We'd like to use a consistent checksum scheme everywhere so that we can:
a) incorporate archive checksums into our specs and have a
consistent hashing algorithm across all specs.
b) index mirrors with a consistent type of checksum, and not one that
is dependent on how spack packages are written.
- [x] convert existing md5, sha224, sha512, sha1 checksums to sha256
- 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
This commits address build issues reported in issue #3268.
In particular, makes cleaner the dependency on parallel-netcdf
when +ncmpi variant is requested and adds CFLAGS=-D H5_USE_16_API
to handle the fact that Ior uses old 1.6 style APIs when +hdf5 is
requested.
These changes make Ior build fine and create modules for HDF5 versions
1.8.x and 1.10.0.
Even though build is successfull the modules haven't been tested in a
run.
