During install, network's Typeable.h clobbers base's copy
There are two copies of Typeable.h in a fully populated GHC tree. The copy in libraries/network/include is a cut-down version of the copy from libraries/base/include.
Unfortunately, the network copy overwrites the base copy when GHC is installed. Since the network version defines INSTANCE_TYPEABLE0 but not [123], anything that rquires one of the other definitions is going to break.
This affects hs-plugins, for example; I can't build it, because on my Fedora box, it's getting network's copy of Typeable.h.
It seems that a correct approach would be to drop the less-capable duplicate from the network tree.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.6 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | Unknown |
| Architecture | Unknown |
Edited by bos