* Changed every 'fpic' variant to 'pic'. fixes#2463
Every variant that activates compilation of position independent code
has been changed to 'pic'. Hardcoded compiler flags in packages have
been substituted with `self.compiler.pic_flag`.
* Changed literal uses of '-fpic' to 'self.compiler.pic_flag'
- clean up fetch urls
- inherit from AutotoolsPackage instead of Package
- explicit fPIC flags look suspicious, but leave them in there.
- in scalasca, use the cube version that is implicit from
the scorep dependency instead of specifying it twice.
- This moves var/spack/packages to var/spack/repos/builtin/packages.
- Packages that did not exist in the source branch, or were changed in
develop, were moved into var/spack/repos/builtin/packages as part of
the integration.
Conflicts:
lib/spack/spack/test/unit_install.py
var/spack/repos/builtin/packages/clang/package.py
Package repositories now look like this:
top-level-dir/
repo.yaml
packages/
libelf/
package.py
mpich/
package.py
...
This leaves room at the top level for additional metadata, source,
per-repo configs, indexes, etc., and it makes it easy to see that
something is a spack repo (just look for repo.yaml and packages).
