Kyle Knoepfel

Structured bindings for vectors

1

### Explain what you would like to see improved For vector-like constructs (`TVector2`, `TVector3`, `TLorentzVector`, `ROOT::Math::DisplacementVector3D`, etc.), it would be very helpful to support structured bindings to the Cartesian coordinates...

Use Prefix class for build_directory for CMake and a few other builders.

10

The `spack.util.prefix.Prefix` class enables simple joining of path names. Users are accustomed to using this facility for the `self.prefix` attribute in a recipe's (e.g.) `setup_run_environment(self, env)` method. Something similar should...

Honor `cmake_prefix_paths` (try 2)

3

This PR is a continuation of: - https://github.com/spack/spack/pull/42569, which was then reverted by... - https://github.com/spack/spack/pull/49237 The goals for this PR: - [x] Use "prepending" instead of "appending" of environment variables...

Automatic referencing of Sphinx sections that use the `:need:` role

2

We are creating a Sphinx-based design document for a computing framework based on various requirements (WIP webpage: https://framework-r-d.github.io/phlex-design/requirements.html). For each need, we'd like to cross-reference sections within the design document...