[Gambas-user] Errors compiling on Ubuntu 17.04 zesty

[Gianluigi]

A friend of ours of Italian forum who has Ubuntu 17.04 zesty, compiling
Gambas gets error of Impossible to find package for libsage-dev and
llvm-3.5-dev.
I searched on https://packages.ubuntu.com/ and concerning llvm the oldest
library available in zesty is 3.7, while concerning libsage I get nothing,
but looking in descriptions for Supports OpenGL in SDL applications, I
seemed to understand that gambas3-gb-opengl-sge should replace it.
How to change the LLVM_CONFIG = llvm-config-3.5 command if there is no 3.5?
Can you help me?

Regards

Gianluigi