Make an app bundle also when GTK is used on Mac

[Mojca Miklavec]

Users of MacPorts asked for a bundled app of FileZilla (FileZilla.app) in addition to command-line binaries also when wxGTK is used.

There is currently

  # Create application bundle on OS X
  if echo $WX_CPPFLAGS | grep __WXMAC__; then
    macappbundle="yes"
  else
    macappbundle="no"
  fi

but this doesn't build the bundle when wxGTK is used.

I'm aware that this is a slightly weird request (most users would probably use Cocoa anyway), but in case that it is easy enough for you to add an option to the building scripts to make a bundle also when GTK is used, we would be grateful.

I can help with testing. (It would probably make most sense if making an app would be a configure-time option or a make target – even better as that wouldn't require reconfiguring everything.)

Otherwise assembling the bundle manually takes a bit of effort.