linkat (GNU Gnulib)

Gnulib module: linkat

Portability problems fixed by Gnulib:

This function is missing on some platforms: glibc 2.3.6, Mac OS X 10.9, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 10, Cygwin 1.5.x, mingw, MSVC 14, Android 4.4. But the replacement function is not safe to be used in libraries and is not multithread-safe.
This function fails to directly hardlink symlinks on some platforms: Mac OS X 10.10.
This function fails to reject trailing slashes on non-directories on some platforms: macOS 14, AIX 7.1, Solaris 11.3.
This functions does not support AT_SYMLINK_FOLLOW on some platforms: Linux kernel 2.6.17.

Portability problems not fixed by Gnulib:

linkat (fd, "directory", fd, "symlink/" ...) sets errno to EINVAL instead of EEXIST or ENOTDIR on some platforms: GNU/Hurd.