diff --git a/libc/include/pthread.h b/libc/include/pthread.h
index 6330a6f..461bb44 100644
--- a/libc/include/pthread.h
+++ b/libc/include/pthread.h
@@ -174,7 +174,7 @@
 int pthread_mutex_destroy(pthread_mutex_t*) __nonnull((1));
 int pthread_mutex_init(pthread_mutex_t*, const pthread_mutexattr_t*) __nonnull((1));
 int pthread_mutex_lock(pthread_mutex_t*) __nonnull((1));
-int pthread_mutex_timedlock(pthread_mutex_t*, struct timespec*) __nonnull((1, 2));
+int pthread_mutex_timedlock(pthread_mutex_t*, const struct timespec*) __nonnull((1, 2));
 int pthread_mutex_trylock(pthread_mutex_t*) __nonnull((1));
 int pthread_mutex_unlock(pthread_mutex_t*) __nonnull((1));
 
@@ -245,23 +245,11 @@
 int pthread_cond_timedwait_monotonic(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
 #define HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1
 
-/*
- * Like pthread_cond_timedwait except 'reltime' is relative to the current time.
- * TODO: not like glibc; include in LP64?
- */
-int pthread_cond_timedwait_relative_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
-#define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1
+int pthread_cond_timedwait_relative_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*) /* TODO: __attribute__((deprecated("use pthread_cond_timedwait instead")))*/;
+#define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1 /* TODO: stop defining this to push LP32 off this API sooner. */
+int pthread_cond_timeout_np(pthread_cond_t*, pthread_mutex_t*, unsigned) /* TODO: __attribute__((deprecated("use pthread_cond_timedwait instead")))*/;
 
-/* TODO: not like glibc; include in LP64? */
-int pthread_cond_timeout_np(pthread_cond_t*, pthread_mutex_t*, unsigned);
-
-/* Like pthread_mutex_lock(), but will wait up to 'msecs' milli-seconds
- * before returning. Same return values as pthread_mutex_trylock though, i.e.
- * returns EBUSY if the lock could not be acquired after the timeout expired.
- *
- * TODO: replace with pthread_mutex_timedlock_np for LP64.
- */
-int pthread_mutex_lock_timeout_np(pthread_mutex_t*, unsigned);
+int pthread_mutex_lock_timeout_np(pthread_mutex_t*, unsigned) __attribute__((deprecated("use pthread_mutex_timedlock instead")));
 
 #endif /* !defined(__LP64__) */