Fix suitesparse checksum refresh naming mismatch

[staticfloat]

Without this change, suitesparse checksum files don't get packed
properly

[vtjnash]

This needs a comment on why you are re-invoking make, which is non-typical

[DilumAluthge]

Should we just rename the checksums file from suitesparse to libsuitesparse? Would that avoid the need for re-invoking make?

[staticfloat]

which is non-typical

Yeah, I'm not totally happy with it either. I want to cause invocations of pack-checksum-libsuitesparse to actually invoke pack-checksum-suitesparse, since we implicitly assume that the name of the target (-suitesparse) has something to do with the name of the files on disk (SuiteSparse*.tar.gz). I don't know how to enforce that without shelling out to make again.

[vtjnash]

Why not a dependency then?

[staticfloat]

If I just put

pack-checksum-libsuitesparse: pack-checksum-suitesparse

Then we still generate an empty libsuitesparse file, because we still run the pattern rule below. What I really want is an "alias rule", if such a thing exists, and the $(MAKE) invocation seemed the simplest way to do it.

[staticfloat]

Okay with the latest push, the only downside now is that we clear out the SuiteSparse-${gitsha}.tar.gz checksum file that the stdlib saves.

[ViralBShah]

I'm not sure I follow this fully, but will we now have deps/checksums/libsuitesparse for all the checksums to be consistent with all the changes? I guess deleting the tarball is ok - it will just trigger an extra download, right?

[ViralBShah]

I ran into this while updating suitesparse 5.10.1 checksums. This is likely going to lead to accidental deletion - but presumably only folks dealing with suitesparse will be updating this and can watch out for it.