Re: [Matplotlib-users] [matplotlib-devel] License, freetype

[Paul H. <pmh...@gm...>]

Especially on Windows, I always install freetype from conda.
-p

On Sat, Feb 18, 2017 at 6:24 AM, CAB <ca...@ya...> wrote:

> Hi, Gents,
>
> Many thanks for your thoughtful responses!  Freetype is indeed available
> under a BSD-like licensse.  But when I tried to install freetype on my
> Windows system using the binary provided from GnuWin32, it attempts to
> force me to accept the GPL3, which I cannot.  Freetype's link to another
> binary supplied by GTK+ is broken.  So, I guess I have two choices; compile
> freetype from the source, or download something like Anaconda, which I'd
> rather not do because I have Python already installed.
>
> If you have any other ideas, I'd be happy to hear them.
>
> Best,
> Chad
>
>
> ------------------------------
> *From:* Joe Kington <jof...@gm...>
> *To:* Paul Hobson <pmh...@gm...>
> *Cc:* CAB <ca...@ya...>; Matplotlib Development List <
> mat...@li...>; Matplotlib Users <
> mat...@li...>
> *Sent:* Friday, February 17, 2017 5:03 PM
> *Subject:* Re: [matplotlib-devel] [Matplotlib-users] License, freetype
>
> Well, if Freetype were only distributed under the GPL, you couldn't
> distribute matplotlib in binary form without providing the source code.
>
> However, Freetype is distributed under more than one license.  (see:
> https://www.freetype.org/license.html )
>
> Because it's distributed under a BSD-style license in addition to the GPL,
> it can be distributed in binary form, subject to an accreditation clause:
> http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/docs/FTL.TXT
>
> In the past, I have gotten approval from corporate lawyers at a very large
> company to use freetype (and matplotlib) in an application that was being
> distributed in binary form.  The dual-licensing of freetype was key in that
> particular case.
>
> Or that's my take on it, anyway.  I'm not a Lawyer, so don't consider this
> legal advice in any way.
> Cheers!
> -Joe
>
> On Fri, Feb 17, 2017 at 4:52 PM, Paul Hobson <pmh...@gm...> wrote:
>
> Chad,
>
> My recollections is that matplotlib doesn't distribute the source code to
> FreeType, it only uses it as a dependency. As such, MPL is in the clear
> with its more permissive licensing.
> -Paul
>
> On Fri, Feb 17, 2017 at 12:45 PM, CAB <ca...@ya...> wrote:
>
> Hi, All,
>
> I just went to install matplotlib version 2.0.0, and it has a dependency
> called "freetype". This software appears to be licensed under GPL3.  My
> reading of that latter license is that, if someone wanted to distribute a
> compiled version of a program requiring matplotlib, that entire program
> would fall under the GPL3 license.  I'm sure that would be a non-starter
> for many, many projects.
>
> Does anyone have any takes on this?
>
> Chad
>
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