--- a/configure.ac
+++ b/configure.ac
@@ -1140,7 +1140,8 @@ if test x$has_threads = xtrue; then
       [
 	# Rwlock not defined
         CFLAGS="$CFLAGS -D_XOPEN_SOURCE=600"
-      ]
+      ],
+      []
     )
   ],
   [
@@ -1475,6 +1476,10 @@ AC_CHECK_FUNC(epoll_wait,
       [
         AC_DEFINE([HAVE_EPOLL_WAIT], [1], [HAVE_EPOLL_WAIT])
       ],
+      [],
+      [
+        AC_DEFINE([HAVE_EPOLL_WAIT], [1], [HAVE_EPOLL_WAIT])
+      ]
     )
   ])