-frule-check flag not recognized without parameter
$ ghc Foo.hs -frule-check
ghc: on the commandline: unrecognised flag: -frule-check
Usage: For basic information, try the `--help' option.That error message is confusing. -frule-check is a valid flag, it's just being used incorrectly. It should be followed by a parameter:
$ ghc Foo.hs -frule-check ruleFooTrac metadata
| Trac field | Value |
|---|---|
| Version | 7.9 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Driver |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |