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O_NOCTTY13include/asm-alpha/fcntl.h#define O_NOCTTY  010000  /* not fcntl */
O_NOCTTY12include/asm-i386/fcntl.h#define O_NOCTTY    0400  /* not fcntl */
O_NOCTTY12include/asm-ppc/fcntl.h#define O_NOCTTY    0400  /* not fcntl */
O_NOCTTY16include/asm-sparc/fcntl.h#define O_NOCTTY  0x8000  /* not fcntl */