Update availability of platforms in configure help.

configure.ac

@@ -38,9 +38,9 @@ use_asio=""
 
 # configure flags
 AC_ARG_ENABLE(debug, [AS_HELP_STRING([--enable-debug],[enable various debug output])])
-AC_ARG_WITH(jack, [AS_HELP_STRING([--with-jack], [choose JACK server support (mac and linux only)])])
+AC_ARG_WITH(jack, [AS_HELP_STRING([--with-jack], [choose JACK server support])])
 AC_ARG_WITH(alsa, [AS_HELP_STRING([--with-alsa], [choose native ALSA API support (linux only)])])
-AC_ARG_WITH(pulse, [AS_HELP_STRING([--with-pulse], [choose PulseAudio API support (linux only)])])
+AC_ARG_WITH(pulse, [AS_HELP_STRING([--with-pulse], [choose PulseAudio API support (unixes)])])
 AC_ARG_WITH(oss, [AS_HELP_STRING([--with-oss], [choose OSS API support (unixes)])])
 AC_ARG_WITH(core, [AS_HELP_STRING([--with-core], [choose CoreAudio API support (mac only)])])
 AC_ARG_WITH(asio, [AS_HELP_STRING([--with-asio], [choose ASIO API support (win32 only)])])