[Development] license question, bds 4 clause license text in qtbase\src\corelib\tools\qdatetime.cpp qt5.4.1 found

Sune Vuorela nospam at vuorela.dk
Sat Feb 28 08:10:09 CET 2015

> Well https://www.gnu.org/licenses/license-list.en.html says
> Original BSD license (#OriginalBSD)
> This license is also sometimes called the “4-clause BSD license”.
> This is a lax, permissive non-copyleft free software license with a serious flaw: the “obnoxious BSD advertising clause”. The flaw is not fatal; that is, it does not render the software nonfree. But it does cause practical problems, including incompatibility with the GNU GPL.
> but ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change says
> Effective immediately, licensees and distributors are no longer required to
> include the acknowledgement within advertising materials.  Accordingly, the
> foregoing paragraph of those BSD Unix files containing it is hereby deleted
> in its entirety.
> But does the week number code fall under the category  BSD Unix files ?
> So who is right her? GNU.org, Thiago ?  I am not a lawyer( thank god :-) ) or judge to decide this.

Everybody is right. 4-clause-BSD is incompatible with BSD, but as you
write yourself, the university of california has removed the obnoxious
clause from all their software, so it is just 3-clause licensed, even if
you have a old copy of it.

 - who also not is a lawyer.

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