patch 9.1.1391: Vim does not have a vertical tabpanel

Problem:  Vim does not have a tabpanel
Solution: include the tabpanel feature
          (Naruhiko Nishino, thinca)

closes: #17263

Co-authored-by: thinca <thinca@gmail.com>
Signed-off-by: Naruhiko Nishino <naru123456789@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index ab9c3b1..37f9f6c 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -875,6 +875,7 @@
 	$(OUTDIR)/spellsuggest.o \
 	$(OUTDIR)/strings.o \
 	$(OUTDIR)/syntax.o \
+	$(OUTDIR)/tabpanel.o \
 	$(OUTDIR)/tag.o \
 	$(OUTDIR)/term.o \
 	$(OUTDIR)/testing.o \