--- configure.orig	2014-09-18 04:08:33 UTC
+++ configure
@@ -44,10 +44,6 @@ exec 3>&1
 
 # Parse command-line arguments
 
-if echo "$configure_options" | grep -q -e '--\?[a-zA-Z0-9-]\+='; then
-  err "Arguments to this script look like '-libdir /foo/bar', not '-libdir=/foo/bar' (note the '=')."
-fi
-
 while : ; do
   case "$1" in
     "") break;;
@@ -222,6 +218,8 @@ if test $has_tk = true && test -z "$tk_l
   esac
   if test -n "$tklibdir"; then
     case "$system" in
+    freebsd) tk_libs="-L$tklibdir" ;;
+    bsd_elf) tk_libs="-L$tklibdir" ;;
     *bsd*) tk_libs="-R$tklibdir -L$tklibdir" ;;
     *) tk_libs="-L$tklibdir" ;;
     esac