Extend ghc environment file features
This is essential to make it into GHC 8.0.1 as it provides the infrastructure for cabal's new features
See D1668 for more detail
Trac metadata
| Trac field | Value |
|---|---|
| Version | |
| Type | FeatureRequest |
| TypeOfFailure | OtherFailure |
| Priority | highest |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
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| Operating system | |
| Architecture |