SPU2Null: Fix the release version.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2468 96395faa-99c1-11dd-bbfe-3dabce05a288

common/include/PS2Eext.h

@@ -224,6 +224,8 @@ static void __forceinline PluginNullAbout(const char *aboutText)
 
 #else
 
+#define usleep(x)	Sleep(x / 1000)
+
 static void __forceinline SysMessage(const char *fmt, ...)
 {
     va_list list;

plugins/SPU2null/Linux/SPU2null.cbp

@@ -29,6 +29,9 @@
 				<Option createStaticLib="1" />
 				<Compiler>
 					<Add option="-O2" />
+					<Add directory="../Linux" />
+					<Add directory="../../SPU2null" />
+					<Add directory="../../../common/include" />
 				</Compiler>
 				<Linker>
 					<Add option="-s" />