0x01 - You must first ensure that the new version of python, gcc, cmake was installed

e.g. My laptop and software:

• Ubuntu 17.04
• Python 2.7.13 (default, Jan 19 2017, 14:48:08)
• GCC version 6.3.0 20170406 (Ubuntu 6.3.0-12ubuntu2)
• cmake version 3.11.3

0x02 - Need to install the build-essential package

sudo apt-get install build-essential

0x03 - This step on github is wrong. you may try the following method:

cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_INCLUDE_TESTS=OFF ../obfuscator/