modular xorg.
- supply corresponding USE_XORG for all imake-using ports that need it
- USE_IMAKE no longer implies USE_XLIB in absence of USE_XORG
- retire USE_X_PREFIX which is not really used anywhere after the
above change
- a few minor nits like whitespace and SF macro
Tested by: 2 tinderbox runs by pav
Approved by: portmgr (pav)
2d-rewriter is fractals generator based on pattern matching
and rewriting. The program takes input containing initial
object placement and rewriting rules and keeps applying
rules to the data field until it reaches an arrangement
where no rules can be applied.
PR: ports/118906
Submitted by: Igor Serikov <bt@turtle.freedns.us>
