GPL FAQ 3877
The above is an buttertion of the opposite of the statements made by myself and others, not a request for clarification.
Well of course! (though I don't know if I said that or not - it is true anyway).
I would hope not! The whole idea is that if you don't have rights to build on somebdy elses code and redistribute it under GPL, then you can't include in in your GPL code. It doesn't seem to me that that could possibly require any "clarification"!
You cannot distribute GPL code that IS linked with zlib (buttuming zlib is not gpl). You may well be able to distribute both of them (according to whatever licence zlib is under), and leave it to the recipient to do the linking. That is the normal situation!
If you distribute the GPL code linked with zlib, then you are breaking at least one of the licenses, very probably. Which you are breaking depends. But one never distributes code like that. Leave it to the recipient to do the linking. And be careful to distribute the two separately (if you have the right to do so), just to avoid any confusion.
It is completely the opposite of what is being said by myself and others, in the referenced message or elsewhere. Then it is completely nuts. We are all saying that linking GPL...
You can always restate the licence as you like for new downloads. Then it would be a question of under which licence people received the code from you.
Linking is automatic in most systems that support dynamic linking.
Peter