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-rw-r--r--sysdeps/stub/bits/libc-lock.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/stub/bits/libc-lock.h b/sysdeps/stub/bits/libc-lock.h
index 4261728b2c..9da2aac314 100644
--- a/sysdeps/stub/bits/libc-lock.h
+++ b/sysdeps/stub/bits/libc-lock.h
@@ -80,4 +80,7 @@
 /* We need portable names for some of the functions.  */
 #define __libc_mutex_unlock
 
+/* Type for key of thread specific data.  */
+typedef int __libc_key_t;
+
 #endif	/* bits/libc-lock.h */