Recommend M4 1.4.11

[Eric Blake]

The release of M4 1.4.11 was one of the last show-stoppers for Autoconf 2.62.  
I'm committing this, then starting my efforts on preparing the release; 
hopefully I will have the official tarball uploaded within the next 48 hours or 
so.  The release will be GPLv2+ plus exception (ie. unchanged from 2.61); 
hopefully, the FSF lawyers will resolve the holdups that prevented this release 
from being GPLv3+ plus exception in time for the next release.

As a reminder, Autoconf 2.62 will work out of the box with the planned M4 1.6, 
but unpatched Autoconf 2.59 will not, due to a planned change in semantics of 
the m4wrap builtin in M4 1.6 to comply with POSIX.

From: Eric Blake <address@hidden>
Date: Wed, 2 Apr 2008 13:21:33 -0600
Subject: [PATCH] Recommend the just-released M4 1.4.11.

* NEWS: Update recommendation.
* README: Likewise.
* doc/autoconf.texi (Introduction): Likewise.
* m4/m4.m4 (AC_PROG_GNU_M4): Likewise.

Signed-off-by: Eric Blake <address@hidden>
---
 ChangeLog         |    8 ++++++++
 NEWS              |    2 +-
 README            |    4 ++--
 doc/autoconf.texi |    2 +-
 m4/m4.m4          |    6 +++---
 5 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index daeda05..82d722e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2008-04-02  Eric Blake  <address@hidden>
+
+       Recommend the just-released M4 1.4.11.
+       * NEWS: Update recommendation.
+       * README: Likewise.
+       * doc/autoconf.texi (Introduction): Likewise.
+       * m4/m4.m4 (AC_PROG_GNU_M4): Likewise.
+
 2008-04-01  Eric Blake  <address@hidden>
 
        * lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Bump
diff --git a/NEWS b/NEWS
index 3d24e69..4121564 100644
--- a/NEWS
+++ b/NEWS
@@ -91,7 +91,7 @@ GNU Autoconf NEWS - User visible changes.
 
 ** Autoconf now requires GNU M4 1.4.5 or later.  Earlier versions of M4 have
    a bug in macro tracing that interferes with the interaction between
-   Autoconf and Automake.  GNU M4 1.4.8 or later is recommended.  The
+   Autoconf and Automake.  GNU M4 1.4.11 or later is recommended.  The
    configure search for a working M4 is improved.
 
 ** Documentation for m4sugar is improved.
diff --git a/README b/README
index 2d80888..303b5ae 100644
--- a/README
+++ b/README
@@ -12,7 +12,7 @@ macro calls.
 
 Producing configuration scripts using Autoconf requires GNU M4 and
 Perl.  You should install GNU M4 (version 1.4.5 or later is required;
-1.4.8 or later is recommended) and Perl (5.005_03 or later) before
+1.4.11 or later is recommended) and Perl (5.005_03 or later) before
 configuring Autoconf, so that Autoconf's configure script can find
 them.  The configuration scripts produced by Autoconf are
 self-contained, so their users do not need to have Autoconf (or GNU
@@ -43,7 +43,7 @@ similarly for the other mailing lists.
 -----
 
 Copyright (C) 1992, 1993, 1994, 1998, 2000, 2001, 2002, 2003, 2004,
-2005, 2006, 2007 Free Software Foundation, Inc.
+2005, 2006, 2007, 2008 Free Software Foundation, Inc.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index dc06bab..7a8b2ef 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -717,7 +717,7 @@ Autoconf imposes some restrictions on the names of macros 
used with
 Autoconf requires @acronym{GNU} M4 version 1.4.5 or later in order to
 generate the scripts.  It uses features that some versions of M4,
 including @acronym{GNU} M4 1.3, do not have.  Autoconf works better
-with @acronym{GNU} M4 version 1.4.8 or later, though this is not
+with @acronym{GNU} M4 version 1.4.11 or later, though this is not
 required.
 
 @xref{Autoconf 1}, for information about upgrading from version 1.
diff --git a/m4/m4.m4 b/m4/m4.m4
index 25cc7fa..f27d8c0 100644
--- a/m4/m4.m4
+++ b/m4/m4.m4
@@ -1,5 +1,5 @@
-# m4.m4 serial 4
-dnl Copyright (C) 2000, 2006, 2007 Free Software Foundation, Inc.
+# m4.m4 serial 5
+dnl Copyright (C) 2000, 2006, 2007, 2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -26,7 +26,7 @@ AC_PATH_PROGS_FEATURE_CHECK([M4], [m4 gm4 gnum4],
       && ac_cv_path_M4=$ac_path_M4 ac_path_M4_found=:
       rm -f conftest.m4f],
       [AC_MSG_ERROR([no acceptable m4 could be found in \$PATH.
-GNU M4 1.4.5 or later is required; 1.4.8 is recommended])])])
+GNU M4 1.4.5 or later is required; 1.4.11 is recommended])])])
   M4=$ac_cv_path_M4
   AC_CACHE_CHECK([how m4 supports trace files], [ac_cv_prog_gnu_m4_debugfile],
     [case `$M4 --help < /dev/null 2>&1` in
-- 
1.5.4