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-rw-r--r--posix/sys/types.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/posix/sys/types.h b/posix/sys/types.h
index 8178303c66..207ae8de8b 100644
--- a/posix/sys/types.h
+++ b/posix/sys/types.h
@@ -89,6 +89,12 @@ typedef int register_t __attribute__ ((__mode__ (word)));
#endif
+#ifdef __USE_SVID
+/* Data type for key value used in System V IPC functions. */
+typedef long int key_t;
+#endif
+
+
#ifdef __USE_BSD
#define FD_SETSIZE __FD_SETSIZE