--- a/libcutils/include/cutils/threads.h

+++ b/libcutils/include/cutils/threads.h

@@ -33,7 +33,7 @@

 // Deprecated: use android::base::GetThreadId instead, which doesn't truncate on Mac/Windows.

 //

-extern pid_t gettid();

+extern pid_t gettid(void) __THROW;

 //

 // Deprecated: use `_Thread_local` in C or `thread_local` in C++.

--- a/libcutils/threads.cpp

+++ b/libcutils/threads.cpp

@@ -33,7 +33,7 @@

 // No definition needed for Android because we'll just pick up bionic's copy.

 #ifndef __ANDROID__

-pid_t gettid() {

+pid_t gettid(void) __THROW {

 #if defined(__APPLE__)

   uint64_t tid;

   pthread_threadid_np(NULL, &tid);