Add configure test for arpa/inet.h

configure.ac

@@ -125,6 +125,10 @@ AC_CHECK_HEADERS([sys/socket.h])
 dnl Check for netinet/in.h
 AC_CHECK_HEADERS([netinet/in.h])
 
+# check for arpa/inet.h
+dnl Check for arpa/inet.h
+AC_CHECK_HEADERS([arpa/inet.h])
+
 # check for SA_LEN
 dnl Check if sockaddr data structure includes a "sa_len"
 AC_CHECK_MEMBER([struct sockaddr.sa_len],

lib/socket.c

@@ -24,9 +24,11 @@
 
 #ifdef WIN32
 #include "win32_compat.h"
-#else
+#endif
+
+#ifdef HAVE_ARPA_INET_H
 #include <arpa/inet.h>
-#endif/*WIN32*/
+#endif
 
 #ifdef HAVE_POLL_H
 #include <poll.h>