--- a/squeezelite.h
+++ b/squeezelite.h
@@ -316,6 +316,10 @@
 typedef int32_t   s32_t;
 typedef int64_t   s64_t;
 
+#if defined __ANDROID__ && __ANDROID__API__ < 28
+#define pthread_mutexattr_setprotocol(attr, protocol) (EINVAL)
+#endif
+
 #define mutex_type pthread_mutex_t
 #define mutex_create(m) pthread_mutex_init(&m, NULL)
 #define mutex_create_p(m) pthread_mutexattr_t attr; pthread_mutexattr_init(&attr); pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT); pthread_mutex_init(&m, &attr); pthread_mutexattr_destroy(&attr)