[vlc-devel] [vlc-commits] contrib: FreeType: require GPL
remi at remlab.net
Mon Sep 25 20:31:08 CEST 2017
Le maanantaina 25. syyskuuta 2017, 19.32.01 EEST Jean-Baptiste Kempf a écrit :
> Hello Rémi,
> Are you sure about that?
> https://freetype.org/freetype2/docs/index.html says:
> "FreeType is released under two open-source licenses: our own BSD-like
> FreeType License and the GNU Public License, Version 2. It can thus be
> used by any kind of projects, be they proprietary or not."
"- The FreeType License, found in the file `FTL.TXT', which is similar
to the original BSD license *with* an advertising clause that forces
you to explicitly cite the FreeType project in your product's
documentation. All details are in the license file. This license
is suited to products which don't use the GNU General Public
Note that this license is compatible to the GNU General Public
License version 3, but not version 2.
- The GNU General Public License version 2, found in `GPLv2.TXT' (any
later version can be used also), for programs which already use the
GPL. Note that the FTL is incompatible with GPLv2 due to its
So unless you patch the LibVLC app to advertise FreeType, the only option is
If somebody really knows what s/he is doing, i.e. actually adds the
advertisement clause in his/her non-GPL app, s/he can manually revert this
patch in his/her downstream LibVLC fork. That does not sound like a safe
assumption in upstream IMO.
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