Index: llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
===================================================================
--- llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
+++ llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
@@ -502,7 +502,6 @@
       # Disabled warnings.
       -wd4141 # Suppress ''modifier' : used more than once' (because of __forceinline combined with inline)
       -wd4146 # Suppress 'unary minus operator applied to unsigned type, result still unsigned'
-      -wd4180 # Suppress 'qualifier applied to function type has no meaning; ignored'
       -wd4244 # Suppress ''argument' : conversion from 'type1' to 'type2', possible loss of data'
       -wd4267 # Suppress ''var' : conversion from 'size_t' to 'type', possible loss of data'
       -wd4291 # Suppress ''declaration' : no matching operator delete found; memory will not be freed if initialization throws an exception'