Since Porteus/Slackware doesn't have a build of Qt 5.8 yet, we are missing this useful framework. So the great news is that I've managed to create a xzm from Qt 5.8 Arch build by just creating a symlink inside /usr/lib pointing to /usr/lib64/qt and everything is working flawlessly.
http://www.mediafire.com/file/ezq8usc4g ... x86_64.xzm
(67 mb)
Qt 5.8 (framework)
Re: Qt 5.8 (framework)
Although the above package seems to work flawlessly when executing Qt apps, when trying to compile you may face a few paths issues. I've just fixed it now (same link).