[Haskell-cafe] ghc does not link after compiling

hi I wanted to compile my little test programm so it can take advantage of a multicore system. But when i call the compiler with ghc -O2 --make Benchmark.hs -threaded it just produces a acouple of .hi and .o files but no executable. But in the documantation was written that i just need to call ghc like that and it will produce my desired executable. My version of ghc is 6.10.3 regards