- some lint clean up
- set up wget dependency (towards enabling "make test")
- OMP_NUM_THREADS=1 during check (towards enabling "make test")
- enable all arithmetics
- correctly builds the master branch:
guix environment --pure --ad-hoc qr_mumps --with-git-url=qr_mumps=/my/path/to/git/clone/of/qr_mumps/ --with-branch=qr_mumps=master