[OS X TeX] old latexmk

[Herbert Schulz]

> On Nov 3, 2020, at 8:16 PM, G. M.-S. <lists.gms at gmail.com> wrote:
> 
> 
> Hello.
> 
> When using
> 
> % !TEX TS-program = pdflatexmk
> 
> TeXShop says
> 
> Latexmk: This is Latexmk, John Collins, 18 June 2019, version: 4.65.
> 
> which is an old version.
> 
> I have found it in
> 
> ~/Library/TeXShop/bin/tslatexmk/latexmk
> 
> and I wonder why it is there and not updated.
> 
> Should I delete the folder ~/Library/TeXShop?  Would opening TeXShop create a fresh version of this folder?
> 
> (I also have latexmk in /Library/TeX/texbin/latexmk, which is a symbolic link to 
> /usr/local/texlive/2020/texmf-dist/scripts/latexmk/latexmk.pl
> and is version 4.70b.)
> 
> Thanks in advance,
> 
> Guillermo

Howdy,

TeXShop's internal latexmk script is updated when TeXShop is updated.

It is possible to make (fairly simple?) changes to the latexmk based engines so that they use the version in the active TeX Distribution (I know recent versions of TeX Live include latexmk). If you really feel you can't wait for the next teXShop update let me know and I'll tell you what needs to be done to the engines.

There actually is a reason, although mostly historical, an internal version of latexmk is used. First, when the engines were introduced latexmk was not included in TeX Live. Second, each new internal version of latexmk passes through a test bed to check that there are no obvious problems; a long time ago there was a very short period of time when a problem was detected---and quickly corrected. 

Good Luck,

Herb Schulz
(herbs at wideopenwest dot com)