sci-physics/hepmc
Event Record for Monte Carlo Generators
USE Flags
cm
Global: Build with cm instead of default mm for length units
Local: Build with cm instead of default mm for length units
doc
Global: Adds extra documentation (API, Javadoc, etc)
examples
Global: Install examples, usually source code
gev
Global: Build with GeV instead of default MeV for momentum units
Local: Build with GeV instead of default MeV for momentum units
test
Global: Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore