media-gfx/librecad
Generic 2D CAD program
USE Flags
debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
doc
Global: Adds extra documentation (API, Javadoc, etc)
tools
Global: Create separate binary for script helper tools (currently only: versionsort); useful if they are called extremely often