runghc does not infer module file extensions
In ghc-6.8 (and possibly earlier), runghc
will infer the extension of a module filename if it is not specified at the command line. This feature lets us type, for example, runghc Setup configure
without worrying whether there's a Setup.lhs
or Setup.hs
file present.
For example:
$ cat Useful.hs
main = putStrLn "Hello, world"
$ runghc Useful
Hello, world
However, this does not work for ghc-6.9.20080824:
$ ~/tmp/ghc-stage/bin/runghc Useful
<no location info>: can't find file: Useful
$ ~/tmp/ghc-stage/bin/runghc Useful.hs
Hello, world
Trac metadata
Trac field | Value |
---|---|
Version | 6.8.3 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Unknown |
Architecture | Unknown |