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From 15e4365267e316f15222b8bf9f0a7cd0db231e9c Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sun, 8 Aug 2021 01:58:42 +0200
Subject: [PATCH] Make gl_INIT_PACKAGE work with Automake >= 1.16.4.
Reported and analyzed by Nicole Mazzuca <mazzucan@outlook.com> in
<https://lists.gnu.org/archive/html/bug-libunistring/2021-08/msg00002.html>.
* m4/init-package-version.m4 (gl_INIT_PACKAGE): Use a new macro
gl_INIT_EMPTY.
(gl_INIT_DUMMY): Expand to empty in two steps, via a new macro
gl_INIT_DUMMY2.
Upstream-Status: Backport
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
---
ChangeLog | 10 ++++++++++
m4/init-package-version.m4 | 12 ++++++++----
2 files changed, 18 insertions(+), 4 deletions(-)
diff --git a/m4/init-package-version.m4 b/m4/init-package-version.m4
index f131a84..a26b1ab 100644
--- a/m4/init-package-version.m4
+++ b/m4/init-package-version.m4
@@ -1,5 +1,5 @@
-# init-package-version.m4 serial 1 (gettext-0.18)
-dnl Copyright (C) 1992-2009 Free Software Foundation, Inc.
+# init-package-version.m4 serial 2
+dnl Copyright (C) 1992-2021 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
@@ -77,7 +77,7 @@ AC_DEFUN([gl_INIT_PACKAGE],
m4_bpatsubst(m4_dquote(
m4_defn([AM_INIT_AUTOMAKE])),
[AC_PACKAGE_NAME], [gl_INIT_DUMMY])),
- [AC_PACKAGE_TARNAME], [gl_INIT_DUMMY])),
+ [AC_PACKAGE_TARNAME], [gl_INIT_EMPTY])),
[AC_PACKAGE_VERSION], [gl_INIT_DUMMY])
[AC_SUBST([PACKAGE], [$1])
AC_SUBST([VERSION], [$2])
@@ -85,7 +85,11 @@ AC_DEFUN([gl_INIT_PACKAGE],
m4_define([AM_INIT_AUTOMAKE],
m4_defn([gl_RPL_INIT_AUTOMAKE]))
])
-m4_define([gl_INIT_DUMMY], [])
+m4_define([gl_INIT_EMPTY], [])
+dnl Automake 1.16.4 no longer accepts an empty value for gl_INIT_DUMMY.
+dnl But a macro that later expands to empty works.
+m4_define([gl_INIT_DUMMY], [gl_INIT_DUMMY2])
+m4_define([gl_INIT_DUMMY2], [])
AC_DEFUN([gl_RPL_INIT_AUTOMAKE], [
m4_ifval([$2],
[m4_fatal([After gl_INIT_PACKAGE, the two-argument form of AM_INIT_AUTOMAKE cannot be used.])])
--
2.20.1
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