A few big items on the TODO have been completed.
The basic path-construction operators have been translated to C, factoring-out many interpreter cycles from each, resulting in a 50% speed increase in the drawing portions of `runtest`.
The type-checking optimization for operator_exec() has taken practical form and resulted in another 50% speed increase in the drawing portion of `runtest`.
The infamous `setdash` has been implemented.
`makefont` has been stubbed which finally allows xpost to execute the data/
m.ps and data/
s.ps illustrations of its own data structures generated by pic + troff.
Oh yeah, and the entire interpreter is in the library. And the alternate example program `xpost-client` is now compilable, and the bgr device is being debugged.