[Bug libgcc/87189] libgcc/gthr-posix.h (__gthread_active_p) makes unwarranted assumptions about libpthread.a

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87189

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
gthr.h is used heavily e.g. in libstdc++, so your solution doesn't really work
at all.