Bugzilla #14912 : Modular scripts

[Jesse Adkins]

Since there's been a lot of discussion about the modular scripts
lately, I figure this is a good time to mention #14912. This bug has a
tarball with a bunch of scripts intended for modular. Perhaps someone
can figure out if they're any good or not.

Snippets from the readme, in case they help:
xorg-ext-deps.pl:
  This script attempts to check for missing external packages, so that
the build should not fail at some random place due to a missing requirement.
  The option -b can be used to print a list of external files accessed
during build, in a perl variable format.

  You should run xorg-ext-deps.pl before continuing, to check for
missing external dependencies.

  This script has not been updated for almost an year (be warned).

xorg-build.pl:
  First it is required to clone freedesktop modules.

  Use "git-config --global xorg.repository repository"
if the default git://anongit.freedesktop.org/git does not apply.

  Use "git-config --global xorg.checkoutdir directory"
The default value is "$HOME/anongit.freedesktop.org".
If you already have a clone, you may set to that value. The script
doesn't modify any files, just update or checkout.

  Now you can run:

  % ./xorg-build.pl up

xorg-install.sh:
  This file must be in your path when you run xorg-build.pl. It
is a slightly modified version of automake-1.10 install-sh, that
defaults to the -C option (copy_on_change), but it also ignores
attributes, owner and group changes.
  This script is mean't to signficantly increase the time required
to ensure changes in one package won't break code elsewhere.

xorg-deps.pl:
  Finally, the script xorg-deps.pl just parses the dependency information
generated by "xorg-build.pl -g" and prints the order packages must be
built.
  To use it, run:
./xorg-deps.pl 2>&1 | less

  Note that the order may not look logical, as tsort does topological
sort, and there is not specific ordering of modules in the "same level".