libvga is a dependency of SDL (1), not a direct dependency of ADOM. The next releases of ADOM will be using SDL2, so libvga shouldn't be a problem anymore.

The version of SDL you linked against was configured with libvga enabled, my SDL was not.
The game thinks it needs libvga because SDL thought it needed libvga when you linked it; once you link a binary static all libraries are direct dependencies of that binary.

SDL runs fine on my system using OpenGL and without libvga becuase libvga is a legacy library for pre-OpenGL hardware. I imagine it's configured in because you used the Ubuntu or Debian bin packages which just enable everything to support all hardware.

The problem is that even if I wanted to I can't install libvga on my system because it's not available for gentoo in a way thats compatible with its multi-lib support. I don't know how Ubunut's multi-lib support works, but clearly it's different.

Regardless, your 64bit builds don't need libvga in SDL as no modern hardware for 64bit uses svga.

So, what I'm saying is that if you want to support modern 64bit systems (which most are now) you'll need to build your own version of SDL and configure it without libvga (or svgalib, however it calls it) for your 64bit releases. Then you can build your game against that new SDL (with opengl, without libvga) for 64bit.

Cheers,
Kat

I must admit that I didn't know that. :)

Let's see how release 48 with the new SDL2 library works on Gentoo (I'm a big Gentoo fan myself, but I'm only using it on the ancardia.com server right now).