Greg Becker cfb6f21236 externals: allow package prefs to configure default not buildable (#16735) ...

Allows `all` to be configured non-buildable in packages.yaml.

The following config would only allow zlib to be built by Spack, all other packages would have to be found as externals.

```
packages:
  all:
    buildable: False
  zlib:
    buildable: True
```

2020-05-20 17:09:07 -07:00

..

docs

modules: use projections format for naming schemes (#16629)

2020-05-15 11:12:52 -07:00

env

compiler wrappers: don't override -isystem with -I (#16077)

2020-04-21 13:56:50 -07:00

external

Vendoring: remove dependency on Setuptools from vendored pytest (#15612)

2020-03-23 16:55:07 -07:00

llnl

bugfix: don't use sys.stdout as a default arg value (#16541)

2020-05-09 00:56:18 -07:00

spack

externals: allow package prefs to configure default not buildable (#16735)

2020-05-20 17:09:07 -07:00