> > How is MySQL doing it? They say they use GPL license, but they do not allow commercial use or packaging with commercial products? > > Anyway, MySQL requires a paid license if you either link your (non-free) code directly with MySQL, or if it requires MySQL and you ship > it with MySQL included. (MySQL client-side code is not included in this rule, since it is LGPLed.)
I don't get it: why would MySQL require a commercial license if you only *ship* your (commercial) product "that requires MySQL" with MySQL server? GPL infamously states: "...mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License." GPL fag practically gives up in explaining what this means: "What constitutes combining two parts into one program? This is a legal question, which ultimately judges will decide." Obviously the meaning of "not based on the Program" is very unclear and should be therefore interpreted in favor of the user of the license (who has no negotiation power). Consider this example: is a graphical MySQL client "based on MySQL"? Someone could say yes. Then, what if the client is general enough that it can access many different databases? I would say it is not based on MySQL and to keep that logic a database client that can solely access MySQL should be - quite oddly - "not based on MySQL". Regards, Mikko -- license-discuss archive is at http://crynwr.com/cgi-bin/ezmlm-cgi?3
