libgcc failures while building world

[Giorgos Keramidas]

I'm trying to buildworld today after a few days that I've been away from
5.X stuff and keep bumping on the same failure during the libgcc build
over and over again:

  ...
: --------------------------------------------------------------
: >>> stage 4: populating /usr/obj/usr/src/i386/usr/include
: --------------------------------------------------------------
: >>> stage 4: building libraries
: --------------------------------------------------------------
: cc -c -O2 -Wall -pipe -fexceptions -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -DFINE_GRAINED_LIBRARIES -D_PTHREADS -DGTHREAD_USE_WEAK -I/usr/src/gnu/lib/libgcc/../../usr.bin/cc/cc_tools  -I/usr/src/gnu/lib/libgcc/../../../contrib/gcc/config -I/usr/src/gnu/lib/libgcc/../../../contrib/gcc -I.  -DL_fixtfdi -o _fixtfdi.o /usr/src/gnu/lib/libgcc/../../../contrib/gcc/libgcc2.c
: *** Signal 11
:
: Stop in /usr/src/gnu/lib/libgcc.
: *** Error code 1
:
: Stop in /usr/src.
: *** Error code 1

I'm running a userland & kernel from Apr 19 (cvsupped around 14:15 UTC).
Since I haven't had the time to catch up with all the commit mail, does
the error message shown above ring a bell to anyone?  Skimming through
UPDATING and the HEADS UP notices of this list didn't seem to provide
any helpful hints so far.

- Giorgos