options/posix: Add struct msginfo

Author: Dennisbonke

options/posix/include/sys/msg.h

@@ -1,6 +1,8 @@
 #ifndef _SYS_MSG_H
 #define _SYS_MSG_H
 
+#include <mlibc-config.h>
+
 #include <abi-bits/msg.h>
 #include <bits/size_t.h>
 #include <bits/ssize_t.h>
@@ -9,6 +11,19 @@
 extern "C" {
 #endif
 
+#if defined(_DEFAULT_SOURCE)
+struct msginfo {
+	int msgpool;
+	int msgmap;
+	int msgmax;
+	int msgmnb;
+	int msgmni;
+	int msgssz;
+	int msgtql;
+	unsigned short int msgseg;
+};
+#endif /* defined(_DEFAULT_SOURCE) */
+
 #ifndef __MLIBC_ABI_ONLY
 
 int msgget(key_t __key, int __msgflg);