Code fix for src/rawnet/rawnetarch_unix.c warning

[webspacecreations]

Within next-version branch (and likely main/v015), compiler generates a warning for referenced file that function close has an implicit definition. This is related to opening / closing of sockets and probably does not operate as expected.

The solution is to add the following lines of code within the #if defined(linux) block around line 68 (I added at the end after inclusion of net/if.h:

#include <unistd.h> //close
#include <arpa/inet.h> //close

rawnet now builds without issue