From: Jim Meyering <jim@meyering.net>
Date: Fri, 14 Mar 2003 15:40:34 +0000 (+0000)
Subject: (prev_version_file): Don't use ?= for this particular
X-Git-Tag: v4.5.11~87
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=daab2ee48703cb99f04c5180b31e664658cc0eeb;p=thirdparty%2Fcoreutils.git

(prev_version_file): Don't use ?= for this particular
assignment, since it causes trouble with old versions of GNU make
(e.g. 3.76.1).  The other uses of `?=' are inoffensive.  Details here.
http://mail.gnu.org/archive/html/bug-coreutils/2003-03/msg00028.html
Patch from Alexandre Duret-Lutz.
---

diff --git a/Makefile.maint b/Makefile.maint
index e0f6776f92..30b3dea059 100644
--- a/Makefile.maint
+++ b/Makefile.maint
@@ -24,7 +24,9 @@ GZIP_ENV = '--no-name --best'
 
 CVS = cvs
 
-prev_version_file ?= .prev-version
+ifeq ($(origin prev_version_file), undefined)
+  prev_version_file = .prev-version
+endif
 
 PREV_VERSION := $(shell cat $(prev_version_file))