cmake: don't set LLVM_COMPILER_IS_GCC_COMPATIBLE when using clang-cl

Tip-of-tree CMake has become clang-cl aware [1]. In this case,
CMAKE_CXX_COMPILER_ID will still be Clang, but MSVC will be true.

[1] See http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=3d8356d4

llvm-svn: 192139

diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
index 4d56438..2cec270 100644 (file)
--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -8,6 +8,8 @@ include(CheckCXXCompilerFlag)
 
 if( CMAKE_COMPILER_IS_GNUCXX )
   set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
+elseif( MSVC )
+  set(LLVM_COMPILER_IS_GCC_COMPATIBLE OFF)
 elseif( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
   set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
 endif()