From: Bartosz Golaszewski <bartekgola@gmail.com>
Date: Wed, 18 Apr 2018 15:44:52 +0000 (+0200)
Subject: build: check for unexpanded macros in configure.ac
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=bdc8e6bfd5efa8fd949f7fd29dee19f7ade990a1;p=qemu-gpiodev%2Flibgpiod.git

build: check for unexpanded macros in configure.ac

We're now using m4 macros from the autoconf-archive collection. The
user may be missing this package so check for unexpanded AX_* macros
and bail-out if any are found.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
---

diff --git a/configure.ac b/configure.ac
index ee7b03b..bc4b703 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,6 +38,8 @@ AC_CONFIG_MACRO_DIRS([m4])
 AM_INIT_AUTOMAKE([foreign subdir-objects])
 
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+m4_pattern_forbid([^AX_],
+	[Unexpanded AX_ macro found. Please install GNU autoconf-archive.])
 
 AC_CONFIG_SRCDIR([src])
 AC_CONFIG_HEADER([config.h])