[solved] Gosu does not build on Ubuntu with documented dependencies

[petervandenabeele]

With the documented dependencies of version 1.0.3. Gosu does not build on Ubuntu 10.04.

The error message is:

Installing gosu (0.7.41) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin/ruby extconf.rb 
The Gosu gem requires some libraries to be installed system-wide.
See the following site for a list:
https://github.com/jlnr/gosu/wiki/Getting-Started-on-Linux
...
WindowX.cpp: In function ‘void Gosu::screenMetrics(int*, int*, int*, int*)’:
WindowX.cpp:46: error: ‘XineramaScreenInfo’ was not declared in this scope
WindowX.cpp:46: error: ‘screen_info’ was not declared in this scope
WindowX.cpp:46: error: ‘XineramaQueryScreens’ was not declared in this scope
make: *** [WindowX.o] Error 1
...

Based on the list in https://github.com/jlnr/gosu/wiki/Getting-Started-on-Linux , I executed this command:

...
The following NEW packages will be installed:
  freeglut3-dev libmikmod2 libmikmod2-dev libsdl-mixer1.2 libsdl-mixer1.2-dev libsmpeg-dev libsmpeg0 libxinerama-dev
  x11proto-xinerama-dev
...

Once this was executed, bundle install succeeded with

...
Installing gosu (0.7.41) with native extensions
...

I will make a pull request for a short note in the documentation.

[petervandenabeele]

Turns out that the additional dependency is limited to

sudo apt-get install libxinerama-dev

I adjusted the README for this in pull request https://github.com/hybridgroup/kidsruby/pull/36

[phlipper]

I have merged pull request #36. Thanks for the update.