Sometimes it is helpful to remove everything from your MPD projects
build and installation directories. This is achieved by using the
spack mpd zap command on a selected MPD project:
$ spack mpd zap -h
usage: spack mpd zap [-h] [--all | --build | --install]
delete everything in your build and/or install areas.
If no optional argument is provided, the '--build' option is assumed.
optional arguments:
--all delete everything in your build and install directories
--build delete everything in your build directory
--install delete everything in your install directory
-h, --help show this help message and exit