M4 is an implementation of the M4 macro language, which features some extensions over other implementations, some of which are required by GNU Autoconf. It is used as a macro processor, which means it processes text, expanding macros as it encounters them. It also has some built-in functions, for example to run shell commands or to do arithmetic.
Selection from the FSF shop
If you have corrections to this entry or questions about it, please contact: mailto:firstname.lastname@example.org
released on 31 December 2016
OpenPGP signature URL: https://ftp.gnu.org/gnu/m4/m4-1.4.18.tar.xz.sig
Accepts cryptocurrency donations.
git clone git://git.savannah.gnu.org/m4.git
31 August 2010
31 August 2010
covers whole program
Leaders and contributors
|Gary V. Vaughan||Maintainer|
Resources and communication
|VCS Repository Webview||https://git.savannah.gnu.org/cgit/m4.git/|
This entry (in part or in whole) was last reviewed on 19 January 2019.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.
The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.