Subject: Re: Copyleft license that allow inclusion in other program?
From: David Woolley <>
Date: Sun, 23 Aug 2009 00:48:09 +0100

S P Arif Sahari Wibowo wrote:
> Do you know whether there are any licenses that allow inclusion (more 
> than just linking) of the code into other program with other license, 
> but the license is still copyleft (albeit weak)?

Once you allow inclusion in a proprietary program, you tend to allow 
someone to wrap the functionality in such a way that people can access 
all the functions without receiving the copyleft rights.

Proprietary software libraries, where royalty free distribution of 
binaries is allowed, typically have a licence clause forbidding the 
creation of programs that expose the underlying functions of the library.

David Woolley
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