--- a/configure.ac	2015-08-14 16:26:09.661856984 -0300
+++ b/configure.ac	2015-08-14 16:26:20.209851076 -0300
@@ -4,7 +4,7 @@
 AC_CONFIG_AUX_DIR(config)
 AC_CONFIG_MACRO_DIR(config)
 AM_INIT_AUTOMAKE([1.10 -Werror foreign subdir-objects std-options dist-bzip2])
-AM_PROG_AR
+m4_pattern_allow([AM_PROG_AR])
 AC_CONFIG_HEADERS([include/config.h])
 AC_CONFIG_SRCDIR(zbar/scanner.c)
 LT_PREREQ([2.2])