[BRLTTY] 5.6 configure warnings

[Brian Tew]

./configure --silent --prefix=/usr/local/brltty56
yields many warnings.
Do I need to wohry about any of these?
I only use command line so far, but it would be nice if I could operate in mwindows.

 configure: WARNING: polkit support not available configure: WARNING: Java compiler not found configure: WARNING: Java BrlAPI bindings not included configure: WARNING: Cannot find ocamlc. configure: WARNING: OCaml BrlAPI bindings not included configure: WARNING: Python developer environment not installed configure: WARNING: Cython compiler not found configure: WARNING: Python BrlAPI bindings not included configure: WARNING: Tcl configuration script not found: tclConfig.sh configure: WARNING: Tcl packages directory not found configure: WARNING: Tcl BrlAPI bindings not included configure: WARNING: xtst support not available configure: WARNING: louis support not available configure: WARNING: system service support not available on this platform configure: WARNING: Bluetooth I/O support not available on this platform configure: WARNING: Libbraille package not found: /usr /usr/local /usr/local/Libbraille /usr/local/libbraille /opt/Libbraille /opt/libbraille /mingw /mingw/Libbraille /mingw/libbraille configure: WARNING: eSpeak package not found: /usr /usr/local /usr/local/eSpeak /usr/local/espeak /opt/eSpeak /opt/espeak /mingw /mingw/eSpeak /mingw/espeak configure: WARNING: FestivalLite package not found: /usr /usr/local /usr/local/FestivalLite /usr/local/flite /opt/FestivalLite /opt/flite /mingw /mingw/FestivalLite /mingw/flite configure: WARNING: Mikropuhe package not found: /usr /usr/local /usr/local/Mikropuhe /usr/local/mikropuhe /opt/Mikropuhe /opt/mikropuhe /mingw /mingw/Mikropuhe /mingw/mikropuhe configure: WARNING: speech-dispatcher package not found: /usr /usr/local /usr/local/speech-dispatcher /usr/local/speechd /opt/speech-dispatcher /opt/speechd /mingw /mingw/speech-dispatcher /mingw/speechd configure: WARNING: Swift package not found: /usr /usr/local /usr/local/Swift /usr/local/swift /opt/Swift /opt/swift /mingw /mingw/Swift /mingw/swift configure: WARNING: Theta package not found: /usr /usr/local /usr/local/Theta /usr/local/theta /opt/Theta /opt/theta /mingw /mingw/Theta /mingw/theta configure: WARNING: ViaVoice package not found: /usr /usr/local /usr/local/ViaVoice /usr/local/viavoice /opt/ViaVoice /opt/viavoice /mingw /mingw/ViaVoice /mingw/viavoice configure: WARNING: cspi support not available configure: WARNING: atspi2 support not available ../../../Headers/get_curses.h:54:2: warning: #warning curses package either unspecified or unsupported [-Wcpp]  #warning curses package either unspecified or unsupported ../Headers/get_curses.h:54:2: warning: #warning curses package either unspecified or unsupported [-Wcpp]  #warning curses package either unspecified or unsupported ./xbrlapi.c:54:2: warning: #warning key press simulation not supported by this build - check that libxtst has been installed [-Wcpp]  #warning key press simulation not supported by this build - check that libxtst  ~$