[Texmacs-dev] latex-needs patch

[Nix N. Nix]

Patch #1473 on savannah is the "final" incarnation of the automatic
\usepackage argument generation mechanism based on Joris' latex-needs
DRD (for now).  I suggest that before it gets applied to the main
TeXmacs tree we all try it on our various TeXmacs documents, in case I
missed a few entries.

Alternatively, if someone has a "Christmas tree" TeXmacs file (i.e., a
TeXmacs file that exploits every feature of a TeXmacs document), please
apply this patch, then convert the document to LaTeX, then compile the
LaTeX and let me know whether it compiles, given that it compiled fine
before the application of the patch.  Better yet, you could also send me
this "Christmas tree" file so I can directly play with it.

I don't think I missed any of the symbols, from the various symbol
fonts, because I did the following for, say, "wasy.enc":

cat ~/TeXmacs-1.0.1.13-src/TeXmacs-1.0.1.13/fonts/enc/wasy.enc | awk
'{for (Nix = 1 ; Nix <= NF ; Nix++) print ($Nix) ;}' | grep '^"' | grep
-v '^""' | sed 's/"//g' | awk '{print ("  (" $1 " \"wasysym\")") ;}' |
sort >> tmtex-preamble.scm

after which I appended the lines created by this command line to the
DRD.

However, I may have missed some environments whose definition requires
certain packages.

As well, as I mentioned before, I couldn't find any of these
environments:

descriptionaligned
descriptiondash
descriptionlong

Perhaps they require their own \newcommand{...}{...} preamble.