Xgl will not build

[Bob Smith]

hi
When ever i try to build xgl:
=======================================================================
configure --enable-xgl --enable-xglx --disable-xorg
--with-mesa-sources=/opt/xorg/Mesa-6.5 --prefix=/opt/xgl
=======================================================================
it get this:
===================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================
make[3]: Entering directory `/opt/xorg/xorg-server-1.1.1/hw/xgl'
if gcc -DHAVE_CONFIG_H -I. -I. -I../../include -I../../include
-I../../include -I../../include -I../../include -I../../include
-I../../include -I../../include    -DXFree86Server -DHAVE_XGL_CONFIG_H
-DHAVE_DIX_CONFIG_H -I../../GL/glx -I../../GL/include -I/include
-I/src/mesa/glapi -I/usr/X11R6/include   -Wall -Wpointer-arith
-Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations
-Wnested-externs -fno-strict-aliasing -D_BSD_SOURCE -DHAS_FCHOWN
-DHAS_STICKY_DIR_BIT -I/usr/X11R7/include   -I../../include
-I../../include -I../../Xext -I../../composite -I../../damageext
-I../../xfixes -I../../Xi -I../../mi -I../../miext/shadow
-I../../miext/damage -I../../render -I../../randr -I../../fb  -Os
-march=i386 -mtune=i386 -fomit-frame-pointer -w -s -MT xglcompose.o
-MD -MP -MF ".deps/xglcompose.Tpo" -c -o xglcompose.o xglcompose.c; \
        then mv -f ".deps/xglcompose.Tpo" ".deps/xglcompose.Po"; else
rm -f ".deps/xglcompose.Tpo"; exit 1; fi
xglcompose.c: In function 'xglCompositeGeneral':
xglcompose.c:134: error: 'union _SourcePict' has no member named 'source'
xglcompose.c:172: error: 'union _SourcePict' has no member named 'source'
make[3]: *** [xglcompose.o] Error 1
make[3]: Leaving directory `/opt/xorg/xorg-server-1.1.1/hw/xgl'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/opt/xorg/xorg-server-1.1.1/hw/xgl'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/opt/xorg/xorg-server-1.1.1/hw'
make: *** [all-recursive] Error 1
===================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================

What is the problem?

Any help is appreciated

Thanks in advance