https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86412
--- Comment #4 from Ulya <skvadrik at gmail dot com> --- Just in case, here is the output of the latest crashing 'g++ -v': $ g++ -v Using built-in specs. COLLECT_GCC=/home/ulya/devel/gcc-9-20180701-install/bin/g++ COLLECT_LTO_WRAPPER=/home/ulya/devel/gcc-9-20180701-install/bin/../libexec/gcc/x86_64-pc-linux-gnu/9.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc-9-20180701/configure --prefix=/home/ulya/Downloads/gcc-9-20180701-build/../gcc-9-20180701-install --disable-bootstrap --disable-multilib --disable-multiarch --enable-languages=c++ Thread model: posix gcc version 9.0.0 20180701 (experimental) (GCC)