custom luatex format file

Question

I have to process a big number of files with the same preamble. Therefore I try to build a custom format file. The biggest »time eater« is font loading in lualatex, so I try to load the fonts in the format file.

I copied lualatex.ini and modified it slightly, so that it loads my preamble just before dumping:

mylualatex.ini:

% [...]
% the next line is added by me
\input mypreamble.tex

% restore \dump for derived formats (mylatex, etc) that might use it
\let\dump\DUMP
\let\DUMP\undefined
\dump

mypreamble.tex:

\documentclass[11pt]{scrartcl}
\usepackage[libertine={Ligatures=TeX,Numbers=OldStyle}]{libertineotf}

When I try to use the generated format file, I get an segfault:

> luatex \&mylualatex.fmt        
This is LuaTeX, Version beta-0.70.1-2011061416 (rev 4277) 
 restricted \write18 enabled.
[3]    4569 segmentation fault  luatex \&mylualatex.fmt

TIA, Marcus

Answer 1

This is a currently known error that has been encountered and reported by Martin Schröder. So you are currently out of luck.

Besides that, I am pretty sure (well 99.9% sure) that your fonts won't be dumped into the format.