[Ironruby-core] zlib implementation

M. David Peterson m.david at xmlhacker.com
Wed Sep 12 20:33:01 EDT 2007

On Wed, 12 Sep 2007 18:02:56 -0600, John Lam (CLR) <jflam at microsoft.com>  

> I think we’ll wind up redistributing the compiled binary of zlib.net  
> with IronRuby with a multiple license agreement. We need to run this  
> past the lawyers, but I’m pretty confident that shipping a BSD licensed  
> component alongside of our MsPL code should be OK. Worst case we get  
> someone in the community a’la Curt Hibbs to help us package this stuff  
> up J

@ http://www.icsharpcode.net/OpenSource/SharpZipLib/

#ziplib (SharpZipLib, formerly NZipLib) is a Zip, GZip, Tar and BZip2  
library written entirely in C# for the .NET platform. It is implemented as  
an assembly (installable in the GAC), and thus can easily be incorporated  
into other projects (in any .NET language). The creator of #ziplib put it  
this way: "I've ported the zip library over to C# because I needed  
gzip/zip compression and I didn't want to use libzip.dll or something like  
this. I want all in pure C#."

The library is released under the GPL with the following exception:

Linking this library statically or dynamically with other modules is  
making a combined work based on this library. Thus, the terms and  
conditions of the GNU General Public License cover the whole combination.

As a special exception, the copyright holders of this library give you  
permission to link this library with independent modules to produce an  
executable, regardless of the license terms of these independent modules,  
and to copy and distribute the resulting executable under terms of your  
choice, provided that you also meet, for each linked independent module,  
the terms and conditions of the license of that module. An independent  
module is a module which is not derived from or based on this library. If  
you modify this library, you may extend this exception to your version of  
the library, but you are not obligated to do so. If you do not wish to do  
so, delete this exception statement from your version.

Note The exception is changed to reflect the latest GNU Classpath  
exception. Older versions of #ziplib did have another exception, but the  
new one is clearer and it doesn't break compatibility with the old one.

Bottom line In plain English this means you can use this library in  
commercial closed-source applications.


M. David Peterson
http://mdavid.name | http://www.oreillynet.com/pub/au/2354 |  

More information about the Ironruby-core mailing list