14525ed0c6
* Replace variadic debugpline() with fixed argument debugpline0(str), debugpline1(fmt,arg), and so on so that C99 support isn't required; * showdebug() becomes a function rather than a macro and handles a bit more; * two debugpline() calls in light.c have been changed to impossible(); * DEBUGFILES macro (in sys.c) can substitute for SYSCF's DEBUGFILES setting in !SYSCF configuration (I hope that's temporary).