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Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here.

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Rob Landley 2012-11-13 06:32:03 -06:00
parent 6fa8404c5c
commit 4e79810a72
1 changed files with 30 additions and 0 deletions
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30
lib/portability.h
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@ -1,3 +1,8 @@
// Workarounds for horrible build environment idiosyncrasies.
// Instead of polluting the code with strange #ifdefs to work around bugs
// in specific compiler, library, or OS versions, localize all that here
// and in portability.c
// The tendency of gcc to produce stupid warnings continues with
// warn_unused_result, which warns about things like ignoring the return code
// of nice(2) (which is completely useless since -1 is a legitimate return
@ -7,6 +12,7 @@
#undef _FORTIFY_SOURCE
// Always use long file support.
#define _FILE_OFFSET_BITS 64
// This isn't in the spec, but it's how we determine what we're using.
@ -21,6 +27,30 @@ char *strptime(const char *buf, const char *format, struct tm *tm);
// Another one. "Function prototypes shall be provided." but aren't.
// http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html
char *crypt(const char *key, const char *salt);
// When building under obsolete glibc, hold its hand a bit.
#if __GLIBC_MINOR__ < 10 && !defined(__UCLIBC__)
#define AT_FDCWD -100
#define AT_SYMLINK_NOFOLLOW 0x100
#define AT_REMOVEDIR 0x200
int fstatat(int dirfd, const char *pathname, void *buf, int flags);
int readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz);
char *stpcpy(char *dest, const char *src);
#include <sys/stat.h>
int fchmodat(int dirfd, const char *pathname, mode_t mode, int flags);
int openat(int dirfd, const char *pathname, int flags, ...);
#include <dirent.h>
DIR *fdopendir(int fd);
#include <unistd.h>
int fchownat(int dirfd, const char *pathname,
uid_t owner, gid_t group, int flags);
int isblank(int c);
int unlinkat(int dirfd, const char *pathname, int flags);
#include <stdio.h>
ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream);
#endif
#endif
#ifdef __GNUC__