Bug 951587 - Only specify that CTypes.cpp won't be part of a PGO build in configurations that actually build it; r=gps

--HG--
extra : rebase_source : 6d6af5c97768092343603140a969271d770a35d2

js/src/moz.build

@@ -428,5 +428,5 @@ if CONFIG['MOZ_LINKER']:
 if CONFIG['_MSC_VER']:
     if CONFIG['CPU_ARCH'] == 'x86':
         SOURCES['builtin/RegExp.cpp'].no_pgo = True # Bug 772303
-    elif CONFIG['CPU_ARCH'] == 'x86_64':
+    elif CONFIG['CPU_ARCH'] == 'x86_64' and CONFIG['JS_HAS_CTYPES']:
         SOURCES['ctypes/CTypes.cpp'].no_pgo = True # Bug 810661