Pass -fcolor-diagnostics when it is supported. This makes a difference when

using cmake+ninja, since ninja buffers the compiler output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156150 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index d10e59a09729f3b88d368f43fa19e5b0f1c1a68e..da31cc4c8dd069f30d3a76ee0b9124cddd31a1bc 100644 (file)
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -190,6 +190,10 @@ elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
     if( SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG )
       add_llvm_definitions( -Wcovered-switch-default )
     endif()
+    check_cxx_compiler_flag("-Werror -fcolor-diagnostics" SUPPORTS_FCOLOR_DIAGNOSTICS_FLAG)
+    if( SUPPORTS_FCOLOR_DIAGNOSTICS_FLAG )
+      add_llvm_definitions( -fcolor-diagnostics )
+    endif()
   endif (LLVM_ENABLE_WARNINGS)
   if (LLVM_ENABLE_WERROR)
     add_llvm_definitions( -Werror )