Re: Tuned Linux kernel integrated with Windows
The GPL is viral in the sense that if you modify GPL code, then the modified code must also be released under the GPL.
However, there is nothing about the GPL that says that the code that uses it must also be GPL'd. You can use a GPL'd library in your closed-source project, for instance, without having to put your entire project under GPL. The requirement is that any changes you make to the library itself are also GPL'd.