compiling project with cmake + ninja has no install rule

[sneakernets]

Background

Version of Chocolate Doom: 3.0.0 / 5ccf89a

Operating System and version: Raspbian 10 ARMv6

Game: (Doom/Heretic/Hexen/Strife/other) any

Any loaded WADs and mods (please include full command line): none

Bug description

Observed behavior: ninja: error: unknown target 'install'

Expected behavior: install script should run.