Cygwin Commerial License?

Quality Quorum qqi at
Tue Jan 11 02:58:05 UTC 2000

On Mon, 10 Jan 2000, Smith, Gene wrote:

> Excuse me if this question has already been asked on the mailing list but I
> don't remember seeing it discussed while scanning through the archives.
> I am trying to decide on an environment for developing a possibly
> closed-source commercial application using rtems.  Currently, at work, I
> only have a 95/NT system.  I noticed that quite a few rtems users use CYGWIN
> for development on NT.  The cygnus website says that commercial (closed
> source) applications require a commercial cygwin license.  I assume a
> commercial cygwin license is required for closed-source NT embedded
> development also? 

I suppose that it is related to linking in cygwin libs. I suppose that
as long as you are using cygwin to host tools (e.g. for cross
development) there is no licensing involved.

> Alternatively, I could setup a linux box at work to do the development
> without cygwin. 

It will well paid off by lesser hassle and faster builds.

> I assume it is acceptable to create a closed-source
> commercial application using gnu tools, newlib and rtems in a linux
> environment? 

As long as you do not use nay GPL'ed code.

> Is my understanding of these issues correct?

It seems like mainly correct statement.

> -Gene



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