Copied some flags from the Makefile build to the list of GCC flags.

This removes a lot of warnings.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116545 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -49,7 +49,7 @@ configure_file(
 if (CMAKE_COMPILER_IS_GNUCXX)
   # FIXME: Turn off exceptions, RTTI:
   # -fno-exceptions -fno-rtti
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings")
 endif ()
 
 if (APPLE)