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https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=31f673434ee402258b45e958c88acc8725d82b1a
https://savannah.gnu.org/bugs/?63040
https://bugs.gentoo.org/869257
From 31f673434ee402258b45e958c88acc8725d82b1a Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Fri, 9 Sep 2022 16:54:11 -0500
Subject: Port to GNU make 4.4
* cfg.mk (PATH): Assign eagerly, and simplify shell use, avoiding
use of the shell entirely if PWD is set, as it should be.
Problem reported by Sergei Trofimovich in:
https://lists.gnu.org/r/autoconf-patches/2022-09/msg00007.html
--- a/cfg.mk
+++ b/cfg.mk
@@ -18,7 +18,7 @@
# This file is '-include'd into GNUmakefile.
# Build with our own versions of these tools, when possible.
-export PATH = $(shell echo "`pwd`/tests:$$PATH")
+export PATH := $(or $(PWD),$(shell pwd))/tests:$(PATH)
# Remove the autoreconf-provided INSTALL, so that we regenerate it.
_autoreconf = autoreconf -i -v && rm -f INSTALL
cgit v1.1
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