https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577
C. Heide <cameron.heide at betasystems dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |cameron.heide at betasystems dot c | |om --- Comment #73 from C. Heide <cameron.heide at betasystems dot com> --- With that change, and some other cajoling (the previously mentioned duplicate symbols and operand64 problem, and -O1 to work around the ICE), I can now get gcc-8.3 to do a full bootstrap on HP-UX 11.23 ia64. I haven't run the GCC testsuite yet, but it was able to build an internal C++ app and pass its unit tests, though it did still need the duplicate symbol workaround when linking (added -Wl,+allowdups).