On 18/3/16 08:43, Peter Mukunda Pasedach wrote:
I eventually managed to build xetex (on Ubuntu 14.04, with a TeX Live
2015 installation kept up to date) by cloning the xetex sources from
sourceforge, then modified, as an experiment, xetex.web, replacing 63
by 1023 in the places that seemed relevant, only guessing which ones
they were, noticed that there's also small_number which is 63, which
might play a role, but I didn't touch it. Also tex.ch needed to be
adjusted to these changes. I had to install a few buildtools and
libraries until it would build (by running the build.sh script), after
some time I had a binary xetex in the build directory which after
backing up the one from my regular texlive installation I copied into
its place. Then `fmtutil --all`. After that I noticed that also
xdvipdfmx needed to be replaced, so I followed the procedure here
https://www.tug.org/texlive/doc/tlbuild.html#Build-one-package backed
up xdvipdfmx and replaced it with the new one. After that xelatex
works with simple files, but once I try a file with strings longer
than 63 characters it segfaults at the first of these, well, maybe
that was to be expected...
Not all of the related constants are exactly "63"..... there are some
instances of 64, 65, etc that need parallel changes.
(And not all "63"s should be changed. It shouldn't be necessary to touch
tex.ch, IIRC. But I think small_number does need extending to be
not-quite-so-small, as it gets used for various indexes etc in the
hyphenation code.)
I have a patch that lets it successfully hyphenate very-long words, but
still need to add a parameter to make the limit user-controllable (so
that existing behavior can be maintained for existing documents that
require stability). Maybe I can get this pushed out to sourceforge later
today...
JK
Peter
On Thu, Mar 17, 2016 at 10:11 AM, Philip Taylor <p.tay...@rhul.ac.uk> wrote:
Jonathan Kew wrote:
I'll try to get an experimental patch ready shortly. Or, of course,
someone else is welcome to try. I don't think it's very hard, but it is
more than just a single number.
I have never attempted to modify *TeX since it ceased to be compiled as
Pascal (a language which I liked and understood -- the complete opposite
of my non-relationship with C); what is involved in compiling *TeX these
days, with particular reference to compiling for the Windows platform ?
Philip Taylor
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