running shell commands, doing arithmetic, etc. Autoconf needs GNU
`m4' for generating `configure' scripts, but not for running them.
-GNU `m4' was originally written by Rene' Seindal, from Denmark.
+GNU `m4' was originally written by René Seindal, from Denmark.
This release is considered stable.
If GNU `m4' is meant to serve GNU `autoconf', beware that `m4'
file HACKING.
M4 has an optional dependency on the libsigsegv library:
- http://www.gnu.org/software/libsigsegv/
+ https://www.gnu.org/software/libsigsegv/
If the library has not been installed in the standard location, you
can use `./configure --with-libsigsegv-prefix=/path/to/dir', to make
the build of `m4' use /path/to/dir/include/sigsegv.h as appropriate.
For any copyright year range specified as YYYY-ZZZZ in this package
note that the range specifies every single year in that closed interval.
+GNU Project notice
+==================
+GNU M4 is part of the GNU Operating System, developed by the GNU Project.
+
+If you are the author of an awesome program and want to join us in
+writing Free (libre) Software, please consider making it an official
+GNU program and become a GNU Maintainer. Instructions on how to do
+this are here:
+ https://www.gnu.org/help/evaluation
+
+Don't have a program to contribute? Look at all the other ways to help:
+ https://www.gnu.org/help/help.html
+
+And to learn more about Free (libre) Software in general, please read
+and share this page:
+ https://gnu.org/philosophy/free-sw.html
+
+We are looking forward to hacking with you!
+
========================================================================
-Copyright (C) 2000, 2005-2013 Free Software Foundation, Inc.
+Copyright (C) 2000, 2005-2014, 2016-2017, 2020-2021 Free Software
+Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or