--- /dev/null
+diff --git a/configure.ac b/configure.ac
+index 220909a..77da67a 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -13,7 +13,6 @@ LTLDFLAGS="-version-info ${lt_current}:${lt_revision}:${lt_age}"
+
+ AC_CONFIG_MACRO_DIR([m4])
+ AM_INIT_AUTOMAKE([foreign -Wall -Werror])
+-AC_CONFIG_MACRO_DIR([m4])
+
+ m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+ LT_INIT