Added ability to use autreconf version 1.11

Tal Zilcer · Tal Zilcer · commit 415c9ec6d1a7 · 2014-02-17T14:47:50.000+02:00
diff --git a/configure.ac b/configure.ac
@@ -1,6 +1,7 @@
 AC_INIT([jsonrpc-c], [0.1], [hmng@farol.pt])
 AC_CONFIG_SRCDIR([src/jsonrpc-c.c])
 
+m4_pattern_allow([AM_PROG_AR])
 AM_PROG_AR
 LT_INIT
 AM_INIT_AUTOMAKE([-Wall -Werror foreign])
