Use dmd instead of g++ on Posix to link.
Use dmd instead of g++ on Posix to link.

nazriel/dub,Flamaros/dub,gedaiu/dub,D-Programming-Language/dub,Abscissa/dub-data-mod,y12uc231/dub,dreamsxin/dub,grogancolin/dub,jeanbaptistelab/dub,jelmansouri/dub,alexeibs/dub,xentec/dub,rjframe/dub,Geod24/dub,schuetzm/dub,MartinNowak/dub,p0nce/dub,Abscissa/dub