unlinkat, symlinkat in wrong headers

Tue Dec 8 00:05:00 GMT 2009

Per POSIX, unlinkat should be declared in <unistd.h>; but cygwin only declares 
it in <fcntl.h>:
$ echo '#include <unistd.h>' | gcc -E - | grep unlink
int __attribute__((__cdecl__)) unlink (const char *__path );
$ echo '#include <fcntl.h>' | gcc -E - | grep unlink
extern int unlinkat (int, const char *, int);
Likewise, symlinkat should be in <unistd.h>; but cygwin only declares it in 
<stdio.h>:
$ echo '#include <unistd.h>' | gcc -E - | grep 'symlink'
int __attribute__((__cdecl__)) symlink (const char *__name1, const char 
*__name2);
$ echo '#include <stdio.h>' | gcc -E - | grep 'symlink'
int __attribute__((__cdecl__)) symlinkat (const char *, int, const char *);
-- 
Eric Blake
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