ffserver error

> hello, anybody tellme please why ocurr this error on ffserver
>
> # ffserver -f ffserver-mwm.conf
> FFserver version SVN-r25733, Copyright (c) 2000-2010 the FFmpeg developers
>   built on Nov 12 2010 07:04:15 with gcc 4.3.2
>   configuration: --enable-swscale --enable-gpl --enable-avfilter
> --enable-shared --enable-libx264 --enable-nonfree --enable-pthreads
>   libavutil     50.33. 0 / 50.33. 0
>   libavcore      0.12. 1 /  0.12. 1
>   libavcodec    52.94. 4 / 52.94. 4
>   libavformat   52.84. 0 / 52.84. 0
>   libavdevice   52. 2. 2 / 52. 2. 2
>   libavfilter    1.60. 0 /  1.60. 0
>   libswscale     0.12. 0 /  0.12. 0
> Aspect ratio mismatch between encoder and muxer layer

Reverting/applying this patch makes it work again.

Index: libavutil/rational.h
===================================================================
--- libavutil/rational.h    (revision 25549)
+++ libavutil/rational.h    (working copy)
@@ -29,7 +29,6 @@
 #define AVUTIL_RATIONAL_H

 #include <stdint.h>
-#include <limits.h>
 #include "attributes.h"

 /**
@@ -44,16 +43,13 @@
  * Compare two rationals.
  * @param a first rational
  * @param b second rational
- * @return 0 if a==b, 1 if a>b, -1 if a<b, and INT_MIN if one of the
- * values is of the form 0/0
+ * @return 0 if a==b, 1 if a>b and -1 if a<b
  */
 static inline int av_cmp_q(AVRational a, AVRational b){
     const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den;

     if(tmp) return ((tmp ^ a.den ^ b.den)>>63)|1;
-    else if(b.den && a.den) return 0;
-    else if(a.num && b.num) return (a.num>>31) - (b.num>>31);
-    else                    return INT_MIN;
+    else    return 0;
 }