If there is agreement that we should no longer do things differently for
cross-builds, I will change at least the gc7 tree correspondingly. This
was originally a compromise to try for a smaller configuration for
embedded builds. Since there wasn't a real option to control that, the
fact that you were doing a cross-build was deemed a hint that you were
targetting a small embedded environment. If we're adding explicit
options for smaller configurations, something like NO_DEBUGGING should
clearly be controlled by one of those, not by whether this is a
cross-build.