Index: src/OFDate.m
==================================================================
--- src/OFDate.m
+++ src/OFDate.m
@@ -12,11 +12,11 @@
  * Public License, either version 2 or 3, which can be found in the file
  * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
  * file.
  */
 
-#define _POSIX_SOURCE
+#define _POSIX_C_SOURCE 199309L
 #define _XOPEN_SOURCE 500
 
 #include "config.h"
 
 #include <stdint.h>

Index: src/OFThread.m
==================================================================
--- src/OFThread.m
+++ src/OFThread.m
@@ -13,12 +13,11 @@
  * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
  * file.
  */
 
 #define OF_THREAD_M
-#define _POSIX_C_SOURCE 199309
-#define _POSIX_TIMERS
+#define _POSIX_C_SOURCE 199309L
 #define __NO_EXT_QNX
 
 #include "config.h"
 
 #include <stdlib.h>

Index: tests/OFHTTPClientTests.m
==================================================================
--- tests/OFHTTPClientTests.m
+++ tests/OFHTTPClientTests.m
@@ -14,13 +14,11 @@
  * file.
  */
 
 #include "config.h"
 
-#include <stdlib.h>
 #include <string.h>
-#include <time.h>
 
 #import "OFHTTPClient.h"
 #import "OFHTTPRequest.h"
 #import "OFHTTPResponse.h"
 #import "OFString.h"
@@ -38,11 +36,11 @@
 static OFCondition *cond;
 
 @interface OFHTTPClientTestsServer: OFThread
 {
 @public
-	uint16_t port;
+	uint16_t _port;
 }
 @end
 
 @implementation OFHTTPClientTestsServer
 - main
@@ -50,12 +48,12 @@
 	OFTCPSocket *listener, *client;
 
 	[cond lock];
 
 	listener = [OFTCPSocket socket];
-	port = [listener bindToHost: @"127.0.0.1"
-			       port: 0];
+	_port = [listener bindToHost: @"127.0.0.1"
+				port: 0];
 	[listener listen];
 
 	[cond signal];
 	[cond unlock];
 
@@ -63,11 +61,11 @@
 
 	if (![[client readLine] isEqual: @"GET /foo HTTP/1.1"])
 		OF_ENSURE(0);
 
 	if (![[client readLine] isEqual:
-	    [OFString stringWithFormat: @"Host: 127.0.0.1:%" @PRIu16, port]])
+	    [OFString stringWithFormat: @"Host: 127.0.0.1:%" @PRIu16, _port]])
 		OF_ENSURE(0);
 
 	if (![[client readLine] hasPrefix: @"User-Agent:"])
 		OF_ENSURE(0);
 
@@ -105,11 +103,11 @@
 	[cond wait];
 	[cond unlock];
 
 	url = [OFURL URLWithString:
 	    [OFString stringWithFormat: @"http://127.0.0.1:%" @PRIu16 "/foo",
-					server->port]];
+					server->_port]];
 
 	TEST(@"-[performRequest:]",
 	    (client = [OFHTTPClient client]) &&
 	    R(request = [OFHTTPRequest requestWithURL: url]) &&
 	    R(response = [client performRequest: request]))