D-Programming-Language/tools — pull request #70 by AndrejMitrovic (2013-06-21 17:18:25+00:00)
Title: Issue 10435 - RDMD should allow pass-through of -op flag to DMD.

http://d.puremagic.com/issues/show_bug.cgi?id=10435

I'm not sure whether there's any feature requested here, but AFAIK simply eating the `-op` flag won't do damage and will allow compilation to proceed. Will close if I misunderstood the bug.