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-rw-r--r--nptl/descr.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/nptl/descr.h b/nptl/descr.h
index 00cad1aa83..203b62a2bf 100644
--- a/nptl/descr.h
+++ b/nptl/descr.h
@@ -37,6 +37,7 @@
 #endif
 #define __need_res_state
 #include <resolv.h>
+#include <kernel-features.h>
 
 #ifndef TCB_ALIGNMENT
 # define TCB_ALIGNMENT	sizeof (double)
@@ -131,6 +132,9 @@ struct pthread
     struct
     {
       int multiple_threads;
+# ifndef __ASSUME_PRIVATE_FUTEX
+      int private_futex;
+# endif
     } header;
 #endif