[...]
Making all in libavcodec
make[7]: Entering directory `/tmp/gst-ffmpeg-0.8.2/gst-libs/ext/ffmpeg/libavcodec'
Making all in i386
make[8]: Entering directory
`/tmp/gst-ffmpeg-0.8.2/gst-libs/ext/ffmpeg/libavcodec/i386'
if /bin/sh ../../libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I../..
-I../../libavcodec -DHAVE_AV_CONFIG_H=1   -msse -s -O3 -march=i686 -MT
libmmxsse_la-dsputil_mmx.lo -MD -MP -MF ".deps/libmmxsse_la-dsputil_mmx.Tpo" -c
-o libmmxsse_la-dsputil_mmx.lo `test -f 'dsputil_mmx.c' || echo
'./'`dsputil_mmx.c; \
then mv -f ".deps/libmmxsse_la-dsputil_mmx.Tpo"
".deps/libmmxsse_la-dsputil_mmx.Plo"; else rm -f
".deps/libmmxsse_la-dsputil_mmx.Tpo"; exit 1; fi
 gcc -DHAVE_CONFIG_H -I. -I. -I../.. -I../../libavcodec -DHAVE_AV_CONFIG_H=1
-msse -s -O3 -march=i686 -MT libmmxsse_la-dsputil_mmx.lo -MD -MP -MF
.deps/libmmxsse_la-dsputil_mmx.Tpo -c dsputil_mmx.c  -fPIC -DPIC -o
.libs/libmmxsse_la-dsputil_mmx.o
dsputil_mmx.c: In function `h263_h_loop_filter_mmx':
dsputil_mmx.c:567: error: can't find a register in class `GENERAL_REGS' while
reloading `asm'
dsputil_mmx.c:614: error: can't find a register in class `GENERAL_REGS' while
reloading `asm'
make[8]: *** [libmmxsse_la-dsputil_mmx.lo] Error 1
make[8]: Leaving directory
`/tmp/gst-ffmpeg-0.8.2/gst-libs/ext/ffmpeg/libavcodec/i386'
make[7]: *** [all-recursive] Error 1
make[7]: Leaving directory `/tmp/gst-ffmpeg-0.8.2/gst-libs/ext/ffmpeg/libavcodec'
make[6]: *** [all-recursive] Error 1
make[6]: Leaving directory `/tmp/gst-ffmpeg-0.8.2/gst-libs/ext/ffmpeg'
make[5]: *** [all] Error 2
make[5]: Leaving directory `/tmp/gst-ffmpeg-0.8.2/gst-libs/ext/ffmpeg'
make[4]: *** [all-local] Error 2
make[4]: Leaving directory `/tmp/gst-ffmpeg-0.8.2/gst-libs/ext'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/tmp/gst-ffmpeg-0.8.2/gst-libs/ext'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/tmp/gst-ffmpeg-0.8.2/gst-libs'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/tmp/gst-ffmpeg-0.8.2'
make: *** [all] Error 2