utils: Check for dirfd(3)

Not all POSIX compatible systems might provide it yet. If not, we close the lowest FD to close and hope it gets reused by opendir().
2015-08-17 11:19:48 +02:00
parent f25f4192c7
commit 6d9cd1d66b
2 changed files with 10 additions and 1 deletions
@@ -583,7 +583,7 @@ AC_CHECK_FUNC(
 )

 AC_CHECK_FUNCS(prctl mallinfo getpass closefrom getpwnam_r getgrnam_r getpwuid_r)
-AC_CHECK_FUNCS(fmemopen funopen mmap memrchr setlinebuf strptime)
+AC_CHECK_FUNCS(fmemopen funopen mmap memrchr setlinebuf strptime dirfd)

 AC_CHECK_FUNC([syslog], [
 	AC_DEFINE([HAVE_SYSLOG], [], [have syslog(3) and friends])