Small tweak to phsysf for Snow Leopard compatibility

git-svn-id: http://svn.net-core.org/repos/t-engine4@696 51575b47-30f0-44d4-a5cc-537603b46e54

src/physfs/physfs_platforms.h

@@ -28,7 +28,7 @@
 #elif ((defined __MACH__) && (defined __APPLE__))
 /* To check if iphone or not, we need to include this file */
 # include <TargetConditionals.h> 
-# if (defined(TARGET_IPHONE_SIMULATOR) || (defined TARGET_OS_IPHONE))
+# if (TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE)
 #    define PHYSFS_PLATFORM_UNIX
 #    define PHYSFS_PLATFORM_POSIX
 #    define PHYSFS_NO_CDROM_SUPPORT