Brubeck install --zmq issue
===

I am trying to install brubeck according to http://emptysquare.net/blog/how-to-do-an-isolated-install-of-brubeck/ but the last 2 steps are not working properly.

I have done this part:

export LIBRARY_PATH=$VIRTUAL_ENV/lib
export C_INCLUDE_PATH=$VIRTUAL_ENV/include
pip install -I -r ./envs/brubeck.reqs

But I get this error message:

> Failed to link ZMQ test program.  Please check to make sure:
> 
> 
>     * You have a C compiler installed
> 
>     * A development version of Python is installed (including header files)
> 
>     * A development version of ZMQ >= 2.1.4 is installed (including header files)
> 
>     * If ZMQ is not in a default location, supply the argument --zmq=<path>
> 
>     * If you did recently install ZMQ to a default location,
> 
>       try rebuilding the ld cache with `sudo ldconfig`
> 
>       or specify zmq's location with `--zmq=/usr/local`
> 
> error: command 'gcc' failed with exit status 1

how can I fix this? Creating a symlink to gcc does not solve anything. I have installed everything inside a virtualenv.