https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577
--- Comment #150 from The Written Word <bugzilla-gcc at thewrittenword dot com> --- (In reply to Peter Bisroev from comment #149) > (In reply to The Written Word from comment #148) > > (In reply to The Written Word from comment #144) > > > We have a build running that seems to be going well. We are using > > > gcc-4.9.4 > > > to build 8.3.0. I will attach the current patch set we are building > > > against. > > > > We're running into the same issues as encountered in comment#74. I think > > this is because of our patch to address PR66319 so I am attempting a build > > without it. We will then probably run into the problem in comment#76 but > > I'll try to fix that manually and continue the build. > > Did you build your 4.9.4 or you are using a pre-built one? I am trying to > build 4.9.4 using my 4.7.4 but at the end of stage1 I get > ---------- > conftest.c:15:3: internal compiler error: Illegal instruction > ---------- > This is a similar error as described in comment#21. We built 4.9.4. Try 4.9.3 and you might have more success. On 4.9.4, you need to look at PR60465. I think comment#63 here also provides a workaround but we chose to revert the commit that caused the problem.