gcc bug workaround by (Jonathan Gray <khalek at linuxgamers dot net>)

Originally committed as revision 3208 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/svq1.c

@@ -914,6 +914,9 @@ static void svq1_write_header(SVQ1Context *s, int frame_type)
 #define QUALITY_THRESHOLD 100
 #define THRESHOLD_MULTIPLIER 0.6
 
+#if defined(HAVE_ALTIVEC)
+#undef vector
+#endif
 
 static int encode_block(SVQ1Context *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra){
     int count, y, x, i, j, split, best_mean, best_score, best_count;