https://issues.dlang.org/show_bug.cgi?id=13206

          Issue ID: 13206
           Summary: Generating interfaces while your path is on another
                    drive fails
           Product: D
           Version: D2
          Hardware: All
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: DMD
          Assignee: nobody@puremagic.com
          Reporter: alphaglosined@gmail.com

I use directory mounting on windows to e.g. make a complex path a drive. That path is where I keep my projects.

When trying to generate interfaces via -Hdimports and -op (using DFLAGS), dmd will output the interface files along side the sources. Completely ignoring -Hd argument.

Without -op argument, -Hd works fine.

I was using e.g. -v with dub so I know its definitely a dmd issue.

For reference sake, I use
$ subst p: E:\\programs\\cygwin\\home\\rikki\\projects
to mount the drive.

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