node.js make error

    [rianders@web10 src]$ git clone git://github.com/joyent/node.git
    [rianders@web10 src]$ cd node
    [rianders@web10 node]$ grep -ri "bin/env python" . | cut -d ":" -f 1 | xargs sed -i 's/env python/env python2.6/'
    [rianders@web10 node]$ ./configure --jobs=1 --prefix=$HOME
    Checking for program g++ or c++          : /usr/bin/g++ 
    Checking for program cpp                 : /usr/bin/cpp 
    Checking for program ar                  : /usr/bin/ar 
    Checking for program ranlib              : /usr/bin/ranlib 
    Checking for g++                         : ok  
    Checking for program gcc or cc           : /usr/bin/gcc 
    Checking for program ar                  : /usr/bin/ar 
    Checking for program ranlib              : /usr/bin/ranlib 
    Checking for gcc                         : ok  
    Checking for library dl                  : yes 
    Checking for openssl                     : yes 
    Checking for library util                : yes 
    Checking for library rt                  : yes 
    Checking for CLOCK_MONOTONIC             : yes 
    Checking for fdatasync(2) with c++       : yes 
    'configure' finished successfully (0.772s)
    [rianders@web10 node]$ make
    Traceback (most recent call last):
      File "tools/waf-light", line 157, in ?
        import Scripting
      File "/home2/rianders/src/node/tools/wafadmin/Scripting.py", line 9, in ?
        import Utils, Configure, Build, Logs, Options, Environment, Task
      File "/home2/rianders/src/node/tools/wafadmin/Build.py", line 18, in ?
        import Runner, TaskGen, Node, Scripting, Utils, Environment, Task, Logs, Options
      File "/home2/rianders/src/node/tools/wafadmin/TaskGen.py", line 54, in ?
        class task_gen(object):
      File "/home2/rianders/src/node/tools/wafadmin/TaskGen.py", line 87, in task_gen
        traits = Utils.DefaultDict(set)
    NameError: name 'set' is not defined
    make: *** [program] Error 1