[M3commit] CVS Update: cm3

[Rodney M. Bates]

CVSROOT:	/usr/cvs
Changes by:	rodney at birch.	13/10/22 17:26:14

Modified files:
	cm3/m3-sys/m3linker/src/: Mx.i3 MxIn.m3 MxOut.m3 

Log message:
	Compatability with Unicode branch.
	
	Recognize the magic string in m3linker files (*.mx, *.m3x) for Unicode-sized
	WIDECHAR.  Without this change, the head compiler would already detect an
	attempt to link in code compiled with Unicode-sized WIDECHAR, but with a highly
	uninformative message, similar to:
	
	Fatal Error: bad link info file: /usr/local/cm3/pkg/web/AMD64_LINUX/libweb.m3x
	
	Similarly, when recompiling a package that was previously compiled with
	Unicode-sized WIDECHAR, the head compiler would recompile the entire package,
	but with no meaningful explanation.
	
	With these changes, the head compiler gives comprehensible messages in these
	situations.
	
	Note: This mechanism only detects what compiler version (16-bit WIDECHAR or
	Unicode-WIDECHAR) was used, without regard to whether there are actually
	any WIDECHAR variables in the package(s) being linked/recompiled or whether
	such values cross package boundaries.
	
	The release compiler, with no modifications, should handle these cases too,
	but without helpful messages.
	
	This code is almost identical in the head and Unicode branches, except for
	the value of CONST Mx.UnicodeWideChar, which needs to agree with settings
	in m3front and m3cc.