From 9d475600bff8a69f39310f0dd8899e3fafb16514 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Thu, 6 Oct 2022 00:16:55 +0200
Subject: [PATCH] Add serial number to wxwin.m4

This is a common convention and is helpful when installing this file,
see https://www.gnu.org/software/automake/manual/html_node/Serials.html

The serial value of 42 corresponds to the number of commits to this file
so far (and is also the right answer to the question of "what should the
serial be", of course, just as to any other question).

See #22848.

(cherry picked from commit aa06e0cbf97816f1f57947568978b837e41c3fb5)
---
 docs/changes.txt | 1 +
 wxwin.m4         | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/docs/changes.txt b/docs/changes.txt
index e1bf01ebca..9214084c1c 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -240,6 +240,7 @@ All:
 - Fix wx-config generation in CMake builds (Maarten Bent, #22806).
 - Fix compilation of code using wxTransformMatrix with recent gcc (#22790).
 - Fix memory leak when destroying wxThread (Antti Nietosvaara, #22840).
+- Add serial number to wxwin.m4 file (#22848).
 
 All (GUI):
 
diff --git a/wxwin.m4 b/wxwin.m4
index ec0ab09b99..5a0265ea92 100644
--- a/wxwin.m4
+++ b/wxwin.m4
@@ -5,6 +5,9 @@ dnl                  Bob McCown (Mac-testing)
 dnl Creation date:   24/11/2001
 dnl ---------------------------------------------------------------------------
 
+dnl Increment this when changing this file.
+# serial 42
+
 dnl ===========================================================================
 dnl Table of Contents of this macro file:
 dnl -------------------------------------