The wddx tests presume that "2040-06-12T04:32:12" cannot be parsed;
that's only true on platforms with a 32-bit time_t.

--- php-5.0.5/ext/wddx/tests/001.phpt.tests-wddx
+++ php-5.0.5/ext/wddx/tests/001.phpt
@@ -18,7 +18,7 @@
   ["aDateTime2"]=>
   int(329632332)
   ["aDateTime3"]=>
-  string(22) "2040-06-12T04:32:12+00"
+  string(12) "NotADateTime"
   ["aBoolean"]=>
   bool(true)
   ["anArray"]=>
--- php-5.0.5/ext/wddx/tests/wddx.xml.tests-wddx
+++ php-5.0.5/ext/wddx/tests/wddx.xml
@@ -20,7 +20,7 @@
                          <dateTime>1980-06-12T04:32:12+00</dateTime>
                      </var>
                      <var name='aDateTime3'>
-                         <dateTime>2040-06-12T04:32:12+00</dateTime>
+                         <dateTime>NotADateTime</dateTime>
                      </var>
                      <var name='aBoolean'>
                          <boolean value='true'/>