[tlbuild] Gregorio test failures

[Jakub Jelinek]

On Fri, Jan 22, 2016 at 09:55:19AM -0500, Henry So Jr. wrote:
> In prior discussions with TeX Live developers, installing gnulibs would
> make the build process significantly more complicated, so I'd like to
> avoid it if possible.

gnulib is just a collection of individual source files one can use in
various projects.  So you can pick just the realpath from there, or some
other function as needed.

	Jakub