[llvm] r309235 - [CMake] Disable -Werror for CMake checks

[Petr Hosek via llvm-commits]

Author: phosek
Date: Wed Jul 26 16:49:18 2017
New Revision: 309235

URL: http://llvm.org/viewvc/llvm-project?rev=309235&view=rev
Log:
[CMake] Disable -Werror for CMake checks

-Werror may cause some of the CMake checks to fail, so we disable
it even if it's enabled for the build itself.

Differential Revision: https://reviews.llvm.org/D35924

Modified:
    llvm/trunk/cmake/modules/HandleLLVMOptions.cmake

Modified: llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/modules/HandleLLVMOptions.cmake?rev=309235&r1=309234&r2=309235&view=diff
==============================================================================
--- llvm/trunk/cmake/modules/HandleLLVMOptions.cmake (original)
+++ llvm/trunk/cmake/modules/HandleLLVMOptions.cmake Wed Jul 26 16:49:18 2017
@@ -381,6 +381,7 @@ if( MSVC )
 
 elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
   append_if(LLVM_ENABLE_WERROR "-Werror" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+  append_if(LLVM_ENABLE_WERROR "-Wno-error" CMAKE_REQUIRED_FLAGS)
   add_flag_if_supported("-Werror=date-time" WERROR_DATE_TIME)
   if (LLVM_ENABLE_CXX1Y)
     check_cxx_compiler_flag("-std=c++1y" CXX_SUPPORTS_CXX1Y)