* python 3k compatibility
  - junk print (replace by what?)
  - junk has_key (replace by what?)
  - move to new style classes: class Foo -> class Foo (object).
    This means that all sorts of
      if type (foo) == type (bar)
    constructions barf
  - junk ` ` constucts (replace by what?)

*  we moeten env ook nog ergens losknippen. We zetten nu onze
   eigen variabelen over de user zijn env heen, maar dan kan er dus (niet
   gechecksumde) info uit de user environment lekken.

* add stage: autoupdate, move autoupdate kludges from patch stage

* add functions: must_autoupdate, must_configure that return TRUE.
  and check for these before running autoupdate and configure.
  remove specific code from lilypond.

* junk arbitrary SdkBuild class, handle any build dependencies
  through [module.py].build_dependencies.

* use better names for freebsd-runtime, darwin-sdk, which probably
  are in fact kernel-headers and libc+headers

* use of member functions vs class variables/static functions:
   - need_source_tree
   - build_dependencies
   - dependencies
   - force_sequential_build

* Fix --branch mess:

  -gub: --branch=<PACKAGE>=<BRANCH>:<LOCAL_BRANCH>, eg
        --branch=lilypond=master-git.sv.gnu.org-lilypond.git
  -cron-builder: --branch=<LILYPOND-BRANCH>
                 --local-branch=<LILYPOND-LOCAL-BRANCH>
    + `branch' means remote branch
  -installer-builder: --branch=<PACKAGE>=<LOCAL_BRANCH>
    + `branch' means local branch

* Remove duplication of directory layout.  layout is partly duplicated
  in test-lily/* and *.make.  gub/settings should usable now from any
  .py, gub/settings.py --plaftorm '' prints layout for use in sh/make.

* Document and make easier to add new platform

    -3. gub/settings.py
    -2. gub/config_cache.py
    -1. gub/installer.py
     0. lilypond.make
     1. toevoegen aan platforms in makefile
     2. toevoegen aan platform lijst, die in test-lily/upload wordt gebruikt.

RENAMES

* repository -> source
* ./gub -> gublib ?
* ./gub/specs -> gub/builds?

* Robustification against ^C, esp. in in repository.download ()

* Use names of stage iso number in status/stamp file.

* move Scons, Bjam recipes to gub lib.

* code cygwin installer as alternative build spec.

* code .deb installer as alternative build spec.

* look at other installer-builders -> build spec?

* Split build recipes into Basic (configure??; make; make install),
  AutoTools

* Automagically do:  # # FIXME libtool too olds for autotool packages.

* move autotools patching to autogen/prepare_configure stage.

* fix all instances of makeflags () and compile/install

* move wrap_pkg_config from libgphoto2 to target/build spec (note
  configure: PATH setting?)

* Bootstrap whole toolchain from source on more platforms (freebsd)?

* Fix configure/make command env var settings (grep FIXME)

 @subst_method
 def CFLAGS(self):
    return 'bla'

or

 def init(self):
   self.CFLAGS='bla'   ? see noweb, no go?

* Packages file with download and update facility, like
  cyg-apt.

LOWER PRIORITY

* do not package emtpy subpackages (doc, devel)

- replace os. calls with os.context wrapper ones (make a real
  dry-run to quick-test all .py scripts?)

- better name for gubb.py

- name for gub-tester (test-repo, repo-builder?)

- Split gub/*py into packager, builder, platform

- Explode inheritance, and use membership in GUP

- move patches upstream, eg.

  * libpng

  * python x-compile.

  * cygwin GCC

  * zlib

- update packages:

  * Gnome 2.16

- strip lily specific stuff from installer.py 

- Bugfixes:

- junk Makefile, create python based driver.

- prerequisites: curl, gcc, libc-dev
  + [lilypond: autoconf (for automake),
    	       bison (for flex),
	       g++ (for python),
	       texinfo (for gettext),
	       libncurses-dev (for texinfo),
	       libcurl3-dev (for git),
	       libexpat-dev (for git),
	       libjpeg-dev (for netpbm),
	       libtiff-dev (for netpbm),
	       libx11-dev (for netpbm),
	       svn (for ghostscript),
	       python-gdbm (for gub: gub/gup.py) this means, btw, that gub
	          does not run with python from local; it lacks gdbm,
               inkscape (for lilypond doc)]