Read system-wide config file

[carlsmedstad]

Mako currently only reads user-wide config files by default - Would you consider adding a system-wide configuration file as well, e.g. at /etc/mako/config?

Much appreciated, thank you!

[emersion]

I think this is related: #434

[carlsmedstad]

Definitely is, missed that! Anything I can do to help?

This doesn't work well during development: /etc/mako/config is used as defaults, the user-provided config/flags are loaded on top, but /etc/mako/config might not be installed in which case mako won't run at all.

One pattern I've seen is to install a default config to the build directory that will be resolved with a path relative to the executable itself.

[johnrichardrinehart]

For what it's worth, I'm hacking around this, now. johnrichardrinehart/JohnOS@35ec9c3