updated for version 7.3.304
Problem:    Strawberry Perl doesn't work on MS-Windows.
Solution:   Use xsubpp if needed. (Yasuhiro Matsumoto)
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index 88f092b..e3aba82 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -785,6 +785,11 @@
 PERL_INC = /I $(PERL_INCDIR)
 PERL_OBJ = $(OUTDIR)\if_perl.obj $(OUTDIR)\if_perlsfio.obj
 XSUBPP = $(PERL)\lib\ExtUtils\xsubpp
+!if exist($(XSUBPP)
+XSUBPP = $(PERL_EXE) $(XSUBPP)
+!else
+XSUBPP = xsubpp
+!endif
 XSUBPP_TYPEMAP = $(PERL)\lib\ExtUtils\typemap
 
 !endif
@@ -1041,7 +1046,7 @@
 	$(CC) $(CFLAGS) $(LUA_INC) if_lua.c
 
 if_perl.c : if_perl.xs typemap
-	$(PERL_EXE) $(XSUBPP) -prototypes -typemap $(XSUBPP_TYPEMAP) \
+	$(XSUBPP) -prototypes -typemap $(XSUBPP_TYPEMAP) \
 		-typemap typemap if_perl.xs > if_perl.c
 
 $(OUTDIR)/if_perl.obj: $(OUTDIR) if_perl.c  $(INCL)