diff --git a/headers/posix/pthread.h b/headers/posix/pthread.h
index d57165926d..bf8edd1fc5 100644
--- a/headers/posix/pthread.h
+++ b/headers/posix/pthread.h
@@ -127,6 +127,12 @@ extern pthread_t pthread_self(void);
 
 extern int pthread_kill(pthread_t thread, int sig);
 
+/* thread specific data functions */
+extern int pthread_key_create(pthread_key_t *key, void (*destructor)(void*));
+extern int pthread_key_delete(pthread_key_t key);
+extern void *pthread_getspecific(pthread_key_t key);
+extern int pthread_setspecific(pthread_key_t key, const void *value);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/system/libroot/posix/pthread/Jamfile b/src/system/libroot/posix/pthread/Jamfile
index ab4ef86f91..964b3cdf2e 100644
--- a/src/system/libroot/posix/pthread/Jamfile
+++ b/src/system/libroot/posix/pthread/Jamfile
@@ -6,6 +6,7 @@ MergeObject posix_pthread.o :
 	pthread.c
 	pthread_atfork.c
 	pthread_attr.c
+	pthread_key.c
 	pthread_mutex.c
 	pthread_mutexattr.c
 ;
diff --git a/src/system/libroot/posix/pthread/pthread.c b/src/system/libroot/posix/pthread/pthread.c
index 7897534d1f..7ffabf0249 100644
--- a/src/system/libroot/posix/pthread/pthread.c
+++ b/src/system/libroot/posix/pthread/pthread.c
@@ -73,3 +73,10 @@ pthread_kill(pthread_t thread, int sig)
 	return kill(thread, sig);
 }
 
+
+int 
+pthread_detach(pthread_t thread)
+{
+	return B_NOT_ALLOWED;
+}
+
diff --git a/src/system/libroot/posix/pthread/pthread_key.c b/src/system/libroot/posix/pthread/pthread_key.c
new file mode 100644
index 0000000000..010fbc901a
--- /dev/null
+++ b/src/system/libroot/posix/pthread/pthread_key.c
@@ -0,0 +1,45 @@
+/* 
+** Copyright 2006, Jérôme Duval. All rights reserved.
+** Distributed under the terms of the MIT License.
+*/
+
+
+#include <TLS.h>
+#include <pthread.h>
+#include "pthread_private.h"
+
+int 
+pthread_key_create(pthread_key_t *key, void (*destructor)(void*))
+{
+	if (key == NULL)
+		return B_BAD_VALUE;
+	*key = tls_allocate();
+	if (*key > 0)
+		return B_OK;
+	return *key;
+}
+
+
+int 
+pthread_key_delete(pthread_key_t key)
+{
+	// we don't check if the key is valid
+	return B_OK;
+}
+
+
+void *
+pthread_getspecific(pthread_key_t key)
+{
+	return tls_get(key);
+}
+
+
+int 
+pthread_setspecific(pthread_key_t key, const void *value)
+{
+	// we don't check if the key is valid
+	tls_set(key, (void *)value);
+	return B_OK;
+}
+