userland make build for -stable ends in Segmentation fault

Hi all,
i want to build 6.2-stable on a macppc. Kernel works fine and boots, no
problem.
make obj for userland works as well, but make build fails with the same
error,
at different stages though:
[...]
/usr/src/gnu/usr.bin/cc/libgcc/obj/../cc/cc -B
/usr/src/gnu/usr.bin/cc/libgcc/obj/../cc1 -c -O2 -pipe -g -DIN_GCC
-DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -DHAVE_GTHR_DEFAULT
-I/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/include
-I/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/gcc/config
-I/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/gcc -I.
-I/usr/src/gnu/usr.bin/cc/libgcc/../cc_tools  -fno-stack-protector -DIN_GCC
-DHAVE_CONFIG_H -DPREFIX=\"/usr\" -DPIE_DEFAULT=2
-I/usr/src/gnu/usr.bin/cc/libgcc/obj/../cc_tools
-I/usr/src/gnu/usr.bin/cc/libgcc/../cc_tools
-I/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/gcc
-I/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/gcc/config
-I/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/include
-I/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/libcpp/include
-I/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/libdecnumber -fno-pie  -MD
-MP  -fPIC  -DL_popcountsi2 -o _popcountsi2.o
/usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/gcc/libgcc2.c
Segmentation fault (core dumped)
*** Error 139 in gnu/usr.bin/cc/libgcc (Makefile:282 '_popcountsi2.o')
*** Error 1 in gnu/usr.bin/cc (<bsd.subdir.mk>:48 'all')
*** Error 1 in gnu/usr.bin (<bsd.subdir.mk>:48 'all')
*** Error 1 in gnu (<bsd.subdir.mk>:48 'all')
*** Error 1 in . (<bsd.subdir.mk>:48 'all')
*** Error 1 in . (Makefile:95 'do-build')
*** Error 1 in /usr/src (Makefile:74 'build')

here's another one:
[...]
cc -I. -I/usr/src/usr.bin/awk -DHAS_ISBLANK -DNDEBUG
/usr/src/usr.bin/awk/maketab.c -o maketab
./maketab >proctab.c
Segmentation fault (core dumped)
*** Error 139 in usr.bin/awk (Makefile:17 'proctab.c')
*** Error 1 in usr.bin (<bsd.subdir.mk>:48 'all')
*** Error 1 in . (<bsd.subdir.mk>:48 'all')
*** Error 1 in . (Makefile:95 'do-build')
*** Error 1 in /usr/src (Makefile:74 'build')

Any ideas or hints what to do/where to go?

Cheers,
Matt