Index: library/xml/TclExpat-1.1/configure.in
===================================================================
diff -u -rfb1c70479008e8b50c8b1ac0885af959fc316775 -r315917fa0a616efb7f16b55bc0eed64e90b1bb96
--- library/xml/TclExpat-1.1/configure.in	(.../configure.in)	(revision fb1c70479008e8b50c8b1ac0885af959fc316775)
+++ library/xml/TclExpat-1.1/configure.in	(.../configure.in)	(revision 315917fa0a616efb7f16b55bc0eed64e90b1bb96)
@@ -128,6 +128,13 @@
     filemap="unixfilemap.c"
 fi
 
+#
+# general fallback to the bundled expat
+#
+if test "${expat_dir}" = ""; then
+    with_expat="bundle"
+fi
+
 if test "${with_expat}" = bundle ; then
     # 1) the bundled case
     AC_MSG_RESULT([using bundled expat distribution])