diff --git a/configure.in b/configure.in
index a253a57c7..a82e6bbda 100644
--- a/configure.in
+++ b/configure.in
@@ -43,6 +43,8 @@ CC=$PTHREAD_CC
 CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS"
 LIBS="$LIBS $PTHREAD_LIBS"
 
+AM_CONDITIONAL([ENABLE_SHIPPED_ASIO], false)
+
 dnl Check for boost libraries.
 AX_BOOST_BASE([1.35],[
    AX_BOOST_SYSTEM