# Linux Dependencies: sudo apt-get install make gcc bison git python python-setuptools sudo easy_install pip The assembler used is [**rgbds**](https://github.com/bentley/rgbds). git clone git://github.com/bentley/rgbds.git cd rgbds sudo mkdir -p /usr/local/man/man{1,7} sudo make install cd .. Set up the repository. git clone git://github.com/kanzure/pokecrystal.git cd pokecrystal git submodule init git submodule update sudo pip install -r extras/requirements.txt - Copy your Pokémon Crystal rom to the directory. Name it **baserom.gbc**. To build **pokecrystal.gbc**: make This should take about 30 seconds. Subsequent builds are much faster (2-10 seconds). # OS X Download and install **Command Line Tools for Xcode**. Then follow the Linux instructions. If you have Xcode already, you can get Command Line Tools with: xcode-select --install # Windows It's recommended that you use a virtual machine running Linux or OS X. If you insist on Windows, use [**Cygwin**](http://cygwin.com/install.html) (32-bit). Dependencies are downloaded in the installer rather than the command line. Select the following packages: * make * git * python * python-setuptools * libsasl2 * ca-certificates To install rgbds, extract the contents of **http://iimarck.us/etc/rgbds.zip** and put them in `C:\cygwin\usr\local\bin`. Then set up the repository. In the **Cygwin terminal**: git clone git://github.com/kanzure/pokecrystal.git cd pokecrystal git submodule init git submodule update sudo easy_install pip sudo pip install -r extras/requirements.txt - Copy your Pokémon Crystal rom to the directory. Name it **baserom.gbc**. To build: make