[Bug c++/71174] [concepts] Segmentation fault while processing concepts error

[t at sharklasers dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71174

--- Comment #3 from JD <t at sharklasers dot com> ---
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=local/gcc6.1/lib/gcc/x86_64-pc-linux-gnu/6.1.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-6.1.0/configure --prefix=local/gcc6.1
--enable-languages=c,c++,fortran --enable-gold=yes --enable-ld=yes --enable-lto
--enable-bootstrap --disable-multilib
Thread model: posix
gcc version 6.1.0 (GCC)