run-time dependency (DEPENDS) on a tool is to append a ":run" modifier
to the tool name, e.g.,
USE_TOOLS+= perl:run
Tools without modifiers or with an explicit ":build" modifier will
cause build dependencies (BUILD_DEPENDS) on those tools to be added.
This makes the notation a bit more compact.
distmp3 is a client and a daemon (both written in perl) for distributed
mp3-encoding across multiple hosts on a network.
distmp3 can be used standalone or by a front-end CD ripper such as
audio/abcde.
