util.h: gcc printf format attribute

[wimlib] / configure.ac

diff --git a/configure.ac b/configure.ac
index df99a32927b4e4adea455a5d7f160f3592acca9b..1efb42b343a8f36fb62bec2a92c23bbf1cff94b9 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_AUX_DIR([build-aux])
 AM_INIT_AUTOMAKE([-Wall -Werror subdir-objects])
 AC_C_BIGENDIAN
-AM_PROG_AR
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 LT_INIT
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_FILES([Makefile