File spek-autotools.patch of Package spek

From e20ce13a5305327b7dfec9303f1487520095f36d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Forsman?= <bjorn.forsman@gmail.com>
Date: Wed, 16 Jul 2025 13:10:44 +0200
Subject: [PATCH] Fix build with recent autotools

Tell autoconf where m4 macros are, or else the build fails like this:

  configure.ac:12: the top level
  configure.ac:71: error: possibly undefined macro: AM_GNU_GETTEXT_VERSION
        If this token and others are legitimate, please use m4_pattern_allow.
        See the Autoconf documentation.
  configure.ac:72: error: possibly undefined macro: AM_GNU_GETTEXT
  autoreconf: error: /nix/store/0qmqybsb86p5g6vqxj992grj9hyh72wa-autoconf-2.72/bin/autoconf failed with exit status: 1

This is a backward compatible change.
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index fe95c88..1c4b370 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,7 @@
 AC_INIT([spek],[0.8.5])
 AC_CONFIG_SRCDIR([src/spek.cc])
 AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_MACRO_DIRS([m4])
 AM_INIT_AUTOMAKE([1.11.1 foreign no-dist-gzip dist-xz serial-tests])
 AM_SILENT_RULES([yes])