JayThirtySeven/gosu — comment on commit a2976ebe3167916e5b2a63ed9995846e39ad61b5
File:  line 0
By Rylius:

/usr/local/bin/ruby: symbol lookup error: /usr/local/lib/ruby/gems/1.9.1/gems/gosu-0.7.39/lib/gosu.so: undefined symbol: XineramaQueryScreens

Gem compiles fine, libxinerama-dev is installed.
$ locate libXinerama.so
/usr/lib/i386-linux-gnu/libXinerama.so
/usr/lib/i386-linux-gnu/libXinerama.so.1
/usr/lib/i386-linux-gnu/libXinerama.so.1.0.0

It does work with setting LD_PRELOAD="/usr/lib/i386-linux-gnu/libXinerama.so" before launching the game.