Gentoo bugzilla: https://bugs.gentoo.org/show_bug.cgi?id=493050
Patch-by: Dennis 'dlan' Lan <dennis.yxun@gmail.com>

diff --git a/configure.ac b/configure.ac
index 7ea3ec8..290fce0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,11 +1,12 @@
 AC_INIT
 
+AM_INIT_AUTOMAKE(libev,4.15) dnl also update ev.h!
+
 orig_CFLAGS="$CFLAGS"
 
 AC_CONFIG_SRCDIR([ev_epoll.c])
 AC_CONFIG_MACRO_DIR([m4])
 
-AM_INIT_AUTOMAKE(libev,4.15) dnl also update ev.h!
 AC_CONFIG_HEADERS([config.h])
 AM_MAINTAINER_MODE