Hmm, I usually compile with -O2 -m68060 options and I didn't experience
any failures due to compiler errors so far. My /etc/mk.conf looks like
this:
COPTS+= -O2 -m68060 -Wa,-m68060,-m68851
M68060=YES
Kernel and userland compiles just fine with this setting, last tested
with HEAD trunk some days ago. I don`t use pkgsrc, I usually download
the source archives directly from their host sites and do the classical
./configure; make install thing. I also set CFLAGS="-O2 -m68060" in my
.profile so that ./configure automatically generates Makefiles with this
two compiler options. All applications compiled this way worked for me
so far. So I cannot confirm that there is some gcc problem with -m68060
option. -O3 is another story though.