[Cin] Slackware 14.2 64-bit works too

[Andrew Randrianasulu]

..after installing python3 (latest Cin-GG uses it for somescript during build 
process).

Default optimizations ("-O2, -fPIC") resulted in 22 fps playback with color3way 
effect enabled over 1280x720 (RGBA-8 color format in project - default) video.

Upgrading optimizations to "-O3 -ffast-math -march=native -mtune=native -fPIC" 
resulted in 30 fps playback!

Switching video output to OpenGL resulted in less fps. At most 64-bit Cin-GG can 
play two 1280x720 h264 MOV videos one on top of another, where one video with 
color3way effect and another - 50% transparent. 22 fps :}

I'm still not sure if resulted Cin-GG compilation actually correct 
(mathematically-speaking). You can compile 'normal' and 'optimized' version and 
just swap some plugins, even one-by one and see if they still work correctly?