[fpc-devel] RTL defines for unicode

[Marco van de Voort]

As people following recent commits might have already seen, work is being
done to switch the Windows header units to unicode (-W), and switch base
file operations to use it.

That is not (yet) committed, but some minor other work has been committed.
The following IFDEF defines are used for that:

FPC_HAS_SYSTEMFILEREC -> textrec/filerec use unicode (compiler must match)
FPC_UNICODE_RTL -> core system routines support unicode
FPC_OS_UNICODE  -> (windows)  OS headers are unicode 

UNICODE		-> {$mode delphunicode} string=unicodestring
	       but also locally defined in the various windows api units
		({$ifdef FPC_OS_UNICODE} {$DEFINE UNICODE}{$ENDIF}
			in the headers.
		
There is nothing that can be built from SVN yet, so please be patient.