Cleaning up the CFLAGS/CXXFLAGS/COPTIM/CWARNINGS mess in the
configure script and Makefile.skel files; only CXXFLAGS (and CXXFLAGSBASE) are used from now on. Also removing some other unused legacy stuff from the configure script.
Authored by: debug 2008-03-28
Parent: [r40]
Child: [r42]