[tlbuild] mktexdir.opt install failure

[Mojca Miklavec]

On 26 September 2016 at 23:33, Karl Berry wrote:
>     /opt/csw/bin/ginstall: cannot create regular file
>     '/path/to/texlive/Build/source/inst/texmf-dist/web2c/mktexdir.opt':
>     File exists
>
> 1) I don't know of anything that has changed wrt this since the 2016
> release, so I don't know how to deal with it.  At first blush, it looks
> like a random race condition and you were just lucky not to hit it
> before.  I'm not sure how to debug.
>
> 2) If you're going to do parallel builds, I think you should change the
> install dir too (set TL_INSTALL_DEST).  I hope that will eliminate the
> problem.

Thank you. I wasn't able to reproduce the problem the second time
(without that change), but your explanation about race condition makes
sense. I added that variable now in my local build now.

Mojca