Index: kernel/generic/include/proc/thread.h
===================================================================
--- kernel/generic/include/proc/thread.h	(revision d9ece1cb4b86e7a2d4c513bf4f6e95007768812f)
+++ kernel/generic/include/proc/thread.h	(revision 371bd7d157f6602aa0ac4bd2e639fef084cecb89)
@@ -52,5 +52,5 @@
 #define THREAD_NAME_BUFLEN	20
 
-extern char *thread_states[];
+extern const char *thread_states[];
 
 /* Thread flags */
@@ -225,6 +225,6 @@
 
 extern void thread_init(void);
-extern thread_t *thread_create(void (*)(void *), void *, task_t *, int, char *,
-    bool);
+extern thread_t *thread_create(void (*)(void *), void *, task_t *, int,
+    const char *, bool);
 extern void thread_attach(thread_t *, task_t *);
 extern void thread_ready(thread_t *);