[Development] Issues with latest Qt6 snapshot on Windows

[Sandro Andrade]

On Fri, Jul 24, 2020 at 6:58 AM Alexandru Croitor
<alexandru.croitor at qt.io> wrote:
>
>
>
> > On 24. Jul 2020, at 05:59, Sandro Andrade <sandroandrade at kde.org> wrote:
> >
> > Hi there,
>
> Hi!
>
> >
> > I'm trying the latest Qt6 snapshot provided by the official installer
> > on Windows 10 with MSVC 2019.
>
> Thanks for providing feedback!
>
> >
> > I've noticed that QMake builds work fine only in Release mode.
> > Building in Debug mode generates a:
> >
> > qtmaind.lib(qtmain_win.cpp.obj) : warning LNK4099: PDB 'WinMain.pdb'
> > was not found with 'qtmaind.lib(qtmain_win.cpp.obj)' or at
> > 'C:\Users\Sandro S.
> > Andrade\Documents\build-teste3-Desktop_Qt_6_0_0_MSVC2019_64bit-Debug\debug\WinMain.pdb';
> > linking object as if no debug info
> > qtmaind.lib(qtmain_win.cpp.obj) : error LNK2019: unresolved external
> > symbol __imp_CommandLineToArgvW referenced in function WinMain
> >
> > Does such snapshot support only Release builds or am I missing
> > something in my setup?
>
> The snapshot should have supported Debug builds as well. It's a bug that it doesn't.
> I can reproduce the issue.
>
> >
> > Also, CMake builds with many errors like:
> >
> > CMake Error at CMakeLists.txt:44 (target_link_libraries):
> >  Error evaluating generator expression:
> > $<TARGET_PROPERTY:Vulkan::Vulkan,INTERFACE_INCLUDE_DIRECTORIES>
> >  Target "Vulkan::Vulkan" not found.
>
> I can reproduce this particular issue also.
>
> >
> > Do I need to install Angle, Direct3D, or Vulkan to fix this or is
> > CMake support with Qt6 on Windows not ready yet?
>
> I'm not sure yet if installing Vulkan will help, but you can try.
>
> The snapshot is just a development snapshot, so it's expected to find issues.
>
> Many issues were already fixed since the snapshot was released, but these apparently haven't been.
>
> You can track the issues at https://bugreports.qt.io/browse/QTBUG-85240

Thanks for replying. I'll watch the bug and try to build new snapshots
from sources.

Sandro

>