[Development] Making sure all platform plugin library names are prefixed with "q"

Samuel Rødal samuel.rodal at digia.com
Tue Dec 11 16:01:06 CET 2012

On 12/11/2012 10:01 AM, Samuel Rødal wrote:
> Hello,
> currently the platform plugin library name is a bit inconsistent. In
> most cases it will have the "q" prefix, for instance libqeglfs.so,
> libqminimal.so, libqcocoa.so, etc.
> However, the qnx, windows, and xcb libraries were named libqnx.so,
> libwindows.so, and libxcb.so respectively. The latter might be
> especially problematic since the system xcb library is typically also
> called libxcb.so.
> The static linking support currently assumed the latter, non-prefixed
> library names, which means static linking is currently broken with any
> of the other platform plugins.
> The proposal is to always prefix the library names with "q", for
> consistency and avoiding name clashes:
> https://codereview.qt-project.org/#change,42347
> This doesn't affect the platform key used with the QT_QPA_PLATFORM env
> variable or the "-platform" command line argument, it will still be
> "xcb" in the xcb platform plugin case for instance.
> The only risk I can see is that stale plugins will be lying around in
> the build directories of people doing incremental builds. That might
> mean a few people could end up using a slightly older plugin version
> without newer fixes for a short while. When / if the change gets merged
> I will send another mail reminding people to delete their
> plugins/platforms directory before updating to the latest stable.

Merged. Once you pull in the latest qtbase/stable changes you might want 
to do a clean rebuild or manually remove the plugins/platforms/ 
directory of your build dir, to ensure that you don't get stuck using an 
older version of the platform plugin.


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