Add Common::AtomicDecrement for gcc to match win32.

Use the debug option for conf.CheckWXConfig on OS X as on Unix.

Take care of a few compiler warnings.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6084 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoSoftware/Src/main.cpp

@@ -223,4 +223,4 @@ bool Video_IsFifoBusy(void)
 
 void Video_AbortFrame(void)
 {
-}
+}