--- configure.orig	2009-03-12 14:16:24.000000000 +0000
+++ configure	2009-03-12 14:17:16.000000000 +0000
@@ -5230,6 +5230,9 @@
 CC="$ac_save_cc"
 fi
 
+# XXX Explicitly disable system pthread libraries.
+ac_cv_pthread=no
+
 { echo "$as_me:$LINENO: result: $ac_cv_pthread" >&5
 echo "${ECHO_T}$ac_cv_pthread" >&6; }
 fi