Fix build error when SIGPOLL is not available

On Linux, SIGPOLL is a valid signal, but on systems like FreeBSD, it is
not. This patch does a preprocessor check to see if SIGPOLL is available
or not.

Signed-off-by: Mark Weiman <mark.weiman@markzz.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c
index 46c1d0a1..299d287e 100644
--- a/lib/libalpm/util.c
+++ b/lib/libalpm/util.c
@@ -558,8 +558,12 @@ static void _alpm_reset_signals(void)
 	int *i, signals[] = {
 		SIGABRT, SIGALRM, SIGBUS, SIGCHLD, SIGCONT, SIGFPE, SIGHUP, SIGILL,
 		SIGINT, SIGKILL, SIGPIPE, SIGQUIT, SIGSEGV, SIGSTOP, SIGTERM, SIGTSTP,
-		SIGTTIN, SIGTTOU, SIGUSR1, SIGUSR2, SIGPOLL, SIGPROF, SIGSYS, SIGTRAP,
-		SIGURG, SIGVTALRM, SIGXCPU, SIGXFSZ,
+		SIGTTIN, SIGTTOU, SIGUSR1, SIGUSR2, SIGPROF, SIGSYS, SIGTRAP, SIGURG,
+		SIGVTALRM, SIGXCPU, SIGXFSZ,
+#if defined(SIGPOLL)
+		/* Not available on FreeBSD et al. */
+		SIGPOLL,
+#endif
 		0
 	};
 	struct sigaction def;