[Users] I wonder Geoext license

Christopher Schmidt crschmidt at crschmidt.net
Thu Apr 23 20:17:18 CEST 2009


On Thu, Apr 23, 2009 at 08:04:51PM +0200, Bart van den Eijnden (OSGIS) wrote:
> Hey Christopher,
>
> so what you are saying means using the ExtJS files from cachefly will  
> exempt your application from being GPL v3?

I don't know what Cachefly is, or how it relates to ExtJS. If the files from
Cachefly are licensed under the GPLv3, then the answer is no. If, for some
reason, they are under a different license, then the answer might be yes.
However, Ext does not provide a way to the public to use the library as a
library under anything other than the GPLv3. (The commercial license clearly
states "You can do pretty much anything except let other people use this ExtJS
license for ExtJS purposes only.")

(Okay, Cachefly is just a CDN.)

Because your application is using the GPLv3 code, it really doesn't matter where
they sit: in the same awy that building a seperate DLL doesn't allow you to 
avoid GPL. If Ext were LGPL, that would be reasonable: using cachefly would be a
fast way to say "nope, we're really not changing the code, so we don't have to
give anything back."  However, under GPL, if you touch the underlying code through
any programmatic interface, it's linking, and your application is then subject
to GPLv3.

Regards,
-- 
Christopher Schmidt
Web Developer


More information about the Users mailing list