require 'sys/syscall.ph';      # this is built with h2ph
print "SYS_sendmsg: ", SYS_sendmsg(), "\n";
print "SYS_recvmsg: ", SYS_recvmsg(), "\n";


##</code><code>##

( cd /usr/include; h2ph * sys/* )    or
( cd /usr/include; h2ph -r -l . )