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#ifndef _SYS_IPC_H #define _SYS_IPC_H #ifdef __cplusplus extern "C" { #endif #define __NEED_uid_t #define __NEED_gid_t #define __NEED_mode_t #define __NEED_key_t #include <bits/alltypes.h> #include <bits/ipc.h> key_t ftok (const char *, int); #ifdef __cplusplus } #endif #endif