FYI on a RiscPC (arm32) with yesterday's source and

# cat /etc/mk.conf
CC=cc -march=armv3m -mtune=strongarm -pipe
MKPROFILE="no"

dependall ===> libgcc
...
cc -march=armv3m -mtune=strongarm -pipe -O2  -Werror   -I/usr/src/gnu/lib/libgcc
/../../usr.bin/egcs/arch/arm32 -I/usr/src/gnu/lib/libgcc/../../usr.bin/egcs/arch
  -I/usr/src/gnu/lib/libgcc/../../dist/gcc/config -I/usr/src/gnu/lib/libgcc/../.
./dist/gcc/cp -I/usr/src/gnu/lib/libgcc/../../dist/gcc -c -DL__dummy -o __dummy.
o /usr/src/gnu/lib/libgcc/../../dist/gcc/libgcc2.c
make: don't know how to make __dummy.po. Stop

Getting rid of MKPROFILE="no" allowed things to carry on..

Cheers,

Patrick