diff -up nmap-6.01/ncat/ncat_main.c.noepoll nmap-6.01/ncat/ncat_main.c

--- nmap-6.01/ncat/ncat_main.c.noepoll	2013-01-04 12:50:18.670295473 +0100

+++ nmap-6.01/ncat/ncat_main.c	2013-01-04 12:50:18.692295660 +0100

@@ -280,6 +280,8 @@ int main(int argc, char *argv[])

 #ifdef WIN32

     windows_init();

 #endif

+    

+    nsock_set_default_engine("select");

     while (1) {

         /* handle command line arguments */