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-rw-r--r--hurd/hurd/threadvar.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/hurd/hurd/threadvar.h b/hurd/hurd/threadvar.h
index d68a8d8..1c888c8 100644
--- a/hurd/hurd/threadvar.h
+++ b/hurd/hurd/threadvar.h
@@ -20,6 +20,8 @@
#ifndef _HURD_THREADVAR_H
#define _HURD_THREADVAR_H
+#include <features.h>
+
/* The per-thread variables are found by ANDing this mask
with the value of the stack pointer and then adding this offset.