+#if @GNULIB_LINK@
+/* Create a new hard link for an existing file.
+ Return 0 if successful, otherwise -1 and errno set.
+ See POSIX:2001 specification
+ <http://www.opengroup.org/susv3xsh/link.html>. */
+# if !@HAVE_LINK@
+extern int link (const char *path1, const char *path2);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef link
+# define link(path1,path2) \
+ (GL_LINK_WARNING ("link is unportable - " \
+ "use gnulib module link for portability"), \
+ link (path1, path2))
+#endif
+
+