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comp.lang.ruby

Re: Why ruby license?

Yukihiro Matsumoto

4/10/2009 8:46:00 AM

Hi,

In message "Re: Why ruby license?"
on Thu, 9 Apr 2009 16:46:07 +0900, Johan Gustav <johan.postbox@gmail.com> writes:

|1. Why has Ruby its own license and are not licensed under something
|like the Apache license?

Just because Ruby is older than Apache.

|2. Why is Ruby not dual license with the Apache license, rather then the
|GPL? which I understand is more closer to the ruby license and not as
|restrictive as the GPL license?

It needs GPL dual to accomplish GPL compatibility. I don't want to
see any problem linking with GPL libraries, e.g. readline.

matz.
1 Answer

Jeff Schwab

4/10/2009 11:07:00 AM

0

Yukihiro Matsumoto wrote:

> |Why is Ruby not dual license with the Apache license, rather then the
> |GPL? which I understand is more closer to the ruby license and not as
> |restrictive as the GPL license?
>
> It needs GPL dual to accomplish GPL compatibility. I don't want to
> see any problem linking with GPL libraries, e.g. readline.

Thank you. This kind of licensing makes it a lot easier to justify GPL
development at commercial software development companies.