SIGPIPE ignore if no SO_NOSIGPIPE

cyassl/test.h

@@ -37,6 +37,9 @@
         #include <netdb.h>
     #endif
     #define SOCKET_T int
+    #ifndef SO_NOSIGPIPE
+        #include <signal.h>  /* ignore SIGPIPE */
+    #endif
 #endif /* USE_WINDOWS_API */
 
 #ifdef _MSC_VER
@@ -354,7 +357,9 @@ static INLINE void tcp_socket(SOCKET_T* sockfd, SOCKADDR_IN_T* addr,
         if (res < 0)
             err_sys("setsockopt SO_NOSIGPIPE failed\n");
     }
-#endif
+#else  /* no S_NOSIGPIPE */
+    signal(SIGPIPE, SIG_IGN);
+#endif /* S_NOSIGPIPE */
 
 #if defined(TCP_NODELAY)
     if (!udp)