add back a check for sa_len in sockaddr structure.

configure.ac

@@ -51,6 +51,16 @@ esac
 
 AC_SUBST(RPCGENFLAGS)
 
+# check for SA_LEN
+dnl Check if sockaddr data structure includes a "sa_len"
+AC_CHECK_MEMBER([struct sockaddr.sa_len],
+                [ AC_DEFINE(HAVE_SOCKADDR_LEN,1,[Whether sockaddr struct has sa_len]) ],
+                [],
+                [
+#include <sys/types.h>
+#include <sys/socket.h>
+])
+
 #output
 AC_CONFIG_FILES([Makefile]
                 [include/Makefile]

lib/socket.c

@@ -311,7 +311,7 @@ int rpc_connect_async(struct rpc_context *rpc, const char *server, int port, rpc
 	switch (s.ss_family) {
 	case AF_INET:
 		socksize = sizeof(struct sockaddr_in);
-#ifdef HAVE_SOCK_SIN_LEN
+#ifdef HAVE_SOCKADDR_LEN
 		sin->sin_len = socksize;
 #endif
 		rpc->fd = socket(AF_INET, SOCK_STREAM, 0);