Copy whatever was made to work for generated headers:
(1) we need to consider all cmake targets not just main_lib
(2) we need to add the sysroot for macOS
This distinction is important for correct dependency management, as the
nvim binary is used to create some runtime files. The nvim binary (and
the target to build it) is thus called `nvim_bin` and the target to
build all of nvim (binary+runtime) is called `nvim`.
- Use `#pragma once` for `cmake.config/config.h.in`
- Remove unused variable `CACHED_GENERATED_DIR`
- Reorganize and sort variables
- Introduce `STYLUA_DIRS` variable to ensure the `formatlua` and
`lintlua-stylua` operates on the same files.
- Adjust variable scope to avoid using hacky directory properties.
- Add more necessary runtime files as test dependencies
- add EXTERNALPROJECT_OPTIONS variable to main build
- use `REQUIRED` keyword for IWYU.
- remove check_c_compiler_flag checks when `ENABLE_COMPILER_SUGGESTIONS`
is `ON`. If we explicitly enable it then we probably want it to give
an error if it doesn't exist, rather than silently skip it.
- Move dependency interface libraries to their find module and use them
as a pseudo-imported target.
- Remove BUSTED_OUTPUT_TYPE. It's not used and we can reintroduce it
again if something similar is needed.
- Use LINK_OPTIONS intead of LINK_FLAGS when generating the `--version`
output.
It's not needed anymore as it does the exact same thing as
functionaltest. The functionaltest target will test the lua type neovim
was built with, which can be toggled with the PREFER_LUA option.
- Remove unused code
- Use consistent casing. Variable names such as LibLuV_LIBRARIES is
needlessly jarring, even if the name might be technically correct.
- Use title casing for packages. find_package(unibilium) requires the
find_module to be named "Findunibilium.cmake", which makes it harder
to spot when scanning the files. Instead, use "Unibilium".
Eliminates lua-client and non-static libluv as test time dependencies
Note: the API for a public lua-client is not yet finished.
The interface needs to be adjusted to work in the embedded loop
of a nvim instance (to use it to talk between instances)
