QProcess::startCommand deprecation

[Jean-Marc Lasgouttes]

Le 18/05/2021 à 11:02, Jean-Marc Lasgouttes a écrit :
> Hi,
> 
> I have been looking at backporting the following commit to stble (the 
> last warning I see):
> 
> commit 9f92fc92bdd41c367b0975454a01c15403d51a60
> Author: Juergen Spitzmueller <spitz at lyx.org>
> Date:   Fri Mar 12 12:14:42 2021 +0100
> 
>      Yet another deprecation fix (this is the last one I am aware of)
> 
> 
> This uses QProcess::startDetached(cmd, args) instead of 
> QProcess::startDetached(cmd + args) for Qt >= 5.15.
> 
> I have a question though. I see that this new form already exists in Qt4
> https://doc.qt.io/archives/qt-4.8/qprocess.html

Now that I tried it, I see that the problem is QProcess::splitCommand(). 
I added a comment at  67c85f54c.

However, the best solution would be to have parsecmd() do the splitting 
instead of taking great length to create a command line that QProcess 
accepts.

I will backport both patches to stable now.

JMarc