[fixed] 在keil环境下 compilers\armlibc\sys\unistd.h 与 libc_fcntl.h的宏定义发生了重复定义的冲突
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@ -36,16 +36,34 @@
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#define _FNDELAY _FNONBLOCK /* non blocking I/O (4.2 style) */
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#define _FNOCTTY 0x8000 /* don't assign a ctty on this open */
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#ifndef O_RDONLY
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#define O_RDONLY 0 /* +1 == FREAD */
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#endif
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#ifndef O_WRONLY
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#define O_WRONLY 1 /* +1 == FWRITE */
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#endif
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#ifndef O_RDWR
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#define O_RDWR 2 /* +1 == FREAD|FWRITE */
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#endif
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#ifndef O_APPEND
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#define O_APPEND _FAPPEND
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#endif
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#ifndef O_CREAT
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#define O_CREAT _FCREAT
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#endif
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#ifndef O_TRUNC
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#define O_TRUNC _FTRUNC
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#endif
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#ifndef O_EXCL
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#define O_EXCL _FEXCL
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#endif
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#ifndef O_SYNC
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#define O_SYNC _FSYNC
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#endif
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#endif
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int isatty (int fd);
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char * ttyname (int desc);
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