- Fix the '==' -> '=' in configure.
- Fix the build [1], dependency and plist if audio/espeak is installed in the
system.
- Add a new knob, WITH_ESPEAK, with autocheck.
- Bump the PORTREVISION.
PR: ports/111217 [1]
Reported by: Jukka A. Ukkonen <jau@iki.fi> [1]