Hi, We would like our build system (either a dedicated server or development machines) to be able to build our system for multiple targets, specifically 32-bit and 64-bit variants. Our system has several dependancies on third party open source packages. >From experiments conducted, I know it's possible to build stand-alone applications (.exe) for both 32-bit and 64-bit provided the dependencies are there. Our preference is to not have both packages for both 32-bit and 64-bit installed on all development machines. Is there a way to build the packages without the library dependencies they need? That is, is there a way to specify to gcc/g++ or ld, the name of the library and symbols it would need without the actual library? Regards, Colin