ALL: updated m4 distribution format

The markup format distributed by the Autoconf Macro Archive underwent
the following changes:

 * All archive entries use '#' comment delimiters, rather than 'dnl',
   because we would like those comments to go into the generated
   configure script. It should be simple for everyone to determine
   where the macro came from originally, who wrote it, and where the
   latest version can be retrieved. To achieve this, every macro used
   to start with a distinguished line that shows the URL of its
   respective home page, i.e.:

   | ##### http://autoconf-archive.cryp.to/ax_prog_acme.html

   As it happens, the aclocal utility distributed with Automake
   ignores all comment lines that start with a double hash '##', thus
   those home page URLs will not make it into any automatically
   generated aclocal.m4 file. Duh. To remedy the situation, the
   following markup is now used instead:

   | # =================================================================
   | #        http://autoconf-archive.cryp.to/ax_prog_acme.html
   | # =================================================================

 * The 2.x versions of the GNU GPL and LGPL contain the following
   clause:

   | You should have received a copy of the <GNU LICENSE NAME> along
   | with this program; if not, write to the Free Software Foundation,
   | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

   Version 3.x, however, smartly refers the reader to the Web:

   | You should have received a copy of the GNU General Public License
   | along with this program. If not, see <http://www.gnu.org/licenses/>.

   This patch changes all GPL2 and LGPL2 macros to do the same, i.e.
   to refer to the GNU web site for the full text of the respective
   license. 

 * Since all m4 files had to be changed in this commit anyway, the
   opportunity was used to increase the auto-fill column for
   documentation from 65 to 75 characters per line. It's a trivial
   change, but it just looks nicer.

1 files changed, 57 insertions, 61 deletions

diff --git a/m4/ax_prefix_config_h.m4 b/m4/ax_prefix_config_h.m4
index 7948164..83f8df6 100644
--- a/m4/ax_prefix_config_h.m4
+++ b/m4/ax_prefix_config_h.m4
@@ -1,4 +1,6 @@
-##### http://autoconf-archive.cryp.to/ax_prefix_config_h.html
+# ===========================================================================
+#           http://autoconf-archive.cryp.to/ax_prefix_config_h.html
+# ===========================================================================
 #
 # SYNOPSIS
 #
@@ -8,16 +10,16 @@
 #
 #   This is a new variant from ac_prefix_config_ this one will use a
 #   lowercase-prefix if the config-define was starting with a
-#   lowercase-char, e.g. "#define const", "#define restrict", or
-#   "#define off_t", (and this one can live in another directory, e.g.
-#   testpkg/config.h therefore I decided to move the output-header to
-#   be the first arg)
+#   lowercase-char, e.g. "#define const", "#define restrict", or "#define
+#   off_t", (and this one can live in another directory, e.g.
+#   testpkg/config.h therefore I decided to move the output-header to be the
+#   first arg)
 #
-#   takes the usual config.h generated header file; looks for each of
-#   the generated "#define SOMEDEF" lines, and prefixes the defined
-#   name (ie. makes it "#define PREFIX_SOMEDEF". The result is written
-#   to the output config.header file. The PREFIX is converted to
-#   uppercase for the conversions.
+#   takes the usual config.h generated header file; looks for each of the
+#   generated "#define SOMEDEF" lines, and prefixes the defined name (ie.
+#   makes it "#define PREFIX_SOMEDEF". The result is written to the output
+#   config.header file. The PREFIX is converted to uppercase for the
+#   conversions.
 #
 #   Defaults:
 #
@@ -25,10 +27,9 @@
 #     PREFIX = $PACKAGE
 #     ORIG-HEADER, from AM_CONFIG_HEADER(config.h)
 #
-#   Your configure.ac script should contain both macros in this order,
-#   and unlike the earlier variations of this prefix-macro it is okay
-#   to place the AX_PREFIX_CONFIG_H call before the AC_OUTPUT
-#   invokation.
+#   Your configure.ac script should contain both macros in this order, and
+#   unlike the earlier variations of this prefix-macro it is okay to place
+#   the AX_PREFIX_CONFIG_H call before the AC_OUTPUT invokation.
 #
 #   Example:
 #
@@ -41,10 +42,9 @@
 #     AC_OUTPUT(Makefile)                 # creates the "config.h" now
 #                                         # and also mylib/_config.h
 #
-#   if the argument to AX_PREFIX_CONFIG_H would have been omitted then
-#   the default outputfile would have been called simply
-#   "testpkg-config.h", but even under the name "mylib/_config.h" it
-#   contains prefix-defines like
+#   if the argument to AX_PREFIX_CONFIG_H would have been omitted then the
+#   default outputfile would have been called simply "testpkg-config.h", but
+#   even under the name "mylib/_config.h" it contains prefix-defines like
 #
 #     #ifndef TESTPKG_VERSION
 #     #define TESTPKG_VERSION "0.1.1"
@@ -57,26 +57,26 @@
 #     #endif
 #
 #   and this "mylib/_config.h" can be installed along with other
-#   header-files, which is most convenient when creating a shared
-#   library (that has some headers) where some functionality is
-#   dependent on the OS-features detected at compile-time. No need to
-#   invent some "mylib-confdefs.h.in" manually. :-)
+#   header-files, which is most convenient when creating a shared library
+#   (that has some headers) where some functionality is dependent on the
+#   OS-features detected at compile-time. No need to invent some
+#   "mylib-confdefs.h.in" manually. :-)
 #
-#   Note that some AC_DEFINEs that end up in the config.h file are
-#   actually self-referential - e.g. AC_C_INLINE, AC_C_CONST, and the
-#   AC_TYPE_OFF_T say that they "will define inline|const|off_t if the
-#   system does not do it by itself". You might want to clean up about
-#   these - consider an extra mylib/conf.h that reads something like:
+#   Note that some AC_DEFINEs that end up in the config.h file are actually
+#   self-referential - e.g. AC_C_INLINE, AC_C_CONST, and the AC_TYPE_OFF_T
+#   say that they "will define inline|const|off_t if the system does not do
+#   it by itself". You might want to clean up about these - consider an
+#   extra mylib/conf.h that reads something like:
 #
 #      #include <mylib/_config.h>
 #      #ifndef _testpkg_const
 #      #define _testpkg_const const
 #      #endif
 #
-#   and then start using _testpkg_const in the header files. That is
-#   also a good thing to differentiate whether some library-user has
-#   starting to take up with a different compiler, so perhaps it could
-#   read something like this:
+#   and then start using _testpkg_const in the header files. That is also a
+#   good thing to differentiate whether some library-user has starting to
+#   take up with a different compiler, so perhaps it could read something
+#   like this:
 #
 #     #ifdef _MSC_VER
 #     #include <mylib/_msvc.h>
@@ -89,43 +89,39 @@
 #
 # LAST MODIFICATION
 #
-#   2007-01-17
+#   2008-04-12
 #
 # COPYLEFT
 #
-#   Copyright (c) 2007 Guido U. Draheim <guidod@gmx.de>
-#   Copyright (c) 2007 Marten Svantesson
-#   Copyright (c) 2007 Gerald Point <Gerald.Point@labri.fr>
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2008 Marten Svantesson
+#   Copyright (c) 2008 Gerald Point <Gerald.Point@labri.fr>
 #
-#   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 the Free Software Foundation; either version 2 of the
-#   License, or (at your option) any later version.
+#   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 the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
 #
 #   This program is distributed in the hope that it will be useful, but
 #   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-#   General Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License
-#   along with this program; if not, write to the Free Software
-#   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-#   02111-1307, USA.
-#
-#   As a special exception, the respective Autoconf Macro's copyright
-#   owner gives unlimited permission to copy, distribute and modify the
-#   configure scripts that are the output of Autoconf when processing
-#   the Macro. You need not follow the terms of the GNU General Public
-#   License when using or distributing such scripts, even though
-#   portions of the text of the Macro appear in them. The GNU General
-#   Public License (GPL) does govern all other use of the material that
-#   constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the
-#   Autoconf Macro released by the Autoconf Macro Archive. When you
-#   make and distribute a modified version of the Autoconf Macro, you
-#   may extend this special exception to the GPL to apply to your
-#   modified version as well.
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Macro Archive. When you make and
+#   distribute a modified version of the Autoconf Macro, you may extend this
+#   special exception to the GPL to apply to your modified version as well.
 
 AC_DEFUN([AX_PREFIX_CONFIG_H],[dnl
 AC_BEFORE([AC_CONFIG_HEADERS],[$0])dnl