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• Qt >= 4.8
• Ruby
• Perl
• liblastfm

You will also need depending on your chosen platform:-

We recommend that you use Homebrew to install most of the dependancies:

brew tap lastfm/lastfmdesktop
brew install qt kde-phonon
brew install --HEAD vlc
brew install phonon-vlc

We install kde-phonon becuase the Phonon distributed with Qt is quite old.

Installing phonon-vlc will remove the QuickTime phonon plugin and replace it with the VLC phonon plugin so that when we build the app we use .

You'll also need the Growl and libsparkle frameworks.

Get the latest Growl SDk from here http://code.google.com/p/growl/downloads/list

Get the latest Sparkle from here http://sparkle.andymatuschak.org/

Unzip both and put their frameworks in /Library/Frameworks/ so the build will find them.

We used to build using Cygwin, but now we prefer not to.

You should get Windows version of the tool chain. Here are some recommendations.

• Git: http://code.google.com/p/msysgit/downloads/list
• CMake: http://www.cmake.org/cmake/resources/software.html
• pkg-config: http://www.gtk.org/download/win32.php
• Ruby: http://rubyinstaller.org/
• Perl: http://www.perl.org/get.html
• Win Platform SDK:http://www.microsoft.com/en-us/download/details.aspx?id=8279
• KDE Support: http://windows.kde.org/ Install the automoc and dbus packages.

Install Qt binaries from either the Qt SDK or standalone binary package. You should be able to find everything here http://qt.nokia.com/downloads

You will also need the latest Windows SDK. We build using Visual Studio 2008.

We build the latest version of Phonon. This step is optional, if you're happy with the outdated one that ships with Qt.

You can clone Phonon from here git://anongit.kde.org/phonon

Follow their instructions to build it using cmake, etc. I found that CMake needed a little help wiht cmake-gui.

Create a pkg-config file for Phonon like this:

Name: Phonon
Description: Multimedia Library
Version: 4.6.0
Libs: -LC:/dev/Install/Phonon/lib C:/dev/Install/Phonon/lib/phonon.lib
Cflags: -IC:/dev/Install/Phonon/include

We use the VLC backend for phonon. This step is optional, if you are happy with the directx plugin that ships with Qt.

Download Latest VLC from http://www.videolan.org/vlc/download-windows.html

VLC is compiled with MinGW so we need to generate a .lib so that we can link to it with MSVC.

To do this you should follow the instructions here http://wiki.videolan.org/GenerateLibFromDll

• Copy the pkg-config files from 'INSTALL_DIR\VideoLAN\VLC\sdk\lib\pkgconfig' to your pkg-config search directory.

I found I also had to copy libvlc.dll and libvlccore.dll into lastfm-desktop/_bin

This is the Qt plugin that gets Phonon to use libvlc. Again, this is an optional.

You can clone phonon-vlc from here git://anongit.kde.org/phonon-vlc

Follow there instructions for building it. I found that CMake needed a little help wiht cmake-gui.

You should copy the resulting phonon_vlc.dll into lastfm-desktop/_bin/plugins/phonon_backend

This is the library we use to check for app updates. You should download the latest dll and headers form here http://winsparkle.org

This step should be optional really as most people will not want to add the update checking.

I found that I also needed to copy the dll into the lastfm-desktop/_bin folder. Create a pkg-config file for WinSparkle like this:

Name: sparkle
Description: Multimedia Library
Version: 0.3
Libs: -LC:/dev/Install/WinSparkle/Release -lWinSparkle
Cflags: -IC:/dev/Install/WinSparkle/include

• pkg-config
• taglib
• libsamplerate
• fftw3
• libmad

Possibly you'll have to play around to get a phonon that works with KDE4 and Qt. I can't help you there I'm afraid. An example Ubuntu installation would probably go:

sudo apt-get install qt4-dev pkg-config libtag libsamplerate libfftw3 libmad
qmake -r && make -j2 && make install

I wrote that from memory as I'm working on a Mac today. If it's wrong please write and correct me. KTHXBAI.

Ubuntu install deps line:

sudo apt-get install libsqlite3-dev libqt4-sql-sqlite

qmake -r
make

Note: use nmake on Windows

Note that if you installed Qt through homebrew it will default to a release build.

Apps are styled using stylesheets which are found in the source directory of the app. By default the executable path is checked for the css file on Windows and on OSX the bundle Resource directory is checked otherwise you'll need to tell the app where the stylesheet is, like this:

./Last.fm.exe -stylesheet path/to/Last.fm.css

We support developers trying to build the source on any platform.

Seeing as we don't provide many varieties of binary package on Linux, we also support non-developers building from source there. However within reason! Please check around the net a little first. Ask your friends. Demand help from people standing at bus-stops.

Maybe check the official forum: http://www.last.fm/forum/34905

If you find a bug in the software, please let us know about it.

Michael Coffeymichaelc@last.fm Desktop App Lead Developer, Last.fm