setup.py: Print dependency installation hints
e.g. if "gobject-introspection-1.0.pc" isn't found and we are on Ubuntu we should suggest "sudo apt install libgirepository1.0-dev" ("ubuntu" in platform.platform().lower()
)
e.g. if "gobject-introspection-1.0.pc" isn't found and we are on Ubuntu we should suggest "sudo apt install libgirepository1.0-dev" ("ubuntu" in platform.platform().lower()
)