Unable to "make js" on Ubuntu

[twiz911]

When I attempt to call make js on Ubuntu I get the following error.

/tmp/shoco$ make js emcc shoco.c -O3 -o shoco.js --closure 1 -s EXPORTED_FUNCTIONS="['_shoco_compress', '_shoco_decompress']" --pre-js pre.js INFO root: ======================================= INFO root: bootstrapping relooper... INFO root: bootstrap phase 1 Exception in thread Thread-3: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner self.run() File "/usr/lib/python2.7/threading.py", line 754, in run self.__target(*self.__args, **self.__kwargs) File "/usr/lib/python2.7/multiprocessing/pool.py", line 389, in _handle_results task = get() TypeError: ('__init__() takes at least 3 arguments (1 given)', <class 'subprocess.CalledProcessError'>, ())

It seems to be the same as here https://bugs.launchpad.net/ubuntu/+source/emscripten/+bug/1474449 and http://stackoverflow.com/questions/15314189/python-multiprocessing-pool-hangs-at-join

Does anyone know of a work around?

Thanks