mxcl/homebrew — pull request #16058 by avsm (2012-11-14 14:56:32+00:00)
Title: update to opam-0.8.1

Changelog:

```
0.8.1 [Nov 2012]
* Simplify string substitution in OPAM files
* Recompile the installed packages when the system compiler is upgraded
* Fix various regressions in pinned and dev packages introduced in 0.8.0

0.8.0 [Nov 2012]
* Improvements in the solver interface and API
* The solver now use an external SAT-solver (aspcud) if found in the path
* More expressive constraints in optional dependencies
* Clean-up the build directory when build succeeds
```