commit 99e08eaced30fc80c91be9fdb8635409a4b93500
from: Alexander Barton <alex@barton.de>
date: Tue Oct 19 20:17:12 2010 UTC

Only try to set FD_CLOEXEC if this flag is defined

A/UX 3.x doesn't implement this constant, for example.

commit - 5f2bc55d36810499a4533589acb45839f4721c84
commit + 99e08eaced30fc80c91be9fdb8635409a4b93500
blob - 6843899d5b61e280895e20577072c98282b464f9
blob + 411b383ef3ed6393d63b5417e2f851119f1f008f
--- src/ngircd/io.c
+++ src/ngircd/io.c
@@ -791,7 +791,9 @@ io_setcloexec(int fd)
 	int flags = fcntl(fd, F_GETFD);
 	if (flags == -1)
 		return false;
+#ifdef FD_CLOEXEC
 	flags |= FD_CLOEXEC;
+#endif
 
 	return fcntl(fd, F_SETFD, flags) == 0;
 }