Le 20/11/2022 à 16:23, Werner LEMBERG a écrit :
There are a bunch of LaTeX packages that only work with a specific TeX engine, and which need special input code for that. For example, `fontspec` (with its excellent OpenType support) only works with XeTeX and luatex. Or think of 'lyluatex', which obviously needs luatex.
Yes, absolutely. This is exactly why I am surprised that some people set global environment variables that select a TeX engine "to always use the same". What tools do they have an effect on? Best, Jean
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