https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119089
--- Comment #9 from John David Anglin <danglin at gcc dot gnu.org> --- The PTHREAD_COND_INITIALIZER initializer changed in glibc 2.41. In addition to regenerating the gcc fixincludes, I believe gcc needs rebuilding as the initializer is used in gthr.h. Debian doesn't ship a fixed pthread.h but the change still may break libstdc++-v3. Not sure.
