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Re: [Bug-gnulib] missing licenses in gnulib / m4



On Tue, 5 Oct 2004 19:26:48 +0200 Bruno Haible wrote:

> Some m4 files are shared between GPLed and LGPLed packages, and it is
> frequent to copy m4 macros from one file to another (much more
> frequent than copying source code between .c files). For this reason,
> I think it would be best if all *.m4 files have the same copying
> conditions.
> 
> The purpose of the "special exception" clause is so that also
> non-GPLed packages can use autoconfiguration. We want to encourage the
> use of configure scripts and of portable programs.

In order to encourage the wide reuse of m4 macros even in proprietary
programs, you could consider releasing them under the Expat (a.k.a. MIT)
license: http://www.jclark.com/xml/copying.txt
It's a very short and simple non-copyleft free GPL-compatible license.


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