fix compiler warning
diff --git a/tests/server/sws.c b/tests/server/sws.c
index dee1b9d..99f1880 100644
--- a/tests/server/sws.c
+++ b/tests/server/sws.c
@@ -183,11 +183,8 @@
     "The requested URL was not found on this server.\n"
     "<P><HR><ADDRESS>" SWSVERSION "</ADDRESS>\n" "</BODY></HTML>\n";
 
-#ifdef SIGPIPE
+#if defined(SIGPIPE) && defined(HAVE_SIGNAL)
 static volatile int sigpipe;  /* Why? It's not used */
-#endif
-
-#ifdef SIGPIPE
 static void sigpipe_handler(int sig)
 {
   (void)sig; /* prevent warning */
diff --git a/tests/server/tftpd.c b/tests/server/tftpd.c
index afd7f4f..6014842 100644
--- a/tests/server/tftpd.c
+++ b/tests/server/tftpd.c
@@ -484,7 +484,7 @@
     sock = socket(AF_INET6, SOCK_DGRAM, 0);
 #endif
 
-  if (sock < 0) {
+  if(CURL_SOCKET_BAD == sock) {
     perror("opening stream socket");
     logmsg("Error opening socket");
     return 1;
@@ -543,7 +543,7 @@
     from.sin_family = AF_INET;
 
     peer = socket(AF_INET, SOCK_DGRAM, 0);
-    if (peer < 0) {
+    if(CURL_SOCKET_BAD == peer) {
       logmsg("socket");
       result = 2;
       break;