build: Check for signalfd support

diff --git a/configure.ac b/configure.ac
index 9727473..0986045 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -191,6 +191,9 @@ AC_CHECK_LIB(resolv, ns_initparse, dummy=yes, [
                AC_MSG_ERROR(resolver library support is required))
 ])
 
+AC_CHECK_FUNC(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))