sqlite: disable tcl interface if there is no tcl available in the target (see note)

Note:

The sqlite-amalgamation tarball we use seem to not include the TCL extension
anymore, so this fix is a kind of hotfix!
We should check http://sqlite.org/amalgamation.html later for deciding how we
are going to integrate sqlite into OpenSDE.

database/sqlite/sqlite.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../sqlite/sqlite.conf
-# Copyright (C) 2009 The OpenSDE Project
+# Copyright (C) 2009 - 2010 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -12,7 +12,6 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
-if pkginstalled tcl; then
+if ! pkginstalled tcl; then
-	# postpone tcl_install after we installed the library
+	var_append extraconfopt ' ' '--disable-tcl'
-	hook_add postmake 5 'eval $MAKE $makeopt tcl_install'
 fi