bigloo on UltraSparc T1 (Niagara)

Hi Manuel,

I tried to build bigloo-3.1a on an UltraSparc T1 (Niagara) and got the following build
failure:

make[3]: Leaving directory
`/var/tmp/portage/dev-scheme/bigloo-3.1a/work/bigloo3.1a/gc/gc-7.1/libatomic_ops-1.2'
gcc  -O2 -O2 -mcpu=ultrasparc -pipe -DNO_DEBUGGING -Iinclude
-Ilibatomic_ops-install/include -DFINALIZE_ON_DEMAND   -fPIC -I
/var/tmp/portage/dev-scheme/bigloo-3.1a/work/bigloo3.1a/lib/3.1a   -c -o alloc.o alloc.c
gcc  -O2 -O2 -mcpu=ultrasparc -pipe -DNO_DEBUGGING -Iinclude
-Ilibatomic_ops-install/include -DFINALIZE_ON_DEMAND   -fPIC -I
/var/tmp/portage/dev-scheme/bigloo-3.1a/work/bigloo3.1a/lib/3.1a   -c -o reclaim.o reclaim.c
gcc  -O2 -O2 -mcpu=ultrasparc -pipe -DNO_DEBUGGING -Iinclude
-Ilibatomic_ops-install/include -DFINALIZE_ON_DEMAND   -fPIC -I
/var/tmp/portage/dev-scheme/bigloo-3.1a/work/bigloo3.1a/lib/3.1a   -c -o allchblk.o allchblk.c
gcc  -O2 -O2 -mcpu=ultrasparc -pipe -DNO_DEBUGGING -Iinclude
-Ilibatomic_ops-install/include -DFINALIZE_ON_DEMAND   -fPIC -I
/var/tmp/portage/dev-scheme/bigloo-3.1a/work/bigloo3.1a/lib/3.1a   -c -o misc.o misc.c
gcc  -O -o if_mach ./if_mach.c -I./include
gcc  -O -o if_not_there ./if_not_there.c -I./include
gcc  -O2 -O2 -mcpu=ultrasparc -pipe -DNO_DEBUGGING -Iinclude
-Ilibatomic_ops-install/include -DFINALIZE_ON_DEMAND   -fPIC -I
/var/tmp/portage/dev-scheme/bigloo-3.1a/work/bigloo3.1a/lib/3.1a -o threadlibs ./threadlibs.c
rm -f mach_dep.o
./if_mach SPARC SOLARIS gcc  -c -o mach_dep2.o ./sparc_mach_dep.S
./if_mach SPARC OPENBSD as  -o mach_dep2.o ./sparc_sunos4_mach_dep.s
./if_mach SPARC NETBSD as  -o mach_dep2.o ./sparc_netbsd_mach_dep.s
./if_mach SPARC "" gcc  -c -o mach_dep1.o -I./include -I./libatomic_ops-install/include