Add makefile

[donSchoe]

Hi, could you make life more fun and add a makefile for me? ;-)

cheers

[sebastianst]

Yes, please!
And cmake configuration on top would be great.

[bert2002]

any idea how to build it from scratch? Would love to make a binary that runs on centos :)

[5chdn]

I am wondering the same. Also, created a post on ethereum stack exchange.