Index: serf-1.2.1/test/test_util.c
===================================================================
--- serf-1.2.1.orig/test/test_util.c	2013-07-12 11:37:18.791411161 +0200
+++ serf-1.2.1/test/test_util.c	2013-07-12 11:37:18.783411161 +0200
@@ -27,14 +27,14 @@
 /* Server setup function(s)
  */
 
-#define HTTP_SERV_URL  "http://localhost:" SERV_PORT_STR
-#define HTTPS_SERV_URL "https://localhost:" SERV_PORT_STR
+#define HTTP_SERV_URL  "http://127.0.0.1:" SERV_PORT_STR
+#define HTTPS_SERV_URL "https://127.0.0.1:" SERV_PORT_STR
 
 static apr_status_t default_server_address(apr_sockaddr_t **address,
                                            apr_pool_t *pool)
 {
     return apr_sockaddr_info_get(address,
-                                 "localhost", APR_UNSPEC, SERV_PORT, 0,
+                                 "127.0.0.1", APR_INET, SERV_PORT, 0,
                                  pool);
 }
 
@@ -42,7 +42,7 @@
                                           apr_pool_t *pool)
 {
     return apr_sockaddr_info_get(address,
-                                 "localhost", APR_UNSPEC, PROXY_PORT, 0,
+                                 "127.0.0.1", APR_INET, PROXY_PORT, 0,
                                  pool);
 }
 
Index: serf-1.2.1/test/serf_request.c
===================================================================
--- serf-1.2.1.orig/test/serf_request.c	2013-07-12 11:42:17.615396050 +0200
+++ serf-1.2.1/test/serf_request.c	2013-07-12 11:42:29.779395435 +0200
@@ -65,7 +65,7 @@
     hdrs_bkt = serf_bucket_request_get_headers(req_bkt);
 
     /* FIXME: Shouldn't we be able to figure out the host ourselves? */
-    serf_bucket_headers_setn(hdrs_bkt, "Host", "localhost");
+    serf_bucket_headers_setn(hdrs_bkt, "Host", "127.0.0.1");
     serf_bucket_headers_setn(hdrs_bkt, "User-Agent",
                              "Serf/" SERF_VERSION_STRING);
 
Index: serf-1.2.1/test/test_context.c
===================================================================
--- serf-1.2.1.orig/test/test_context.c	2013-07-12 11:42:12.711396298 +0200
+++ serf-1.2.1/test/test_context.c	2013-07-12 11:42:33.803395231 +0200
@@ -459,8 +459,8 @@
     apr_status_t status;
 
     test_server_message_t message_list[] = {
-        {"GET http://localhost:" SERV_PORT_STR " HTTP/1.1" CRLF\
-         "Host: localhost:" SERV_PORT_STR CRLF\
+        {"GET http://127.0.0.1:" SERV_PORT_STR " HTTP/1.1" CRLF\
+         "Host: 127.0.0.1:" SERV_PORT_STR CRLF\
          "Transfer-Encoding: chunked" CRLF\
          CRLF\
          "1" CRLF\
Index: serf-1.2.1/test/test_serf.h
===================================================================
--- serf-1.2.1.orig/test/test_serf.h	2013-07-12 11:42:06.907396591 +0200
+++ serf-1.2.1/test/test_serf.h	2013-07-12 11:42:39.031394967 +0200
@@ -52,7 +52,7 @@
 
 #define CHUNKED_REQUEST(len, body)\
         "GET / HTTP/1.1" CRLF\
-        "Host: localhost:12345" CRLF\
+        "Host: 127.0.0.1:12345" CRLF\
         "Transfer-Encoding: chunked" CRLF\
         CRLF\
         #len CRLF\