I work with large TikZ graphics for which the default bufsize of lualatex/pdflatex is too small:
Unable to read an entire line---bufsize=200000. Please increase buf_size in texmf.cnf.
Is there a quick way to increase the buffer size for either lualatex or pdflatex without editing texmf.cnf?
If there is no quick solution, could someone please describe the obscure configuration mechanism of LaTeX that needs to be executed to process changes made to texmf.cf?
Also, where is texmf.cnf in a standard installation of a Ubuntu texlive package? What happens to my changes to texmf.cf when I update the texlive package?