries without -m32 regardless of LLVM_BUILD_32_BITS.
llvm-svn: 271871
diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
index 75918cf..64269c3 100644
--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -166,7 +166,8 @@
# TODO: support other platforms and toolchains.
if( LLVM_BUILD_32_BITS )
message(STATUS "Building 32 bits executables and libraries.")
- add_llvm_definitions( -m32 )
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -m32")
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -m32")