Apr16 SVN download does not build on Ubuntu 9.04

[GoogleCodeExporter]

What steps will reproduce the problem?
1. in root directory type: scons

What is the expected output? What do you see instead?
here is the output of scons:
scons
scons: Reading SConscript files ...
Checking for C++ library m... yes
Checking for C++ library pthread... yes
Checking for C++ library fltk... yes
Checking for C++ library X11... yes
Checking for C++ library GL... yes
Checking for C++ library GLU... yes
KeyError: 'LIBGL_DRIVERS_PATH':
  File "/home/stochastic/InstalledPrograms/animata-read-only/SConstruct",
line 27:
    'PROFILE', 'STATIC'])
  File "/usr/lib/scons/SCons/Script/SConscript.py", line 612:
    return apply(method, args, kw)
  File "/usr/lib/scons/SCons/Script/SConscript.py", line 549:
    return apply(_SConscript, [self.fs,] + files, subst_kw)
  File "/usr/lib/scons/SCons/Script/SConscript.py", line 259:
    exec _file_ in call_stack[-1].globals
  File
"/home/stochastic/InstalledPrograms/animata-read-only/src/SConscript", line
126:
    env['ENV']['LIBGL_DRIVERS_PATH'] = os.environ['LIBGL_DRIVERS_PATH']
  File "/usr/lib/python2.6/UserDict.py", line 22:
    raise KeyError(key)

What version of the product are you using? On what operating system?
This is from an SVN checkout on Apr16th 2009 on Ubuntu 9.04 (release candidate)

Original issue reported on code.google.com by afterthe...@gmail.com on 16 Apr 2009 at 9:06

[GoogleCodeExporter]

as a quick fix try to comment out the 
env['ENV']['LIBGL_DRIVERS_PATH'] = os.environ['LIBGL_DRIVERS_PATH']
line in src/SConscript by putting a # in the beginning of the line.

Original comment by gabor.p...@gmail.com on 17 Apr 2009 at 4:40

[GoogleCodeExporter]

That fix builds the software successfully, but the software's working area 
(black
screen) is always ontop of all menus & open file dialogs and doesn't show 
anything
(it just stays black).  Tried with both compiz on and off - should I file a new 
issue
tracker for this issue?

Original comment by afterthe...@gmail.com on 17 Apr 2009 at 6:08

[GoogleCodeExporter]

i'm not sure, but you might have some opengl driver/installation problem. the 
lack of
LIBGL_DRIVERS_PATH and these symptoms imply this at least.

Original comment by gabor.p...@gmail.com on 20 Apr 2009 at 11:27