On Fri, 9 Jun 2023, Hans Hagen via ntg-context wrote:

> On 6/9/2023 5:57 AM, Aditya Mahajan via ntg-context wrote:
> > On Thu, 8 Jun 2023, Jigé via ntg-context wrote:
> > 
> >>   Thanks a lot Aditya.
> >>
> >> The very simple TikZ example with the cross works.
> >> The more complex example with the trigonometric circle from the pgf
> >> manual,
> >> quoted in https://wiki.contextgarden.net/TikZ , does not compile
> >> unless you also comment out
> >>   or find(n,"pdftex")
> >> in line 181 of the mtx-install-modules.lua file
> >> before doing mtxrun --script install-modules --install tikz
> >> but I could guess that from a:
> >>   Driver file ``pgfsys-pdftex.def'' not found..
> >> message
> > 
> > Ah so tikz uses both drivers.
> > 
> > @Hans, so the validate function should be:
> > 
> > local function validate(n)
> >      return not (
> >             find(n,"latex")
> >       -- or find(n,"lualatex")
> >          or find(n,"plain")
> >          or find(n,"optex")
> >       -- or find(n,"luatex")
> >       -- or find(n,"pdftex")
> >      )
> > end
> so an alternative is to ignore deleting those two files
> 
> what is in lualatex that we need? can hardly be something generic

pgf/tikz doesn't have anything with lualatex in the name. The only files that match luatex/pdftex are these def files. 

> (it being pretty big makes me wonder if we should have texmf-tikz for it as i
> don't want to polute the modules tree too much - it gets hard to check other
> modules for instance when i want to see if some change has impact)

If it makes things easier to manage, we can definitely do that. We already have 7 trees, one more isn't going to make any difference :-)

Aditya