link
====

POSIX specification: http://www.opengroup.org/onlinepubs/9699919799/functions/link.html

Gnulib module: link

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: mingw.

  * This function fails to reject trailing slashes on non-directories on some platforms: Solaris, Cygwin 1.5.x.

Portability problems not fixed by Gnulib: