[tex-live] Initial installing ptex package reports errors

[Norbert Preining]

Dear Shun,

> # tlmgr install ptex
[...]
> This bug can be fixed by adding texlive local bin directory to PATH env:
> # export PATH=/usr/local/texlive/2017/bin/x86_64-linux:$PATH

How did you invoke tlmgr? The above prompt
	# tlmgr ...
assumes that tlmgr is in the PATH, so should be also ptex.

If you invoked tlmgr with
	$ /usr/local/texlive/2017/bin/x86_64-linux/tlmgr install ptex
then, no, sorry, this does not work.

> However, I'm a `tlmgr path add` user.  So, I'm finding another solutions.

Yes, because then both tlmgr and ptex are in the PATH.

> I think TLUtils::which should also search texlive local directory
> ($Master/bin/$arch), but, I understand the fixing affects widely, too.

No, it should *not*. The current method is the correct one, because:
fmtutil rebuilds the engines by calling
	$engine $args
thus, if $engine is *not* in the PATH, it will not work.
Also, we need to make sure that kpsewhich and other bin programs
are in the PATH in the *correct* version to get the correct files.
 
> Is there anyone having the best solution?

Yes, either add the TL bin directory to the PATH, or do tlmgr path add,
these are the only solutions.

All the best

Norbert

--
PREINING Norbert                               http://www.preining.info
Accelia Inc.     +    JAIST     +    TeX Live     +    Debian Developer
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