commit cdfccccb1ea3e050b07dc59f87e214ee979da2ae
author Andrew Scull <ascull@google.com> Fri Oct 05 20:58:37 2018 +0100
committer Andrew Scull <ascull@google.com> Fri Oct 05 21:44:43 2018 +0100
tree 819b945b890b8bfabe7e3c6e29c75e0dba88961d
parent 5e1ddfae19f7052e9e27b1bf2c2d8ea3c9bcf5b0

Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2

linux-x64/clang/lib64/cmake/llvm/HandleLLVMStdlib.cmake

diff --git a/linux-x64/clang/lib64/cmake/llvm/HandleLLVMStdlib.cmake b/linux-x64/clang/lib64/cmake/llvm/HandleLLVMStdlib.cmake
index c0512ac..a0706d8 100644
--- a/linux-x64/clang/lib64/cmake/llvm/HandleLLVMStdlib.cmake
+++ b/linux-x64/clang/lib64/cmake/llvm/HandleLLVMStdlib.cmake
@@ -13,10 +13,12 @@
   endfunction()
 
   include(CheckCXXCompilerFlag)
+  include(CheckLinkerFlag)
   if(LLVM_ENABLE_LIBCXX)
     if(LLVM_COMPILER_IS_GCC_COMPATIBLE)
-      check_cxx_compiler_flag("-stdlib=libc++" CXX_SUPPORTS_STDLIB)
-      if(CXX_SUPPORTS_STDLIB)
+      check_cxx_compiler_flag("-stdlib=libc++" CXX_COMPILER_SUPPORTS_STDLIB)
+      check_linker_flag("-stdlib=libc++" CXX_LINKER_SUPPORTS_STDLIB)
+      if(CXX_COMPILER_SUPPORTS_STDLIB AND CXX_LINKER_SUPPORTS_STDLIB)
         append("-stdlib=libc++"
           CMAKE_CXX_FLAGS CMAKE_EXE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS
           CMAKE_MODULE_LINKER_FLAGS)