include: Add commctrl.rh.
diff --git a/include/Makefile.in b/include/Makefile.in
index 453d528..d7e85f4 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -100,6 +100,7 @@
 	cierror.h \
 	clusapi.h \
 	commctrl.h \
+	commctrl.rh \
 	commdlg.h \
 	compobj.h \
 	cor.h \