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various header cleanups, some related to _BSD_SOURCE addition

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there is no reason to avoid multiple identical macro definitions; this
is perfectly legal C, and even with the maximal warning options
enabled, gcc does not issue any warning for it.
This commit is contained in:
Rich Felker
2012-05-22 22:04:55 -04:00
parent 9f370fa99e
commit 671ffab776
3 changed files with 9 additions and 17 deletions
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15
include/unistd.h
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@ -9,17 +9,14 @@ extern "C" {
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
#undef SEEK_SET
#undef SEEK_CUR
#undef SEEK_END
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#if defined(_BSD_SOURCE) && !defined(L_SET)
#define L_SET SEEK_SET
#define L_INCR SEEK_CUR
#define L_XTND SEEK_END
#if defined(_BSD_SOURCE)
#define L_SET 0
#define L_INCR 1
#define L_XTND 2
#endif
#undef NULL
@ -69,12 +66,10 @@ int rmdir(const char *);
int truncate(const char *, off_t);
int ftruncate(int, off_t);
#ifndef F_OK
#define F_OK 0
#define R_OK 4
#define W_OK 2
#define X_OK 1
#endif
int access(const char *, int);
int faccessat(int, const char *, int, int);
@ -136,12 +131,10 @@ long fpathconf(int, int);
long sysconf(int);
size_t confstr(int, char *, size_t);
#ifndef F_ULOCK
#define F_ULOCK 0
#define F_LOCK 1
#define F_TLOCK 2
#define F_TEST 3
#endif
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
int lockf(int, int, off_t);