Use jhbuild to build gstreamer (gnome 2.10 moduleset):

if /bin/sh ../libtool --mode=compile --tag=CC gcc -DHAVE_CONFIG_H -I. -I. -I.. 
  -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -pthread
-I/home/jeroen/Gnome/built/include/glib-2.0
-I/home/jeroen/Gnome/built/lib64/glib-2.0/include
-I/home/jeroen/Gnome/built/include/libxml2   -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64   -fno-common -g -Wall -Werror -DGST_DISABLE_DEPRECATED 
   -I.. -DG_LOG_DOMAIN=g_log_domain_gstreamer -DGST_MAJORMINOR=\""0.8"\"  -g -O2
-MT libgstreamer_0.8_la-gstinfo.lo -MD -MP -MF
".deps/libgstreamer_0.8_la-gstinfo.Tpo" -c -o libgstreamer_0.8_la-gstinfo.lo
`test -f 'gstinfo.c' || echo './'`gstinfo.c; \
then mv -f ".deps/libgstreamer_0.8_la-gstinfo.Tpo"
".deps/libgstreamer_0.8_la-gstinfo.Plo"; else rm -f
".deps/libgstreamer_0.8_la-gstinfo.Tpo"; exit 1; fi
 gcc -DHAVE_CONFIG_H -I. -I. -I.. -D_GNU_SOURCE -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -pthread -I/home/jeroen/Gnome/built/include/glib-2.0
-I/home/jeroen/Gnome/built/lib64/glib-2.0/include
-I/home/jeroen/Gnome/built/include/libxml2 -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -fno-common -g -Wall -Werror -DGST_DISABLE_DEPRECATED
-I.. -DG_LOG_DOMAIN=g_log_domain_gstreamer -DGST_MAJORMINOR=\"0.8\" -g -O2 -MT
libgstreamer_0.8_la-gstinfo.lo -MD -MP -MF .deps/libgstreamer_0.8_la-gstinfo.Tpo
-c gstinfo.c  -fPIC -DPIC -o .libs/libgstreamer_0.8_la-gstinfo.o
/tmp/ccKKDcWv.s: Assembler messages:
/tmp/ccKKDcWv.s:291: Error: suffix or operands invalid for `mov'
/tmp/ccKKDcWv.s:364: Error: suffix or operands invalid for `mov'
/tmp/ccKKDcWv.s:627: Error: suffix or operands invalid for `mov'
make[4]: *** [libgstreamer_0.8_la-gstinfo.lo] Error 1
make[4]: Leaving directory `/home/jeroen/Gnome/cvs/gstreamer/gst'