https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107616
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by John David Anglin <dang...@gcc.gnu.org>: https://gcc.gnu.org/g:3ea4b96173db521366cd5d62c125d4cb6c8f6065 commit r12-11062-g3ea4b96173db521366cd5d62c125d4cb6c8f6065 Author: John David Anglin <dang...@gcc.gnu.org> Date: Mon Jan 9 15:41:51 2023 +0000 Fix compilation of server.cc on hpux. Select and FD_ISSET are declared in sys/time.h on most versions of hpux. As a result, HAVE_PSELECT and HAVE_SELECT can be 0. 2023-01-08 John David Anglin <dang...@gcc.gnu.org> c++tools/ChangeLog: PR other/107616 * server.cc (server): Don't call FD_ISSET when HAVE_PSELECT and HAVE_SELECT are zero.