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Re: License question about Cygwin

RedHat has granted a special exception that allows any open source to link
to Cygwin.dll.

As the legal copyright holder, RedHat may grant any sort of exception to the
GPL they want, and are not bound to the GPL.   (This only applies to
Cygwin.dll and other components that RedHat can claim ownership for.)


----- Original Message ----- 
From: "Cary Lewis" <>
To: <>
Sent: Wednesday, July 16, 2003 11:23 AM
Subject: License question about Cygwin

> As the Cygwin.dll is licensed under GPL, any "Program" that links to it
> be released under GPL as well.
> My question is, what if the "Program" also links to proprietary .dlls that
> are authored by someone else. That source can not be published (I don't
> have access to it). Furthermore these .dlls are not freely available.
> Does that mean that even if I publish all of my source code, I would still
> be violating the GPL because I couldn't publish the source code to the
> proprietary libraries.
> Thanks for any help.
> --
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