https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108225
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |ASSIGNED Target Milestone|--- |13.0 Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org --- Comment #27 from Jonathan Wakely <redi at gcc dot gnu.org> --- Gah, this doesn't work (and not only because it should be <bits/gthr.h> not <gthr.h>). We include os_defines.h before the line create by configure: #include <bits/os_defines.h> ... #define _GLIBCXX_HAS_GTHREADS 1 I have a fix, but it will have to wait for higher priority things to be done first.