https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89796
Nicholas Krause <xerofoify at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |xerofoify at gmail dot com --- Comment #1 from Nicholas Krause <xerofoify at gmail dot com> --- I just compiled this like so: ./bin/g++ test.cpp -fopenmp -Wall -fconcepts -o name test2.cpp and got this on a build from yesterday: g++: internal compiler error: Segmentation fault signal terminated program cc1plus Please submit a full bug report, with preprocessed source if appropriate. See <https://gcc.gnu.org/bugs/> for instructions. This code is linked to another version of this https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88395 as it crashes before your warning issue. I posted to the list here about a possible fix yesterday for it: https://gcc.gnu.org/ml/gcc/2019-03/msg00185.html