I have a generic 16x2 LCD with a pinout strikingly identical to that pictured here: [reprap.org]

Its instructions say to enable ULTRA_LCD in Configuration.h, which causes this compile error: [bpaste.net]

Are the instructions out of date? I can't find anything else. What should I do?

tamarin on #reprap found this bug: [github.com]

Which explains a lot. I've only enabled half a feature, and it's complaining about missing bits.

Posting here for future struggling googlers.