diff --git a/Makefile b/Makefile
index f72bbe42b003175192fb2d68e14d23320a7e617e..4432e78524b72c649e289f109511575aeb2d6f13 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ VPATH=$(SRC_PATH_BARE)
 
 CFLAGS=$(OPTFLAGS) -I$(BUILD_ROOT) -I$(SRC_PATH) -I$(SRC_PATH)/libavutil \
        -I$(SRC_PATH)/libavcodec -I$(SRC_PATH)/libavformat -I$(SRC_PATH)/libswscale \
-       -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_ISOC9X_SOURCE
+       -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_ISOC9X_SOURCE -DHAVE_AV_CONFIG_H
 LDFLAGS+= -g
 
 PROGS-$(CONFIG_FFMPEG)   += ffmpeg
diff --git a/cmdutils.c b/cmdutils.c
index 1a114aec9f55267b84360687ca5a8ec6862a2f9a..171574c014ca2751dc47440496b4c55a32113876 100644
--- a/cmdutils.c
+++ b/cmdutils.c
@@ -18,7 +18,7 @@
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
-#define HAVE_AV_CONFIG_H
+
 #include "avformat.h"
 #include "cmdutils.h"
 
diff --git a/ffmpeg.c b/ffmpeg.c
index c364b119274c08d95ba43e990340d855f4d27fd4..cc97ce6a5ba41ce8342f06fc404fa8898ec412f6 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -18,7 +18,7 @@
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
-#define HAVE_AV_CONFIG_H
+
 #include <signal.h>
 #include <limits.h>
 #include "avformat.h"
diff --git a/ffplay.c b/ffplay.c
index 23917ac1c0d9ca44d0c216c5e38e39ebe08d4b4e..304eadc83d324f756fd6bb05ec9c499af68d141d 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -18,7 +18,7 @@
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
-#define HAVE_AV_CONFIG_H
+
 #include "avformat.h"
 #include "swscale.h"
 
diff --git a/ffserver.c b/ffserver.c
index 8f9bba6b49c9cc610ab4519eed21d2948d4a9591..14c77cc0367c4ac881f122c3fe8fffad4d4b8f37 100644
--- a/ffserver.c
+++ b/ffserver.c
@@ -18,7 +18,7 @@
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
-#define HAVE_AV_CONFIG_H
+
 #include "avformat.h"
 
 #include <stdarg.h>
diff --git a/output_example.c b/output_example.c
index ca12b783f1ae360ddea349f28cd2e85370cef846..39866d892b7c005d3ca72f07fb02c8f695b48ac3 100644
--- a/output_example.c
+++ b/output_example.c
@@ -34,6 +34,8 @@
 #include "avformat.h"
 #include "swscale.h"
 
+#undef exit
+
 /* 5 seconds stream duration */
 #define STREAM_DURATION   5.0
 #define STREAM_FRAME_RATE 25 /* 25 images/s */