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Id: #26
System Name: m4
Name: GNU M4
Group Type: Official GNU software

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This project is part of the GNU Project.

GNU M4 is an implementation of the traditional Unix macro processor. It is mostly SVR4 compatible although it has some extensions (for example, handling more than 9 positional parameters to macros). GNU m4 also has built-in functions for including files, running shell commands, doing arithmetic, etc.

GNU M4 is a macro processor in the sense that it copies its input to the output expanding macros as it goes. Macros are either builtin or user-defined and can take any number of arguments. Besides just doing macro expansion m4 has builtin functions for including named files, running UNIX commands, doing integer arithmetic, manipulating text in various ways, recursion etc... m4 can be used either as a front-end to a compiler or as a macro processor in its own right.

One of the biggest users of GNU M4 is the GNU Autoconf project.

Registration Date: Thu 25 Jan 2001 02:56:10 PM UTC
License: GNU General Public License v3 or later
Development Status: 5 - Production/Stable

 

Latest News 
GNU M4 1.4.12 released
     posted by ericb, Sat 11 Oct 2008 01:18:16 PM UTC - 0 replies

See the release announcement here:
http://lists.gnu.org/archive/html/m4-announce/2008-10/msg00000.html

This release adds an optional dependency on GNU libsigsegv:
http://www.gnu.org/software/libsigsegv/

This is (hopefully) the last release of the stable 1.4.x series; the next stable release will be M4 1.6.

GNU M4 1.4.11 released
     posted by ericb, Wed 02 Apr 2008 07:17:29 PM UTC - 0 replies

See the release announcement here:
http://lists.gnu.org/archive/html/m4-announce/2008-04/msg00000.html

This is the last release of the stable 1.4.x series; the next stable release will be M4 1.6.

M4 repository transitions to git
     posted by ericb, Wed 19 Sep 2007 10:37:51 PM UTC - 0 replies

M4 development can now be tracked via git access, rather than CVS. See https://savannah.gnu.org/git/?group=m4 for details. For now, the git and CVS repositories are manually synced. Eventually, CVS write access will be disabled, but the plan is to leave CVS read access.

GNU M4 1.4.10 released
     posted by ericb, Wed 22 Aug 2007 07:49:29 PM UTC - 0 replies

This is the first M4 release to use GPLv3+.

See the release announcement here:
http://lists.gnu.org/archive/html/m4-announce/2007-07/msg00000.html


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