Re: GCC 10 ICE compiling "lex.c"?

[Martin Husemann <martin%duskware.de@localhost>]

On Sun, Jun 27, 2021 at 06:29:42AM -0500, John D. Baker wrote:
> I saw the same error for a couple of cycles in the TNF build logs (which
> have now fallen off the end of history), which would still be using GCC
> 9.x but it seems to have been fixed or otherwise cleared up.

I worked around them by lowering optiomization to -O0 for that file,
but conditionalized it on sh3 + gcc9. See src/usr.bin/xlint/lint1/Makefile:

# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101177
.if defined(HAVE_GCC) && ${HAVE_GCC} == 9 &&    \
        (${MACHINE_ARCH} == "sh3el" || ${MACHINE_ARCH} == "sh3eb")
COPTS.lex.c+=   -O0
.endif


Martin