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

Knoll Lars Lars.Knoll at digia.com
Tue Dec 11 10:18:35 CET 2012

+1 from my side. Let's get that in today.


On Dec 11, 2012, at 10:01 AM, Samuel Rødal <samuel.rodal at digia.com> 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.
> --
> Samuel
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