patch 7.4.1976
Problem:    Number variables are not 64 bits while they could be.
Solution:   Add the num64 feature. (Ken Takata)
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index 86bbc3e..490ae0b 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -379,7 +379,7 @@
 # Any other defines can be included here.
 DEF_GUI=-DFEAT_GUI_W32 -DFEAT_CLIPBOARD
 DEFINES=-DWIN32 -DWINVER=$(WINVER) -D_WIN32_WINNT=$(WINVER) \
-	-DHAVE_PATHDEF -DFEAT_$(FEATURES)
+	-DHAVE_PATHDEF -DFEAT_$(FEATURES) -DHAVE_STDINT_H
 ifeq ($(ARCH),x86-64)
 DEFINES+=-DMS_WIN64
 endif