diff --git a/compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp b/compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp
--- a/compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp
+++ b/compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp
@@ -23,7 +23,6 @@
 #include <errno.h>
 #include <libkern/OSAtomic.h>
 #include <objc/objc-sync.h>
-#include <os/lock.h>
 #include <sys/ucontext.h>
 
 #if defined(__has_include) && __has_include(<xpc/xpc.h>)
@@ -247,7 +246,21 @@
   REAL(os_lock_unlock)(lock);
 }
 
-TSAN_INTERCEPTOR(void, os_unfair_lock_lock, os_unfair_lock_t lock) {
+extern "C" {
+  #define _LOCK_AVAILABILITY \
+    __OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0) \
+    __TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0)
+
+  _LOCK_AVAILABILITY void os_unfair_lock_lock(void *lock);
+  // NOTE: `options` actually has type `os_unfair_lock_options_t` but this
+  // should be ABI compatible.
+  _LOCK_AVAILABILITY void os_unfair_lock_lock_with_options(void *lock,
+                                                           u32 options);
+  _LOCK_AVAILABILITY bool os_unfair_lock_trylock(void *lock);
+  _LOCK_AVAILABILITY void os_unfair_lock_unlock(void *lock);
+}
+
+TSAN_INTERCEPTOR(void, os_unfair_lock_lock, void *lock) {
   if (!cur_thread()->is_inited || cur_thread()->is_dead) {
     return REAL(os_unfair_lock_lock)(lock);
   }
@@ -256,7 +269,7 @@
   Acquire(thr, pc, (uptr)lock);
 }
 
-TSAN_INTERCEPTOR(void, os_unfair_lock_lock_with_options, os_unfair_lock_t lock,
+TSAN_INTERCEPTOR(void, os_unfair_lock_lock_with_options, void *lock,
                  u32 options) {
   if (!cur_thread()->is_inited || cur_thread()->is_dead) {
     return REAL(os_unfair_lock_lock_with_options)(lock, options);
@@ -266,7 +279,7 @@
   Acquire(thr, pc, (uptr)lock);
 }
 
-TSAN_INTERCEPTOR(bool, os_unfair_lock_trylock, os_unfair_lock_t lock) {
+TSAN_INTERCEPTOR(bool, os_unfair_lock_trylock, void *lock) {
   if (!cur_thread()->is_inited || cur_thread()->is_dead) {
     return REAL(os_unfair_lock_trylock)(lock);
   }
@@ -277,7 +290,7 @@
   return result;
 }
 
-TSAN_INTERCEPTOR(void, os_unfair_lock_unlock, os_unfair_lock_t lock) {
+TSAN_INTERCEPTOR(void, os_unfair_lock_unlock, void *lock) {
   if (!cur_thread()->is_inited || cur_thread()->is_dead) {
     return REAL(os_unfair_lock_unlock)(lock);
   }