[Qt-interest] Qt 4.5 Open Source (Windows) -- is it legal to redistribute the Qt DLLs?

[André Somers]

Hi,

"Kermit Mei" <kermit.mei at gmail.com> schreef in bericht 
news:gq2b51$lkf$1 at eple.troll.no...

> Oh, thanks. pthread.h is a part of GNU C Lib and it is published under
> LGPL too. But sir, I consider that GNU C must use the linux kernel's
> interface and libs? And if it use these GPLv2 based code, then it at
> least be GPLv2, but not LGPL.
>
> I know I'm not right, but I don't know why.

The rule of thumb is that the restrictions do not apply if the library is a 
system library. That is: you are allowed to link against something like the 
Linux kernel interface without disclosing your source. There are a lot of 
grey area's here. If your program is a normal application, you are safe. If 
it is something that interfaces much more closely to the kernel (like device 
drivers), then you may come into that grey area. That's why some distros do, 
and some don't distribute closed source drivers.

André