Todd Gamblin d32d5e45fb Fix issues when a package provides the same vdep twice. (#2710) ...

* Fix issues when a package provides the same vdep twice.

- provides() now adds to a set of provided vdeps instead of a single one.

* flake8

2017-01-02 18:40:57 -08:00

..

spack

Fix issues when a package provides the same vdep twice. (#2710)

2017-01-02 18:40:57 -08:00