I am trying to use the Spotify gem on Windows, but the gem doesn't provide libspotify's windows binaries.

Hi,
I'm running into a bit of a problem trying to get libspotify and hallon working on a Raspberry Pi (a small ARM-based computer board). The gem installs just fine, but running a simple program (like the examples provided in the Hallon readme) segfault.

Running this example:

#!/usr/bin/ruby -w

require 'rubygems'
require 'bundler'

require 'hallon'
require 'hallon-openal'

session = Hallon::Session.initialize IO.read('./spotify_appkey.key')
session.login!('secret', 'secret') #obviously I had real credentials here

track = Hallon::Track.new("spotify:track:1ZPsdTkzhDeHjA5c2Rnt2I")
track.load

player = Hallon::Player.new(Hallon::OpenAL)
player.play!(track)

Yields this error:

pi@raspberrypi ~/spot $ ./spot.rb 
/usr/lib/ruby/1.9.1/rubygems/psych_tree.rb:31: warning: method redefined; discarding old visit_String
/usr/lib/ruby/1.9.1/rubygems/psych_tree.rb:4: warning: previous definition of visit_String was here
/usr/lib/ruby/1.9.1/rubygems/psych_tree.rb:39: warning: method redefined; discarding old register
/usr/lib/ruby/1.9.1/rubygems/psych_tree.rb:12: warning: previous definition of register was here
/usr/lib/ruby/1.9.1/rubygems/psych_tree.rb:43: warning: method redefined; discarding old format_time
/usr/lib/ruby/1.9.1/rubygems/psych_tree.rb:16: warning: previous definition of format_time was here
/usr/lib/ruby/1.9.1/rubygems/syck_hack.rb:115: warning: method redefined; discarding old to_s
/usr/lib/ruby/1.9.1/rubygems/syck_hack.rb:44: warning: previous definition of to_s was here
/var/lib/gems/1.9.1/gems/hallon-0.18.1/lib/hallon/session.rb:49: warning: instance variable @__instance__ not initialized
/var/lib/gems/1.9.1/gems/spotify-12.3.0/lib/spotify.rb:99: [BUG] Segmentation fault
ruby 1.9.3p194 (2012-04-20 revision 35410) [arm-linux-eabi]

-- Control frame information -----------------------------------------------
c:0022 p:---- s:0074 b:0074 l:000073 d:000073 CFUNC  :session_process_events
c:0021 p:0020 s:0069 b:0069 l:000063 d:000068 BLOCK  /var/lib/gems/1.9.1/gems/spotify-12.3.0/lib/spotify.rb:99
c:0020 p:0019 s:0067 b:0067 l:000066 d:000066 METHOD /usr/lib/ruby/1.9.1/monitor.rb:211
c:0019 p:0013 s:0064 b:0064 l:000063 d:000063 METHOD /var/lib/gems/1.9.1/gems/spotify-12.3.0/lib/spotify.rb:98
c:0018 p:---- s:0058 b:0058 l:000057 d:000057 FINISH
c:0017 p:0025 s:0056 b:0056 l:000044 d:000055 BLOCK  /var/lib/gems/1.9.1/gems/hallon-0.18.1/lib/hallon/session.rb:168
c:0016 p:---- s:0053 b:0053 SEGV received in SEGV handler
Aborted

If it helps, this is on a Raspberry Pi board running "Soft-Float Raspbian Wheezy". I'm running Ruby ruby 1.9.3p194. I installed the libspotify gem, but after I encountered this issue I also compiled C libspotify by hand following your guide. There was no difference (although your Ruby libspotify might favor it's own binary libspotify over the one I compiled – I did not dive into the source to check this).

Do you have any idea what's going on or hints as to where I might look to get this working?

Gem.platforms.map(&:to_s) # => ["ruby", "universal-java-1.6"]`

arch becomes universal, OS becomes java. universal-darwin won’t match this platform, so ruby-specific version is installed instead.

Unfortunately, rubygems does not support ARM in any way.

• arm-linux platform won’t install on raspberry pi, since it does not match the platform (armv6t) exactly.

  pi@raspberrypi:pi$ gem install platform-tests -v 1.0.0
  ERROR:  Could not find a valid gem 'platform-tests' (= 1.0.0), here is why:
      Found platform-tests (1.0.0), but was for platforms i686-linux ,arm-linux ,x86_64-linux
  

• armv6t-linux platform is too specific; letters may change, version may change, or neither of them might be present. There are too many variations.

• universal-linux will install on raspberry pi, but also on all 32-bit and 64-bit linuxes, forcing us to include the distribution for 32bit, 64bit, and arm in the same gem (whereas currently we have 32bit and 64bit separate).

The pure-ruby gem works for now, so ARM users can install libspotify manually, meaning there is no immediate need. Just convenient.

See Burgestrand/spotify#27. Sometimes host_cpu does not contain the version, for example on some release of raspberry pi (raspbian?), host_cpu will only return arm, and not armv5hf or similar.

Hi there,

The install of libspotify is failing on Windows Server 2008 R2 (64-bit/SP1).

Here's the powershell output:

$> gem install libspotify
Binary libspotify gem could not be installed. You will need to install libspotify separately.
If you are on ARM (e.g. Raspberry PI), you might want to install the gem with explicit --platform:
$> gem install libspotify --platform arm-linux
Successfully installed libspotify-12.1.51.4
Parsing documentation for libspotify-12.1.51.4
Installing ri documentation for libspotify-12.1.51.4
Done installing documentation for libspotify after 0 seconds
1 gem installed

Thanks!

The gem allows you to install it as a binary for supported platforms, or an empty shell for non-supported platforms. It would be useful if the gem could warn after installation if installing the empty-shell one on an unsupported platform.