The PREFIX variable in the makefiles is directly used to construct the
install name on the library metadata on darwin. If not passed, the
default /usr/local is used and the resulting librhash.dylib contains
usage informaiton of /usr/local/lib/librhash.0.dylib. This adds the
PREFIX= variable directly to the make command so the resulting usage
metadata contains the correct valid library path.
- remove the old LGPL license headers from all files in Spack
- add SPDX headers to all files
- core and most packages are (Apache-2.0 OR MIT)
- a very small number of remaining packages are LGPL-2.1-only
