Index: configure
===================================================================
--- configure	(revision 1995)
+++ configure	(working copy)
@@ -3579,7 +3579,7 @@
 
 case "$target" in
   *mingw*|*cygwin*)
-    WINSOCK_LIBS="-lws2_32 -lpthread"
+    WINSOCK_LIBS="-lws2_32"
 
     ;;
 esac
Index: src/OptionHandlerFactory.cc
===================================================================
--- src/OptionHandlerFactory.cc	(revision 1995)
+++ src/OptionHandlerFactory.cc	(working copy)
@@ -157,7 +157,7 @@
     SharedHandle<OptionHandler> op(new BooleanOptionHandler
                                    (PREF_DISABLE_IPV6,
                                     TEXT_DISABLE_IPV6,
-                                    V_FALSE,
+                                    V_TRUE,
                                     OptionHandler::OPT_ARG));
     op->addTag(TAG_ADVANCED);
     handlers.push_back(op);
Index: configure.ac
===================================================================
--- configure.ac	(revision 1995)
+++ configure.ac	(working copy)
@@ -12,7 +12,7 @@
 
 case "$target" in
   *mingw*|*cygwin*)
-    WINSOCK_LIBS="-lws2_32 -lpthread"
+    WINSOCK_LIBS="-lws2_32"
     AC_SUBST(WINSOCK_LIBS)
     ;;
 esac