Merge pull request #465 from triplef/fix-gettid-android

Use SYS_gettid on Android
diff --git a/src/queue.c b/src/queue.c
index 44cb655..90f3cfa 100644
--- a/src/queue.c
+++ b/src/queue.c
@@ -7296,7 +7296,6 @@
 #include <sys/syscall.h>
 #endif
 
-#ifndef __ANDROID__
 #ifdef SYS_gettid
 DISPATCH_ALWAYS_INLINE
 static inline pid_t
@@ -7321,7 +7320,6 @@
 #else
 #error "SYS_gettid unavailable on this system"
 #endif /* SYS_gettid */
-#endif /* ! __ANDROID__ */
 
 #define _tsd_call_cleanup(k, f)  do { \
 		if ((f) && tsd->k) ((void(*)(void*))(f))(tsd->k); \