dmd should have a verbose mode where it outputs what it's trying to do and with which settings, so I could have a chance at seeing what I have messed up, and what linker command it is invoking, ... as it is, I felt totally in the dark, and that just adds to the frustration.
The "-v" (verbose) option does this.
You can find a list of DMD options and such here: http://dlang.org/dmd-linux.html
