Noticed after building a curses-only binary; configuration setting
"terminal info library" is only of interest as an optional feature
when the build includes tty. There were several other settings that
apply to some interfaces and not others but would be listed if the
feature was defined (possibly after building for an interface which
supported it, then left in place when switching to another which
doesn't).
I left most of those with commented out conditionals in case other
interfaces start supporting them. So you might still get something
like "tiles file in XPM format" for a binary that doesn't support
tiles if USE_XPM has been defined for some reason.
88a48cd6ff