Re: module dhelper is in file 'dhelper.d' which cannot be read

[Adam D. Ruppe]

It might help to add -Ix to dmd, which adds the x folder to your 
import search path.

I haven't actually tried it though. I compile my D programs with 
all the files listed on the command line at once, I find it is 
simpler and often a little faster too.