[luatex] detailed 'diagnostic' of MikTeX/Lua*/fontspec issues

[Evan Cooch]

> You should give some informations about the desktop path so that
> Philipp can debug the code.

I will do that.

>
>   
>> ))(load luc:
>> $TEXMFCACHE/luatex-cache/generic/fonts/otf/xits-math.luc)(load luc:
>>    $TEXMFCACHE/luatex-cache/generic/fonts/otf/xits-mathbold.luc)
>> ! Undefined control sequence.
>> \um_set_mathcode:nnn #1#2#3^^@-\Umathcode
>>                                           \int_eval:n {#1}=\mathchar at type
>> #2\c...
>> l.6 \setmathfont{XITS Math}
> That's due to the outdated lualatexiniconfig.tex I mentioned on the
> miktex list.
>
> Copy lualatexiniconfig.tex to some local texmf tree in a folder
> tex\latex\latexconfig
>
> Then add 'umath' behind 'pdftex' like this:
>
>      tex.extraprimitives('etex', 'pdftex', 'umath'))
>
> Then update the fndb and rebuild the lualatex formats (probably with
> the user-gui of miktex, tab "formats", select lualatex and click on
> build).
>

Ah yes, that does seem to solve the problem. Danke!