New review comment by tibequadorian on void-packages repository

https://github.com/void-linux/void-packages/pull/35494#discussion_r810666531

Comment:
Now I know: Until now the `do_check` function calls `make` for testing. But because we use `ninja` instead of `make` this fails, so I changed `make` to `${make_cmd}` and `make_cmd=ninja`. This fails too, because the tests doesn't work with `ninja`, so I set `make_cmd=make` and `export CMAKE_GENERATOR="Unix Makefiles"` :)