People, do you know that Lazarus is not the only IDE for FPC?
MSE IDE
Dev Pascal
FPC Shell

Also I've found that Delphi 2007 simply runs DCC32.exe for compilation (Delphi 7 has a built-in compiler). So it should be simple to make own DCC32.exe which will call "real" dcc32.exe or FPC.exe depending on desired compiler.[/url]