diff --git a/external/mit/MesaLib/dist/src/gallium/auxiliary/os/os_thread.h b/external/mit/MesaLib/dist/src/gallium/auxiliary/os/os_thread.h
index ff46a891..6075b274 100644
--- a/external/mit/MesaLib/dist/src/gallium/auxiliary/os/os_thread.h
+++ b/external/mit/MesaLib/dist/src/gallium/auxiliary/os/os_thread.h
@@ -130,7 +130,7 @@ typedef cnd_t pipe_condvar;
  * pipe_barrier
  */
 
-#if (defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HURD)) && !defined(PIPE_OS_ANDROID)
+#if (defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HURD)) && !defined(PIPE_OS_ANDROID) && !defined(__minix)
 
 typedef pthread_barrier_t pipe_barrier;