mirror of
https://sourceware.org/git/glibc.git
synced 2025-08-08 17:42:12 +03:00
5b7c8d1cd4
On x86-64, when GCC 14.2.1 is used to build: commitf3c82fc1b4Author: Radko Krkos <krkos@mail.muni.cz> Date: Sat Jun 14 11:07:40 2025 +0200 io: Mark lockf() __wur [BZ #32800] In commit0476597b28flock() was marked __wur in posix/unistd.h, but not in io/fcntl.h, the declarations must match. Reviewed-by: Florian Weimer <fweimer@redhat.com> I got programs/locarchive.c: In function ‘open_archive’: programs/locarchive.c:641:18: error: ignoring return value of ‘lockf64’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result] 641 | (void) lockf64 (fd, F_ULOCK, sizeof (struct locarhead)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ programs/locarchive.c:653:14: error: ignoring return value of ‘lockf64’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result] 653 | (void) lockf64 (fd, F_ULOCK, sizeof (struct locarhead)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ programs/locarchive.c:660:14: error: ignoring return value of ‘lockf64’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result] 660 | (void) lockf64 (fd, F_ULOCK, sizeof (struct locarhead)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ programs/locarchive.c:679:14: error: ignoring return value of ‘lockf64’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result] 679 | (void) lockf64 (fd, F_ULOCK, sizeof (struct locarhead)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Update locarchive.c to always check lockf64 return value. This fixes BZ #33089. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Florian Weimer <fweimer@redhat.com>