[M3commit] CVS Update: cm3

[Jay Krell]

CVSROOT:	/usr/cvs
Changes by:	jkrell at birch.	09/04/13 10:50:53

Modified files:
	cm3/m3-sys/cm3/src/: Makefile.m3 

Log message:
	expose the -override aka -x switch through new global M3_USE_OVERRIDES that is always defined, to be TRUE or FALSE (calling it M3_OVERRIDE or M3_OVERRIDES would also be reasonable); do this easly enough such that the central cm3.cfg can see it; a lot of processing happens after cm3.cfg (such as reading of defines from the command line, deciding if we are doing build or ship..); this will let cm3.cfg chose like runpath=$ORIGIN/../lib or INSTALL_ROOT/lib or big path to output directory