Scratchbox is a cross-compilation toolkit. It provides an environment for doing the cross-compilations in easy, fast, safe and predictable way. Currently the focus is on ARM architecture but others can be easily added.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.