msvc: Disable warnings in header file

Remove clutter from the CMakeLists file by disabling the warnings
programatically.

CMakeLists.txt

@@ -53,7 +53,7 @@ OPTION (BUILD_CLAY "Build Tests using the Clay suite" ON)
 
 # Platform specific compilation flags
 IF (MSVC)
-	SET(CMAKE_C_FLAGS "/W4 /WX /nologo /Zi /wd4127")
+	SET(CMAKE_C_FLAGS "/W4 /nologo /Zi")
 	IF (STDCALL)
 	  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /Gz")
 	ENDIF ()

src/win32/msvc-compat.h

@@ -9,6 +9,16 @@
 
 #if defined(_MSC_VER)
 
+/*
+ * Disable silly MSVC warnings
+ */
+
+/* conditional expression is constant */
+#pragma warning(disable: 4127) 
+
+/* nonstandard extension used : bit field types other than int */
+#pragma warning(disable: 4214)
+
 /* access() mode parameter #defines	*/
 # define F_OK 0 /* existence check */
 # define W_OK 2 /* write mode check */