[barcode] Porting to windows

[Alessandro Rubini]

> To: All barcode experts <barcode@lists.linux.it>

This header makes me suspect you are not referring to GNU barcode
specifically. Also, I don't think all experts in generic barcode
issues are here (someone else exists, I suspect :)

Tukka Toivonen gives the right answer.  Moreover, the README says:

	The MS-Windows port is maintained at:
		http://gnuwin32.sourceforge.net/packages/barcode.htm

To my knowledge this is a cygwin recompilation without significant
changes.  But, again, you refer to other code, it seems.

/alessandro