Add contributed support for building with Microsoft's compiler Thanks to Erik G <erik@6809.org> for various updates to allow building with Microsoft's compiler. These changes, in addition to some other generally good fixups from other commits, include: * move the version define to its own source file instead of as an option in Makefile. This is better anyway. * add some compatibilty stuff to lwlib This support is minimally invasive so it should continue to work. However, this is contributed code which I have no way to test.

--- a/Makefile	Tue May 26 17:51:00 2015 -0600
+++ b/Makefile	Tue May 26 17:53:51 2015 -0600
@@ -27,10 +27,10 @@
 RANLIB := $(BUILDTPREFIX)$(RANLIB)
 endif
 
-CPPFLAGS += -I lwlib -DPACKAGE_STRING='"lwtools 4.11+"'
+CPPFLAGS += -I lwlib
 LDFLAGS += -Llwlib -llw
 
-CFLAGS ?= -O3 -Wall
+CFLAGS ?= -O3 -Wall -Wno-char-subscripts
 
 MAIN_TARGETS := lwasm/lwasm$(PROGSUFFIX) \
 	lwlink/lwlink$(PROGSUFFIX) \