patch 7.4.1063
Problem:    TCL_VER_LONG and DYNAMIC_TCL_VER are not set when building with
            Cygwin and MingW.
Solution:   Add TCL_VER_LONG and DYNAMIC_TCL_VER to the makefile.
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index 350074f..ca6f844 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -263,6 +263,8 @@
 #	  TCL=[Path to TCL directory] (Set inside Make_cyg.mak or Make_ming.mak)
 #	  DYNAMIC_TCL=yes (to load the TCL DLL dynamically)
 #	  TCL_VER=[TCL version, eg 83, 84] (default is 83)
+#	  TCL_VER_LONG=[Tcl version, eg 8.3] (default is 8.3)
+#	    You must set TCL_VER_LONG when you set TCL_VER.
 ifdef TCL
 ifndef DYNAMIC_TCL
 DYNAMIC_TCL=yes
@@ -270,6 +272,9 @@
 ifndef TCL_VER
 TCL_VER = 83
 endif
+ifndef TCL_VER_LONG
+TCL_VER_LONG = 8.3
+endif
 TCLINC += -I$(TCL)/include
 endif
 
@@ -462,7 +467,7 @@
 ifdef TCL
 CFLAGS += -DFEAT_TCL $(TCLINC)
 ifeq (yes, $(DYNAMIC_TCL))
-CFLAGS += -DDYNAMIC_TCL -DDYNAMIC_TCL_DLL=\"tcl$(TCL_VER).dll\"
+CFLAGS += -DDYNAMIC_TCL -DDYNAMIC_TCL_DLL=\"tcl$(TCL_VER).dll\" -DDYNAMIC_TCL_VER=\"$(TCL_VER_LONG)\"
 endif
 endif