[postgis-users] Is PostGIS effectively LGPL?
bruce at momjian.us
Wed Dec 21 11:44:50 PST 2016
On Wed, Dec 21, 2016 at 02:12:36PM -0500, Regina Obe wrote:
> I wouldn't say essentially LGPL.
> The thing is that when PostGIS is used, it is via linking or the psql
> and similar driver API. So e.g. PostgreSQL can exist without PostGIS
> and your software can call PostGIS functions without embedding PostGIS
> into it and alls stored functions are in source code anyway if you
> sell to a customer.
Well, some companies modify the Postgres server and ship a closed-source
binary, plus some people have compiled C functions or extensions that
might be closed source.
> It falls under this exception:
Well, I am sure some do ship PostGIS along with the closed-source
Postgres backend binary, and the system library exception excludes that.
> Now if you were to take the source code of PostGIS and compile it into
> your own software, then your software I think would then be governed
> by the
> https://www.gnu.org/licenses/gpl-faq.en.html#IfLibraryIsGPL you
Right. I am asking more about dymanic linking into the Postgres server
Bruce Momjian <bruce at momjian.us> http://momjian.us
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