translating apt to eopkg, it would look something like this:
$ sudo eopkg install -c system.devel
$ sudo eopkg install automake
$ sudo eopkg install git
$ git clone https://github.com/fabiangreffrath/crispy-doom.git
$ cd crispy-doom
$ autoreconf -fiv
$ ./configure
$ make
If you got any missing dependencies during the process, it will tell you and you will have to satisfy the dependencies yourself.
