Add #include "config.h" to headers that need it.

Originally committed as revision 12431 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavutil/bswap.h

@@ -27,6 +27,7 @@
 #define FFMPEG_BSWAP_H
 
 #include <stdint.h>
+#include "config.h"
 #include "common.h"
 
 #ifdef HAVE_BYTESWAP_H

libavutil/internal.h

@@ -105,6 +105,7 @@
 #    define PIC
 #endif
 
+#include "config.h"
 #include "intreadwrite.h"
 #include "bswap.h"
 

libavutil/intreadwrite.h

@@ -20,6 +20,7 @@
 #define FFMPEG_INTREADWRITE_H
 
 #include <stdint.h>
+#include "config.h"
 #include "bswap.h"
 
 #ifdef __GNUC__

libavutil/x86_cpu.h

@@ -21,6 +21,8 @@
 #ifndef FFMPEG_X86CPU_H
 #define FFMPEG_X86CPU_H
 
+#include "config.h"
+
 #ifdef ARCH_X86_64
 #    define REG_a "rax"
 #    define REG_b "rbx"