continuation of #109595
pkgconfig was aliased in 2018, however, it remained in
all-packages.nix due to its wide usage. This cleans
up the remaining references to pkgs.pkgsconfig and
moves the entry to aliases.nix.
python3Packages.pkgconfig remained unchanged because
it's the canonical name of the upstream package
on pypi.
This makes packages use lapack and blas, which can wrap different
BLAS/LAPACK implementations.
treewide: cleanup from blas/lapack changes
A few issues in the original treewide:
- can’t assume blas64 is a bool
- unused commented code
- Depend on `clfft`, `clblas`, and `opencl-clhpp` from nixpkgs (do not
fetch their sources)
- Add `buildDocs` flag. When set to true, arrayfire's docs will be
built using `doxygen`.
- Ensure that `cudatoolkit` is not evaluated on darwin.
- Move `python` from `buildInputs` to `nativeBuildInputs`.
- Meta: Shrink `description` and add `longDescription`.
- Meta: `homepage` formatting now adheres to nixpkgs manual.
- Meta: remove version
- A few minour syntactic-only changes.
