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- From 85599643e2fbf70f7f0bd58831993132ef335705 Mon Sep 17 00:00:00 2001
- From: Bruno Haible <[email protected]>
- Date: Wed, 22 Jan 2025 21:25:27 +0100
- Subject: New module 'version-stamp'.
- * m4/version-stamp.m4: New file.
- * modules/version-stamp: New file.
- ---
- ChangeLog | 6 ++++++
- m4/version-stamp.m4 | 35 +++++++++++++++++++++++++++++++++++
- modules/version-stamp | 19 +++++++++++++++++++
- 3 files changed, 60 insertions(+)
- create mode 100644 m4/version-stamp.m4
- create mode 100644 modules/version-stamp
- --- /dev/null
- +++ b/m4/version-stamp.m4
- @@ -0,0 +1,35 @@
- +# version-stamp.m4
- +# serial 1
- +dnl Copyright (C) 2025 Free Software Foundation, Inc.
- +dnl This file is free software, distributed under the terms of the GNU
- +dnl General Public License. As a special exception to the GNU General
- +dnl Public License, this file may be distributed as part of a program
- +dnl that contains a configuration script generated by Autoconf, under
- +dnl the same distribution terms as the rest of that program.
- +
- +# Manages a stamp file, that keeps track when $(VERSION) was last changed.
- +#
- +# gl_CONFIG_VERSION_STAMP
- +# needs to be invoked near the end of the package's top-level configure.ac,
- +# before AC_OUTPUT.
- +# It makes sure that during the build,
- +# - $(top_srcdir)/.version exists, and
- +# - when $(VERSION) is changed, $(top_srcdir)/.version gets modified.
- +#
- +# $(top_srcdir)/.version is a stamp file. Its contents wouldn't matter,
- +# except that for detecting the change, we store the value of $(VERSION)
- +# in it (but we could just as well store it in a different file).
- +AC_DEFUN([gl_CONFIG_VERSION_STAMP],
- +[
- + AC_CONFIG_COMMANDS([version-timestamp],
- + [if test -f "$ac_top_srcdir/.version" \
- + && test `cat "$ac_top_srcdir/.version"` = "$gl_version"; then
- + # The value of $(VERSION) is the same as last time.
- + :
- + else
- + # The value of $(VERSION) has changed. Update the stamp.
- + echo "$gl_version" > "$ac_top_srcdir/.version"
- + fi
- + ],
- + [gl_version="$VERSION"])
- +])
- --- /dev/null
- +++ b/modules/version-stamp
- @@ -0,0 +1,19 @@
- +Description:
- +Optimized rebuilding of artifacts that depend on $(VERSION).
- +
- +Files:
- +m4/version-stamp.m4
- +
- +Depends-on:
- +
- +configure.ac:
- +
- +Makefile.am:
- +
- +Include:
- +
- +License:
- +GPLed build tool
- +
- +Maintainer:
- +Bruno Haible
|
