mtime: ifdef vs if defined()

misc/mtime.c:59:18: warning: extra tokens at end of #ifdef directive
Grah, sorry about this, Apple parser doesn't see this as a problem, but other platforms do of course.
(cherry picked from commit 7d391a6d)
Signed-off-by: Derk-Jan Hartman <hartman@videolan.org>

src/misc/mtime.c

@@ -56,7 +56,7 @@
 #   include <sys/time.h>
 #endif
 
-#ifdef __APPLE__ && && !defined(__powerpc__) && !defined(__ppc__) && !defined(__ppc64__)
+#if defines(__APPLE__) && && !defined(__powerpc__) && !defined(__ppc__) && !defined(__ppc64__)
 #define USE_APPLE_MACH 1
 #   include <mach/mach.h>
 #   include <mach/mach_time.h>