Replace AC_CHECK_FUNC by AC_CHECK_FUNCS otherwise HAVE_PIDFD_OPEN will
never be defined resulting in the following build failure if pidfd_open
is available but __NR_pidfd_open is not available:
pgrep.c: In function 'pidfd_open':
pgrep.c:748:17: error: '__NR_pidfd_open' undeclared (first use in this function); did you mean 'pidfd_open'?
748 | return syscall(__NR_pidfd_open, pid, flags);
| ^~~~~~~~~~~~~~~
| pidfd_open
This build failure is raised since the addition of pwait in version
3.3.17 and
c8384e682c
Fixes:
- http://autobuild.buildroot.org/results/f23a5156e641b2ebdd673973dec0f9c87760c688
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
17f94796a9