eix libsdl
[I] media-libs/libsdl
     Available versions:
        (0)     1.2.14-r6 1.2.15-r2 ~1.2.15-r3
        (2)     ~2.0.0_pre6995[2] ~2.0.0_pre7013[2] ~2.0.0_pre7022[2] (~)2.0.0_pre7024[1] ~2.0.0_pre7046[2] **2.0.0_pre7046-r1[2] **2.0.0_pre9999[2]
        {{3dnow X aalib abi_x86_32 abi_x86_64 alsa altivec aqua +asm +audio custom-cflags dga directfb fbcon fusionsound ggi gles +joystick libcaca mmx nas opengl oss ps3 pulseaudio sse sse2 static-libs svga +threads tslib +video +xcursor xinerama +xinput xrandr xscreensaver xv xvidmode}}
     Installed versions:  1.2.15-r2(02:21:45 PM 12/29/2012)(X aalib alsa audio custom-cflags dga ggi joystick libcaca multilib_abi_amd64 multilib_abi_x86 opengl oss pulseaudio video xv -abiwrapper -directfb -fbcon -nas -ps3 -static-libs -svga -tslib -xinerama) 2.0.0_pre7024(2)[1](11:23:58 PM 04/22/2013)(X alsa asm mmx multilib_abi_amd64 multilib_abi_x86 opengl oss pulseaudio sse sse2 threads video -3dnow -abi_x86_32 -abi_x86_64 -abiwrapper -altivec -aqua -fusionsound -gles -nas -static-libs -tslib -xinerama -xscreensaver)
     Homepage:            http://www.libsdl.org/
     Description:         Simple Direct Media Layer

[1] "gamerlay" /var/lib/layman/gamerlay
[2] "steam-overlay" /var/lib/layman/steam