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

[Shingo Ishida]

On Mon Mar 23 14:48:32 JST 2009
Kermit Mei <kermit.mei at gmail.com> wrote:

> All the C headers are said that they are LGPL, but C++ headers shows
> GPL.
> 
> I also found that qt-apps always link to libstdc++, does it means that
> the LGPL of Qt can't be used with gcc? 

No. We can link to libstdc++ without restriction.
libstdc++ is licensed not under "pure GPL" but "GPL plus runtime exception". 

See:
http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt01ch01s02.html 
http://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.license 

Shingo Ishida