tightvnc: fatal error: ' X11 .rules' file not found

[Liontooth (David Liontooth)]

On a High Sierra 10.13.5 (17F77), I run into bug #40862:

:info:build .././/config/cf/vnc.def:111:23: warning: missing terminating '"' character [-Winvalid-pp-token]
:info:build #define XvncRelease             \"TightVNC-1.3.10\"
:info:build                                  ^
:info:build In file included from Imakefile.c:8:
:info:build In file included from .././/config/cf/Imake.tmpl:164:
:info:build .././/config/cf/Imake.rules:1298:27: warning: empty character constant [-Winvalid-pp-token]
:info:build         for flag in ${MAKEFLAGS} ''; do \                               @@\
:info:build                                  ^
:info:build In file included from Imakefile.c:8:
:info:build .././/config/cf/Imake.tmpl:1320:10: fatal error: ' X11 .rules' file not found
:info:build #include ProjectRulesFile
:info:build          ^

This is discussed for BSD here, ​https://forums.ghostbsd.org/viewtopic.php?f=58&t=713&sid=555d1f9c93fcdf6909babbb0fd64550b&start=10, with no solution.

It's possible I just need to to a clean reinstall.