--- vendor/core/libcutils/include/cutils/threads.h	2019-08-21 20:14:13.000000000 +0300
+++ -	2019-10-01 12:14:10.187934016 +0300
@@ -33,7 +33,9 @@
 // Deprecated: use android::base::GetThreadId instead, which doesn't truncate on Mac/Windows.
 //
 
+#ifndef __GLIBC__
 extern pid_t gettid();
+#endif
 
 //
 // Deprecated: use `_Thread_local` in C or `thread_local` in C++.
--- vendor/core/libcutils/threads.cpp	2018-10-25 18:22:12.000000000 +0300
+++ -	2019-10-01 12:14:27.548527357 +0300
@@ -32,7 +32,7 @@
 #endif
 
 // No definition needed for Android because we'll just pick up bionic's copy.
-#ifndef __ANDROID__
+#ifndef __GLIBC__
 pid_t gettid() {
 #if defined(__APPLE__)
   uint64_t tid;