Command line flag "exclude-module" not recognized

[heatsink]

The exclude-module flag used with ghc -M does not work as advertised. The deprecated syntax works correctly, but the new syntax is parsed incorrectly.

module Foo where
import Bar -- Bar.hs does not exist

-- On the command line:
$ ghc -M Foo.hs
Foo.hs:4:7:
    Could not find module `Bar':
      Use -v to see a list of the files searched for.

$ ghc -M Foo.hs -optdep --exclude-module=Bar
on the commandline:
    Warning: -optdep--exclude-module=Bar is deprecated: Use -exclude-module instead

$ ghc -M Foo.hs -exclude-module=Bar
ghc: cannot use `-M' with `-e'

The command line parsing was apparently changed to resolve #1248.

[igloo]

Thanks for the report. I'll take a look.

[igloo]

Fixed in HEAD and 6.12.