---
 ports/sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.h |    1 +
 1 file changed, 1 insertion(+)

--- ports/sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.h
+++ ports/sysdeps/unix/sysv/linux/arm/nptl/lowlevellock.h
@@ -25,6 +25,7 @@
 #include <atomic.h>
 #include <sysdep.h>
 #include <kernel-features.h>
+#include <tls.h>		/* Need THREAD_*, and header.*.  */
 
 #define FUTEX_WAIT		0
 #define FUTEX_WAKE		1