For Ubuntu 16.04 with cuda 7.5

sudo apt-get install python-numpy python-scipy python-dev python-pip python-nose g++ libopenblas-dev git sudo pip install Theano

# cuda 7.5 don't support the default g++ version. Install an supported version and make it the default. sudo apt-get install g++-4.9

sudo update-alternatives –install /usr/bin/gcc gcc /usr/bin/gcc-4.9 20 sudo update-alternatives –install /usr/bin/gcc gcc /usr/bin/gcc-5 10

sudo update-alternatives –install /usr/bin/g++ g++ /usr/bin/g++-4.9 20 sudo update-alternatives –install /usr/bin/g++ g++ /usr/bin/g++-5 10

sudo update-alternatives –install /usr/bin/cc cc /usr/bin/gcc 30 sudo update-alternatives –set cc /usr/bin/gcc

sudo update-alternatives –install /usr/bin/c++ c++ /usr/bin/g++ 30 sudo update-alternatives –set c++ /usr/bin/g++