lavu: add missing stddef.h includes for size_t.

libavutil/hash.c

@@ -17,6 +17,8 @@
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
+
+#include <stddef.h>
 #include <stdint.h>
 #include "hash.h"
 

libavutil/hash.h

@@ -27,6 +27,7 @@
 #ifndef AVUTIL_HASH_H
 #define AVUTIL_HASH_H
 
+#include <stddef.h>
 #include <stdint.h>
 
 #include "version.h"

libavutil/murmur3.c

@@ -17,6 +17,8 @@
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
+
+#include <stddef.h>
 #include <stdint.h>
 #include "mem.h"
 #include "intreadwrite.h"

libavutil/murmur3.h

@@ -27,6 +27,7 @@
 #ifndef AVUTIL_MURMUR3_H
 #define AVUTIL_MURMUR3_H
 
+#include <stddef.h>
 #include <stdint.h>
 
 #include "version.h"

libavutil/ripemd.c

@@ -19,6 +19,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include <stddef.h>
 #include <string.h>
 
 #include "attributes.h"

libavutil/ripemd.h

@@ -28,6 +28,7 @@
 #ifndef AVUTIL_RIPEMD_H
 #define AVUTIL_RIPEMD_H
 
+#include <stddef.h>
 #include <stdint.h>
 
 #include "attributes.h"