Check that signalfd() is supported

diff --git a/configure.ac b/configure.ac
index a3b7d75..fa33947 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -64,6 +64,9 @@ AC_ARG_ENABLE(pie, AC_HELP_STRING([--enable-pie],
 AC_ARG_ENABLE(threads, AC_HELP_STRING([--enable-threads],
                [enable threading support]), [enable_threads=${enableval}])
 
+AC_CHECK_LIB(c, signalfd, dummy=yes,
+                       AC_MSG_ERROR(signalfd support is required))
+
 AC_CHECK_LIB(dl, dlopen, dummy=yes,
                        AC_MSG_ERROR(dynamic linking loader is required))