From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 19 Apr 2006 23:26:18 +0000 (+0000)
Subject: Comments about autoconf-2.60.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e3c97a52a631cf515718e8e50394afded5c94dd;p=pspp

Comments about autoconf-2.60.
---

diff --git a/m4/extensions.m4 b/m4/extensions.m4
index 51394b5c84..4976079186 100644
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@@ -5,6 +5,9 @@
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
+# This file is only needed in autoconf <= 2.59.  Newer versions of autoconf
+# have a macro AC_USE_SYSTEM_EXTENSIONS with identical semantics.
+
 # gl_USE_SYSTEM_EXTENSIONS
 # ------------------------
 # Enable extensions on systems that normally disable them,