[Development] gnuwin32 in qt5.git

[Kai Koehne]

> -----Original Message-----
> From: Development <development-bounces at qt-project.org> On Behalf Of
> [...]
> Would it make sense to use a package manager like Conan to provide third
> party dependencies as well as Qt modules in source and prebuilt binary form?
> That could solve the availability issue and would probably simplify the build
> flow as well.

Conan.io and Vcpkg are hot candidates, indeed. IMO we need something that
- Works natively on all development platforms
- Has a strong ecosystem which we can benefit from
- Supports both building locally, as well as providing pre-build binaries

Regards

Kai