qt5 as default?

[Rex Dieter]

Antti J=?iso-8859-1?B?5A==?=rvinen wrote:

> There is also same decision to make regarding libraries that have not been
> re-packaged to support both qt4 and qt5. One good example is
> https://admin.fedoraproject.org/pkgdb/package/qjson/
> -> there is no separate binary package libqjson-qt5 and libqjson-qt4. The
> library from source works all right with both but if the library is
> built and linked against qt4, it can also be used to build application
> that links against qt5 and everything goes all right. Only downside is
> immediate SIGSEGV when you invoke methods from the library :)

For libraries that support both, the general best practice is to change 
library soname for Qt5 builds, to ensure the scenarios you describe doesn't 
happen accidentally.

-- Rex