--- configure.orig	2010-08-15 16:47:39.627297328 +0800
+++ configure	2010-08-15 16:50:31.353013856 +0800
@@ -5880,6 +5880,9 @@
 CC="$ac_save_cc"
 fi
 
+# XXX Explicitly disable system pthread libraries.
+ac_cv_pthread=no
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_pthread" >&5
 $as_echo "$ac_cv_pthread" >&6; }
 fi