We have plenty of command lines that explicitly use `-GNinja`, so let's
make Ninja a tool that is required. That's easier than changing all the
command lines to have two variants (use XX or YY if you have Ninja
installed), and we know that the dependency handling works best with
Ninja.
Fixes#2495
Co-authored-by: Olivier Goffart <olivier.goffart@slint-ui.com>
After commit 3e5aa212d5 the Slint DLLs
aren't placed in the `bin/` directory by default anymore. Since the
tutorial builds Slint as an external sub-project, it is entirely
isolated and the CMAKE_*_OUTPUT_DIRECTORY variables do not propagate. On
macOS and Linux, the program still runs due to rpath. On Windows, the
instructions said to put `bin` into `%PATH%`, but that doesn't work
anymore, the dll is now in `_deps/slint-build`.
Instead of adjusting `%PATH%`, this change adjusts the documentation to
recommend the use of a custom command on Windows using
$<TARGET_RUNTIME_DLLS:tgt> to copy the DLL across. This is guarded with
WIN32 due to https://gitlab.kitware.com/cmake/cmake/-/issues/23543 ,
where the proposed solution requires CMake 3.26 (not released yet).
We used to have SLINT_FEATURE_BACKEND_GL_ALL, but when we introduced the
renderer and event loop distinction in the features, we removed the "all" suffix from
the event loop that includes x11 and wayland support.
Split backend-gl-* into eventloop-winit-* and renderer-femtovg.
The old feature names are still available.
For consistency eventloop-qt and renderer-qt are aliases for backend-qt.
This is only required for dependencies of slint-build and xtask.
So this is not enforced yet and will still work with 1.56 with
for C++ or when not using slint-build.
