Obtained from gahr@

--- gdb/configure	2006-12-17 10:38:59.000000000 -0500
+++ gdb/configure	2013-05-13 15:40:05.000000000 -0400
@@ -22084,5 +22084,5 @@
 
 
-	     ITCLLIB="${ITCL_BUILD_LIB_SPEC}"
+	     ITCLLIB="${ITCL_LIB_SPEC}"
 	     ITCL_DEPS="${ITCL_LIB_FULL_PATH}"
            fi