From 8b5641263a915d4b8ac4c9c8f84f34f09b120402 Mon Sep 17 00:00:00 2001
From: Benjamin Franzke <benjaminfranzke@googlemail.com>
Date: Thu, 20 Oct 2011 11:12:30 +0200
Subject: Use signalfd if available

If kqueue can be added as well, our homegrown kinda ugly
signal dispatcher could be killed.
---
 configure.ac | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 4d51963..208da52 100644
--- a/configure.ac
+++ b/configure.ac
@@ -26,9 +26,15 @@ AC_SUBST(GCC_CFLAGS)
 
 AC_SUBST(CURSES_LIBS)
 
-AC_CHECK_HEADERS([ncurses.h sys/ioctl.h unistd.h signal.h])
+AC_CHECK_HEADERS([ncurses.h sys/ioctl.h sys/signalfd.h unistd.h signal.h])
 
 AC_CHECK_FUNC([sigaction], [], AC_MSG_ERROR([function sigaction() not found]))
+AC_CHECK_FUNCS([signalfd])
+
+AM_CONDITIONAL([HAVE_SIGNALFD],
+	       [test "x$ac_cv_func_signalfd" = "xyes" -a "x$ac_cv_header_sys_signalfd_h" = "xyes"])
+
+AC_DEFINE([_POSIX_C_SOURCE], [1], [Enable POSIX.1-1990 definitions])
 
 AC_C_INLINE
 
-- 
cgit