Solaris Sparc 2.7, Problem building gcc-3.1-20020423

[mckelvey]

SunOS mushroom 5.7 Generic_106541-19 sun4u sparc SUNW,Ultra-2

./xgcc -B./ -B/mnt/home3/utilities/sparc-sun-solaris2.7/bin/ -isystem 
/mnt/home3/utilities/sparc-sun-solaris2.7/include -isystem 
/mnt/home3/utilities/sparc-sun-solaris2.7/sys-include -O2  -DIN_GCC    
-W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes 
-isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. 
-I/mnt/home3/utilities/gcc-3.1-20020423/gcc 
-I/mnt/home3/utilities/gcc-3.1-20020423/gcc/. 
-I/mnt/home3/utilities/gcc-3.1-20020423/gcc/config 
-I/mnt/home3/utilities/gcc-3.1-20020423/gcc/../include  -m64 -DL_muldi3 
-c /mnt/home3/utilities/gcc-3.1-20020423/gcc/libgcc2.c -o 
libgcc/sparcv9/_muldi3.o
In file included from 
/mnt/home3/utilities/gcc-3.1-20020423/gcc/libgcc2.c:46:
/mnt/home3/utilities/gcc-3.1-20020423/gcc/libgcc2.h:81: no data type for 
mode `TI'
/mnt/home3/utilities/gcc-3.1-20020423/gcc/libgcc2.h:82: no data type for 
mode `TI'
gmake[3]: *** [libgcc/sparcv9/_muldi3.o] Error 1
gmake[3]: Leaving directory `/mnt/home3/utilities/gcc-obj/gcc'
gmake[2]: *** [stmp-multilib] Error 2
gmake[2]: Leaving directory `/mnt/home3/utilities/gcc-obj/gcc'
gmake[1]: *** [stage1_build] Error 2
gmake[1]: Leaving directory `/mnt/home3/utilities/gcc-obj/gcc'
gmake: *** [bootstrap] Error 2