CMake: fix rhash detection (#27944)
CMake: fix rhash detection (#27944)

* RHash: update version; create symlink librash.so

* Install headers

* Flake-8

* Update package.py

* Update package.py

* Update package.py (#19)

* Update package.py

* Update package.py

* Update var/spack/repos/builtin/packages/rhash/package.py

Co-authored-by: Adam J. Stewart <023e75a89b1f5ca1e59909f8756c185885836ad9@gmail.com>

* Fix installation on macOS

Co-authored-by: Adam J. Stewart <023e75a89b1f5ca1e59909f8756c185885836ad9@gmail.com>
LLNL/spack,LLNL/spack,LLNL/spack,LLNL/spack,LLNL/spack