texlive distfile issues

The latest Darwin bulk build has exposed a problem with the texlive 
distribution:

   https://reports.pkgci.org/Darwin/14.5/arm64/20260403T191802Z/report.html
   https://reports.pkgci.org/Darwin/14.5/arm64/20260403T191802Z/kpathsea-6.4.2/checksum.log

There are at least two issues:

  * The primary MASTER_SITE is set to ftp://tug.org, which appears to be 
    temperamental.  I can fetch from it from my home, but not from the 
    network my macOS host is on (which is otherwise absolutely fine 
    fetching from the rest of the internet).  I don't know if they are 
    performing large network blocks or something.

  * The texlive-20260301-source.tar.xz file downloaded from the second 
    MASTER_SITE (https://mirrors.ctan.org) differs from the one 
    distributed by tug.org, and causes the BLAKE2s checksum failure.

The latter in particular is really concerning.  Are upstream in a habit 
of overwriting published distfiles or something?

Given the unreliability of ftp://tug.org I think it would also make 
sense to reorder the MASTER_SITES in texlive/Makefile.common, and 
possibly add some additional upstream sites to avoid FTP issues.

-- 
Jonathan Perkin                    pkgsrc.smartos.org
Open Source Complete Cloud   www.tritondatacenter.com