GMP license: COPYING file (GPL) and LGPLv3
pesec.il at gmail.com
Mon Mar 17 20:17:53 UTC 2014
For somewhat reason my previous reply does not appear in archives, so I
repeat it, rephrased.
On 2014-03-17 20:40, Torbjorn Granlund wrote:
> "pesec.il" <pesec.il at gmail.com> writes:
> Hello, colleagues.
> I see that the GMP site (https://gmplib.org/manual/Copying.html) tells
> GMP has LGPL license:
> The precise conditions of the license for the GNU MP library are
> found in the Lesser General Public License version 3 that
> accompanies the source code, see COPYING.LIB. Certain demonstration
> programs are provided under the terms of the plain General Public
> License version 3, see COPYING.
> But when I look at the README file in GMP 5.1.3 source distribution, it
> GNU MP is free software and may be freely copied on the terms
> contained in the files COPYING.LIB and COPYING (most of GNU MP
> is under the former, some under the latter).
> Are you suggesting there is a contradicton here?
It's not a contradiction. I'd like to use GMP in a closed-source
product. Thus, I cannot use GPL, only LGPL.
After 5 years gmplib.org site contents may change. But I still shall
have a proof that GMP version I use and distribute is covered under
LGPL. As long as there are 2 license texts, and their coverage is not
understood from README, I won't be able to prove that I do not violate GPL.
> So, the README file does not explicitly say what is licensed under GPL
> and what is licensed under LGPL.
> Clearly, the README file cannot give the detail of a 150-page manual.
Sure, but the README file already dedicates tens of lines to the
licensing terms. Why not to be precise at least like
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