https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82141
--- Comment #28 from simon at pushface dot org --- (In reply to Iain Sandoe from comment #23) > --with-checking=release --disable-libada succeeds for me too. Because the bug appears when building libada. I haven’t tried with --checking=release. I get identical failures on Darwin 15 and Darwin 16. For the Darwin 15 build (+ patch to darwin.h from PR80556) was configured with --prefix=/Volumes/Miscellaneous/tmp/opt/gcc-8.0.0 --without-libiconv-prefix --disable-libmudflap --disable-libstdcxx-pch --disable-libsanitizer --disable-libcc1 --disable-libcilkrts --disable-multilib --disable-nls --enable-languages=c,c++,ada --build=x86_64-apple-darwin15 and built with make -k; these components all showed the RTSFIND error: g-exptty g-locfil s-gloloc g-socthi I tried removing these from the build, to see whether the exception problem showed up in simpler code, but s-gloloc is used indirectly by rtsfind, so I stopped. The fix in PR80556 is to do with getting a sane unwinder; if left out (and not overriding the default ldflags (-static-libccc, -static-libstdc++)), any exception results in a SEGV (and *not* on the same components! g-exptty, g-mbdira, s-imenne, g-socthi) I wonder whether the check-acats exception issues in PR81361 are related? BTW, I’ve only used the --disable-libada etc. approach when building a cross-compiler.
