Build

First, of all, you need to install prerequisites (debian based distributions):

sudo apt-get install gcc g++ git subversion git-svn make\
 perl gawk expect tcl texinfo bison autoconf automake cmake

Note, that when your python executable points to python3 (you can check that by running python --version) you have to replace "cmake .." with "cmake -DPYTHON_EXECUTABLE=/path/to/python2 .." in the following steps (path is /usr/bin/python2 in most cases)

Next, get the sources and build it:

git clone git://github.com/llvm-dcpu16/llvm-dcpu16.git # Checkout LLVM
cd llvm-dcpu16/tools
git clone git://github.com/llvm-dcpu16/clang.git # Checkout Clang
mkdir ../cbuild
cd ../cbuild
cmake ..
make -j4

You can install the compiler by running make install.