Somethign missing in my environment?

I'm trying to compile world, but I keep getting:

/usr/obj/usr/srcs/head/src/tmp/usr/lib/libgcc_s.so: undefined reference
to `__gxx_personality_v0'
cc: error: linker command failed with exit code 1 (use -v to see invocation)
*** [h_raw.full] Error code 1

Even after refetching the complete tree.

Thanx for any suggestions,
--WjW