* mpw-make.in: Use {s} instead of {srcdir} everywhere.

	* mpw-make.in: Use {s} instead of {srcdir} everywhere.
	(bindir, libdir): Remove extra colon.
	(source.c): Compile with C instead of gC.
	(c-exp.tab.c, ch-exp.tab.c, m2-exp.tab.c): Add {o}.
	(install-only): Don't install MacGDB.
	* source.c (openp) [MPW]: Add a debugging display.
	(open_source_file) [MPW]: Use MPW basename finders.
	[MPW_C]: Briefer versions of help for line and list commands.