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
Libunwind releases are few and far between, so we need access to
recent snapshots from the git repository.
Pass cflags to configure so that make will respect the value from the
spack install line.
- 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
* libunwind: add version 1.3-rc1 and variant xz
Version 1.3-rc1 is the latest published snapshot from libunwind.
Variant xz adds spack-built support for reading compressed symbol
tables, or else disables this feature. Without the variant, libunwind
will look for liblzma in /usr/lib.
* Add preferred=True to version 1.2.1 as the last official stable
release.
This commit begins addressing the ideas discussed in #8823. The
libunwind library now provides the "unwind" virtual package, which
represents the "libunwind base API" common to LLVM libunwind, Apple's
LLVM libunwind, and non-GNU libunwind.
Package repositories now look like this:
top-level-dir/
repo.yaml
packages/
libelf/
package.py
mpich/
package.py
...
This leaves room at the top level for additional metadata, source,
per-repo configs, indexes, etc., and it makes it easy to see that
something is a spack repo (just look for repo.yaml and packages).
