patch 8.1.2005: the regexp.c file is too big
Problem: The regexp.c file is too big.
Solution: Move the backtracking engine to a separate file. (Yegappan
Lakshmanan, closes #4905)
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index 0401902..ac02e80 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -1637,7 +1637,7 @@
$(OUTDIR)/quickfix.obj: $(OUTDIR) quickfix.c $(INCL)
-$(OUTDIR)/regexp.obj: $(OUTDIR) regexp.c regexp_nfa.c $(INCL)
+$(OUTDIR)/regexp.obj: $(OUTDIR) regexp.c regexp_bt.c regexp_nfa.c $(INCL)
$(OUTDIR)/scriptfile.obj: $(OUTDIR) scriptfile.c $(INCL)