fix a configure warning while checking for netfilter.h

(This used to be ctdb commit fa5afee8e9a8fba6017bc58f87bc040de7206e63)

diff --git a/ctdb/configure.ac b/ctdb/configure.ac
index 416349dc012a3b2bdc3f89540d6e20f3eea07f61..fd75717454c7a48e809d207e4b8c79e9c1e7a3a8 100644 (file)
--- a/ctdb/configure.ac
+++ b/ctdb/configure.ac
@@ -69,7 +69,7 @@ m4_include(libtdb.m4)
 m4_include(libevents.m4)
 m4_include(ib/config.m4)
 
-AC_CHECK_HEADERS(libipq.h linux/netfilter.h)
+AC_CHECK_HEADERS([libipq.h linux/netfilter.h], [], [], [#include <netinet/in.h>])
 
 IPQ_LIBS=""
 if test x"$ac_cv_header_libipq_h" = x"yes"; then