it occurred to me that although git-bisect might find the commit that broke things, I should not use that commit to reduce a sample file against, especially when there have been fixes posted since!

So I upgrade to head, and cut-down the file again. And it still fails in the same way; with or without qt:

texmacs.bin: ./Typeset/Page/make_pages.cpp:50: box pager_rep::pages_format(array<page_item>, SI, SI, SI): Assertion `N(bs) != 0' failed.
 

I'm running on Ubuntu 10.4, running from the build-directory with this wrapper script:

#! /bin/bash

export TEXMACS_PATH=$HOME/Projects/texmacs/texmacs/trunk/src/TeXmacs/

exec $TEXMACS_PATH/bin/texmacs "$@"

-- 
Sam Liddicott
address@hidden