--- Curl_multi.xsh_orig 2019-11-20 11:54:58 +1100
+++ Curl_multi.xsh      2019-11-20 11:55:35 +1100
@@ -564,8 +564,8 @@
 int
 socket_action( multi, sockfd=CURL_SOCKET_BAD, ev_bitmask=0 )
        Net::Curl::Multi multi
-       int sockfd
-       int ev_bitmask
+       IV sockfd
+       IV ev_bitmask
        PREINIT:
                int remaining;
                CURLMcode ret;