updated for version 7.4.393

Problem:    Text drawing on newer MS-Windows systems is suboptimal.  Some
            multi-byte characters are not displayed, even though the same font
            in Notepad can display them. (Srinath Avadhanula)
Solution:   Add the 'renderoptions' option to enable Direct-X drawing. (Taro
            Muraoka)

src/Make_mvc.mak

@@ -24,6 +24,9 @@
 #
 #	GUI interface: GUI=yes (default is no)
 #
+#	GUI with DirectWrite(DirectX): DIRECTX=yes
+#	  (default is no, requires GUI=yes)
+#
 #	OLE interface: OLE=yes (usually with GUI=yes)
 #
 #	Multibyte support: MBYTE=yes (default is no)
@@ -168,6 +171,9 @@ OBJDIR = .\ObjG
 !else
 OBJDIR = .\ObjC
 !endif
+!if "$(DIRECTX)" == "yes"
+OBJDIR = $(OBJDIR)X
+!endif
 !if "$(OLE)" == "yes"
 OBJDIR = $(OBJDIR)O
 !endif
@@ -292,6 +298,13 @@ NBDEBUG_SRC	= nbdebug.c
 NETBEANS_LIB	= WSock32.lib
 !endif
 
+# DirectWrite(DirectX)
+!if "$(DIRECTX)" == "yes"
+DIRECTX_DEFS	= -DFEAT_DIRECTX -DDYNAMIC_DIRECTX
+DIRECTX_INCL	= gui_dwrite.h
+DIRECTX_OBJ	= $(OUTDIR)\gui_dwrite.obj
+!endif
+
 !ifndef XPM
 # XPM is not set, use the included xpm files, depending on the architecture.
 !if "$(CPU)" == "AMD64"
@@ -642,6 +655,12 @@ GUI_LIB = \
 SUBSYSTEM = console
 !endif
 
+!if "$(GUI)" == "yes" && "$(DIRECTX)" == "yes"
+CFLAGS = $(CFLAGS) $(DIRECTX_DEFS)
+GUI_INCL = $(GUI_INCL) $(DIRECTX_INCL)
+GUI_OBJ = $(GUI_OBJ) $(DIRECTX_OBJ)
+!endif
+
 # iconv.dll library (dynamically loaded)
 !ifndef ICONV
 ICONV = yes
@@ -1107,6 +1126,8 @@ $(OUTDIR)/gui_beval.obj:	$(OUTDIR) gui_beval.c $(INCL) $(GUI_INCL)
 
 $(OUTDIR)/gui_w32.obj:	$(OUTDIR) gui_w32.c gui_w48.c $(INCL) $(GUI_INCL)
 
+$(OUTDIR)/gui_dwrite.obj:	$(OUTDIR) gui_dwrite.cpp $(INCL) $(GUI_INCL)
+
 $(OUTDIR)/if_cscope.obj: $(OUTDIR) if_cscope.c  $(INCL)
 
 $(OUTDIR)/if_lua.obj: $(OUTDIR) if_lua.c  $(INCL)