diff --git a/libav/Makefile b/libav/Makefile
index 80dfd389c9..17e4469114 100644
--- a/libav/Makefile
+++ b/libav/Makefile
@@ -4,12 +4,16 @@ CFLAGS= $(OPTFLAGS) -Wall -g -I../libavcodec -DHAVE_AV_CONFIG_H
 OBJS= rm.o mpeg.o asf.o avienc.o jpeg.o swf.o wav.o raw.o \
 	 avidec.o ffm.o \
 	 avio.o aviobuf.o utils.o \
-	 udp.o http.o file.o img.o
+	 file.o img.o
 
 ifeq ($(CONFIG_GRAB),yes)
 OBJS+= grab.o audio.o 
 endif
 
+ifneq ($(CONFIG_WIN32),yes)
+OBJS+= udp.o http.o
+endif
+
 LIB= libav.a
 
 all: $(LIB)
diff --git a/libav/avio.c b/libav/avio.c
index 5e16456a80..c3d9961db7 100644
--- a/libav/avio.c
+++ b/libav/avio.c
@@ -45,7 +45,8 @@ int url_open(URLContext **puc, const char *filename, int flags)
             *q++ = *p;
         p++;
     }
-    if (*p == '\0') {
+    /* if the protocol has length 1, we consider it is a dos drive */
+    if (*p == '\0' || (q - proto_str) <= 1) {
         strcpy(proto_str, "file");
     } else {
         *q = '\0';
@@ -53,7 +54,7 @@ int url_open(URLContext **puc, const char *filename, int flags)
     
     up = first_protocol;
     while (up != NULL) {
-        if (!strcmp(proto_str, up->name)) 
+        if (!strcmp(proto_str, up->name))
             goto found;
         up = up->next;
     }
diff --git a/libavcodec/common.h b/libavcodec/common.h
index 920c4ebc2c..696ec5703d 100644
--- a/libavcodec/common.h
+++ b/libavcodec/common.h
@@ -4,7 +4,7 @@
 #define FFMPEG_VERSION_INT 0x000405
 #define FFMPEG_VERSION     "0.4.5"
 
-#ifdef WIN32
+#if defined(WIN32) && !defined(__MINGW32__)
 #define CONFIG_WIN32
 #endif
 
@@ -43,6 +43,7 @@ typedef INT16 int16_t;
 typedef UINT32 uint32_t;
 typedef INT32 int32_t;
 
+#ifndef __MINGW32__
 #define INT64_C(c)     (c ## i64)
 #define UINT64_C(c)    (c ## i64)
 
@@ -56,6 +57,11 @@ typedef INT32 int32_t;
 #pragma warning( disable : 4244 )
 #pragma warning( disable : 4305 )
 
+#else
+#define INT64_C(c)     (c ## LL)
+#define UINT64_C(c)    (c ## ULL)
+#endif /* __MINGW32__ */
+
 #define M_PI    3.14159265358979323846
 #define M_SQRT2 1.41421356237309504880  /* sqrt(2) */
 
@@ -71,10 +77,13 @@ typedef INT32 int32_t;
 
 #define snprintf _snprintf
 
+#ifndef __MINGW32__
+/* no config.h with VC */
 #define CONFIG_ENCODERS 1
 #define CONFIG_DECODERS 1
 #define CONFIG_AC3      1
 #define CONFIG_MPGLIB   1
+#endif
 
 #else
 
@@ -112,15 +121,35 @@ typedef signed long long INT64;
 #include "fastmemcpy.h"
 #endif
 
+#endif /* HAVE_AV_CONFIG_H */
+
+#endif /* !CONFIG_WIN32 */
+
+/* debug stuff */
+#ifdef HAVE_AV_CONFIG_H
+
 #ifndef DEBUG
 #define NDEBUG
 #endif
 #include <assert.h>
 
-#endif /* HAVE_AV_CONFIG_H */
+/* dprintf macros */
+#if defined(CONFIG_WIN32) && !defined(__MINGW32__)
+
+inline void dprintf(const char* fmt,...) {}
+
+#else
+
+#ifdef DEBUG
+#define dprintf(fmt,args...) printf(fmt, ## args)
+#else
+#define dprintf(fmt,args...)
+#endif
 
 #endif /* !CONFIG_WIN32 */
 
+#endif /* HAVE_AV_CONFIG_H */
+
 /* bit output */
 
 struct PutBitContext;
diff --git a/libavcodec/i386/idct_mmx.c b/libavcodec/i386/idct_mmx.c
index 9f093d1c3e..618c1cfdee 100644
--- a/libavcodec/i386/idct_mmx.c
+++ b/libavcodec/i386/idct_mmx.c
@@ -22,7 +22,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include <inttypes.h>
+#include "../common.h"
 
 #include "mmx.h"
 
diff --git a/libavcodec/mjpeg.c b/libavcodec/mjpeg.c
index 1103e11d04..08281a5014 100644
--- a/libavcodec/mjpeg.c
+++ b/libavcodec/mjpeg.c
@@ -16,6 +16,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
+//#define DEBUG
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
@@ -419,22 +420,6 @@ void mjpeg_encode_mb(MpegEncContext *s,
 /******************************************/
 /* decoding */
 
-//#define DEBUG
-
-#ifndef CONFIG_WIN32
-
-#ifdef DEBUG
-#define dprintf(fmt,args...) printf(fmt, ## args)
-#else
-#define dprintf(fmt,args...)
-#endif
-
-#else
-
-inline void dprintf(const char* fmt,...) {}
-
-#endif
-
 /* compressed picture size */
 #define PICTURE_BUFFER_SIZE 100000
 
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index f0aecd9803..758124eea6 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -16,28 +16,13 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
+//#define DEBUG
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
 
 #include "mpeg12data.h"
 
-//#define DEBUG
-
-#ifndef CONFIG_WIN32
-
-#ifdef DEBUG
-#define dprintf(fmt,args...) printf(fmt, ## args)
-#else
-#define dprintf(fmt,args...)
-#endif
-
-#else
-
-inline void dprintf(const char* fmt,...) {}
-
-#endif
-
 /* Start codes. */
 #define SEQ_END_CODE		0x000001b7
 #define SEQ_START_CODE		0x000001b3