configure.ac: specify minimal GNU Automake version

In order to provide better diagnostics.

* configure.ac (AM_INIT_AUTOMAKE): Specify minimal GNU Automake version as
1.13 due to usage of AM_EXTRA_RECURSIVE_TARGETS macro.

Closes: https://github.com/strace/strace/issues/11

diff --git a/configure.ac b/configure.ac
index 8a5075516369313f43c9162affa946611e5e3594..d064285f428cda821236d59b9514a6064be34067 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -42,7 +42,7 @@ AC_COPYRIGHT([Copyright (c) 1999-]copyright_year[ The strace developers.])
 AC_CONFIG_SRCDIR([strace.c])
 AC_CONFIG_AUX_DIR([.])
 AC_CONFIG_HEADERS([config.h])
-AM_INIT_AUTOMAKE([foreign nostdinc dist-xz silent-rules parallel-tests])
+AM_INIT_AUTOMAKE([foreign nostdinc dist-xz silent-rules parallel-tests 1.13])
 AM_MAINTAINER_MODE
 AC_CANONICAL_HOST