MacTeX Live 2022 Install Hassels

[Karl Berry]

Hi John (and Dick),

    By the way, at the end of the TeX Live 2022 there is a paragraph
    about setting various environment variables.  

I presume you mean PATH (and, the rather uninteresting, MANPATH and
INFOPATH).

    This should be ignored under macOS.

I don't understand why.  Something has to set PATH. Indeed, wasn't that
exactly Marek's problem?

Our generic install-tl script cannot assume (or know) that it is being
called by the MacTeX installer. It is quite possible to install and use
TL on Macs without the /Library stuff or anything MacTeX-specific at
all. It all depends on what the user wants.

The MacTeX installer could set the envvar TEXLIVE_INSTALL_NO_WELCOME=1
before calling install-tl to omit the welcome msg. It should probably do
that. Dick? --best, karl.

P.S. There are other TEXLIVE_INSTALL_* envvars to control various
aspects of install-tl behavior, apart from the cmd line options.
https://www.tug.org/texlive/doc/install-tl.html#ENVIRONMENT-VARIABLES