patch 7.4.1070
Problem:    The Tcl interface can't be loaded dynamically on Unix.
Solution:   Make it possible to load it dynamically. (Ken Takata)
diff --git a/src/config.h.in b/src/config.h.in
index e92cc5e..d4fd50a 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -360,6 +360,9 @@
 /* Define if you want to include the Tcl interpreter. */
 #undef FEAT_TCL
 
+/* Define for linking via dlopen() or LoadLibrary() */
+#undef DYNAMIC_TCL
+
 /* Define if you want to include the Sniff interface. */
 #undef FEAT_SNIFF