configure.in: Fix (de)activation of the Swap plugin for OpenBSD.

diff --git a/configure.in b/configure.in
index 8be7965..70e3edd 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -4567,7 +4567,7 @@ then
        plugin_swap="yes"
 fi
 
-if test "x$have_swapctl" = "xyes"
+if test "x$have_swapctl" = "xyes" && test "x$c_cv_have_swapctl_two_args" = "xyes"
 then
        plugin_swap="yes"
 fi