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-rw-r--r--include/sys/msg.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/sys/msg.h b/include/sys/msg.h
index 460275c5..ceedd1c6 100644
--- a/include/sys/msg.h
+++ b/include/sys/msg.h
@@ -37,6 +37,13 @@ int msgget (key_t, int);
ssize_t msgrcv (int, void *, size_t, long, int);
int msgsnd (int, const void *, size_t, int);
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+struct msgbuf {
+ long mtype;
+ char mtext[1];
+};
+#endif
+
#ifdef __cplusplus
}
#endif