> depends: Do not set build_subdir for qt package
>
> This change makes the next commit possible without exporting the PATH
> variable.
> depends: Use more legible qmake commands in qt package
> This change gets rid of multiple `../` that makes reasoning about the
> script and its maintaining much easier.
>
> Co-authored-by: fanquake <fanquake@gmail.com>
See D830 for the differences in the source material.
This is a backport of [[https://github.com/bitcoin/bitcoin/pull/20673 | core#20673]]