1. Fixed bento error (was not buildable on alpha)
2. Updating 1.4.2 -> 1.4.3
3. Removed RM_INSTALL=${X11BASE} from port makefile,
because it was forcing OpenRM makefiles to install things
even during port build phase.
4. Fixed calls to pthread_setconcurrency in demo programs.
Now they all are buildable.
PR: ports/51267
Submitted by: Igor Pokrovsky <igor.pokrovsky@cnrm.meteo.fr>