template-haskell 2.4 fails to compile with base 4.1
The problem is !CharConstr, which doesn't exist in Data.Data prior to base 4.2. I suppose the easiest fix is to update the build-depends in the cabal file.
But for what it's worth I had a look and the mention of !CharConstr is so brief that I wonder if it's not worth factoring it out somehow in a way that maintains compatibility – commenting out that single two-line case branch allows the build to complete fine.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.10.4 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | libraries (other) |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |