3) If you're playing on a Mac, maybe the following instructions (provided
   by atastypie) will help you:
   * Download Stone Soup 0.5.x Tiles binaries for OS X.
   * Extract to your Desktop.
   * Download Fink 0.9.0.
     (http://www.finkproject.org/download/index.php?phpLang=en)
   * Mount the Fink image.
   * Run the Fink installer from the image.
   * It will ask for your administrator password. Type it and hit Enter.
   * Start Terminal.
   * Type "sudo apt-get install libpng3 freetype2 sdl sdl-image".
   * It will ask for your administrator password. Type it and hit Enter.
   * Type "cd Desktop/ston" => Tab => Enter. Hitting Tab will auto-complete
     the folder name.
     (This is again assuming you extracted Crawl 0.5.x onto your Desktop.)
   * Type "./crawl_tiles".
   Edit: This all assumes you have developer tools / xcode installed off of
         your OSX cd like I do. If you don't, and you get through all this and
         it still doesn't work, install it. It will be in the Tools directory
         of your Leopard install disc. This shouldn't be a requirement to just
         run the game, though.
   Also, some players reported error message like the following:
      dyld: Library not loaded: /sw/lib/libpng12.0.dylib
      Referenced from:
      /PATH/stone_soup-0.5-tiles-osx/crawl_tiles
      Reason: image not found
      Trace/BPT trap
      logout
      [Process completed]

   ... to which atastypie (again!) replied:

   The missing PNG error occurs if you try and run the tiles version by
   double clicking on it. You actually need to run X11 -> open a terminal
   -> go to the crawl directory -> ./crawl_tiles

Terminal.app (which supports only 8 colours), you should follow the
Mac build instructions below.

Terminal.app (which supports only 8 colours), or you want a tiles
build, you should follow the Mac build instructions below.

* Crawl has been tested with Xcode 2.4 under OS X 10.4.7 on both PPC
  and Intel machines, but is likely to be buildable with earlier
  versions.

* Crawl has been tested to build under Xcode 3.2 on OS X 10.6.1, but
  is likely to be buildable with earlier versions.

* You need to get the appropriate frameworks for libpng, SDL, SDL_image
  and Freetype2 installed to /Library/Frameworks.
  - SDL and SDL_image frameworks can be downloaded from libsdl.org:
      http://www.libsdl.org/download-1.2.php
      http://www.libsdl.org/projects/SDL_image
  - libpng and Freetype2 need to be built from source to be compiled
    as frameworks. Let's start with libpng. Check out the source from
      git://git.uplinklabs.net/pub/scm/git/tycho/libpng.git
    and build it using the Xcode project in projects/xcode.
  - Once libpng finishes compiling, move the libpng.framework folder
    from projects/xcode/build/Release to /Library/Frameworks.
  - Now get Freetype2:
      git://git.uplinklabs.net/pub/scm/git/tycho/freetype.git
    and build it using the Xcode project in builds/mac/Xcode.
  - Move the compiled Freetype framework to /Library/Frameworks

  - You've now got the necessary dependencies installed and you can
    proceed to build Crawl.

  Universal binary suitable for play on all OS X 10.3.9 or newer

  Universal binary suitable for play on all OS X 10.4 or newer

  On Mac OS X, these are expected to be installed via fink in /sw.  On Linux,
  these can be installed via a package manager.  On Windows, they should be
  installed, compiled, and the headers and libs placed in a location that the
  compiler can find them via its default include and library paths.

  On Mac OS X, these are expected to be installed as frameworks to
  /Library/Frameworks.
  On Linux, these can be installed via a package manager.
  On Windows, they should be installed, compiled, and the headers and libs
  placed in a location that the compiler can find them via its default include
  and library paths.