ptest needs buildtest-TESTS and runtest-TESTS targets.
serial-tests is required to generate those targets.

Signed-off-by: Alexandra Safta <alexandra.safta@enea.com>
Upstream-Status: Pending

 diff -ruN a/configure.ac b/configure.ac
--- a/configure.ac	2014-05-26 17:52:40.184221302 +0200
+++ b/configure.ac	2014-05-26 17:53:04.099222334 +0200
@@ -2,7 +2,7 @@
 AC_INIT(ethtool, 3.13, netdev@vger.kernel.org)
 AC_PREREQ(2.52)
 AC_CONFIG_SRCDIR([ethtool.c])
-AM_INIT_AUTOMAKE([gnu])
+AM_INIT_AUTOMAKE([gnu serial-tests])
 AC_CONFIG_HEADERS([ethtool-config.h])

 AM_MAINTAINER_MODE