distcleaner is a program that implements different policies to
clean Gentoo's /usr/portage/distfiles directory, which normally
grows and grows without limit.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
The DistfilesCleanerNonInstalled strategy has been fixed. The new portage system (2.0.51-r3) provides a new way to get SRC_URI files. The old way to get that information is still there, but is broken.