Don't include stddef without checking for it.

include/vlc_common.h

@@ -102,18 +102,6 @@ typedef uint8_t                 byte_t;
 #define INT64_MAX (9223372036854775807LL)
 #endif
 
-/* ptrdiff_t definition */
-#ifdef HAVE_STDDEF_H
-#   include <stddef.h>
-#else
-#   include <malloc.h>
-#   ifndef _PTRDIFF_T
-#       define _PTRDIFF_T
-/* Not portable in a 64-bit environment. */
-typedef int                 ptrdiff_t;
-#   endif
-#endif
-
 #if defined( WIN32 ) || defined( UNDER_CE )
 #   include <malloc.h>
 #   ifndef PATH_MAX

modules/access/vcdx/demux.c

@@ -29,6 +29,7 @@
 # include "config.h"
 #endif
 
+#include <stddef.h>
 #include <vlc/vlc.h>
 #include <vlc_input.h>
 #include <vlc_access.h>

modules/audio_mixer/float32.c

@@ -29,6 +29,7 @@
 # include "config.h"
 #endif
 
+#include <stddef.h>
 #include <vlc/vlc.h>
 #include <vlc_aout.h>
 

modules/audio_mixer/trivial.c

@@ -29,6 +29,7 @@
 # include "config.h"
 #endif
 
+#include <stddef.h>
 #include <vlc/vlc.h>
 #include <vlc_aout.h>
 

src/audio_output/mixer.c

@@ -28,6 +28,7 @@
 # include "config.h"
 #endif
 
+#include <stddef.h>
 #include <vlc/vlc.h>
 
 #ifdef HAVE_ALLOCA_H