How to depend on SDL2 (libGL error)

[pmiddend]

Issue description

I hope opening an issue for this is appropriate. I'm using pysdl2 (meaning I have pysdl2 in my propagatedBuildInputs), which depends on SDL2, of course. Initialization of SDL2 fails because it cannot find libGL.so.1.
Looking at SDL2's source code, I see that it tries to dlopen either "libGL.so.1" (hard-coded) or whatever is inside SDL_OPENGL_LIBRARY. To properly package my application, am I to create a wrapper script for my application that sets this environment variable? Or what's the recommended approach when depending on libGL? I'm aware of PR 37369 (glvnd), but I'm not sure how to react to it.

[orivej]

Are you on non-NixOS Linux?

[pmiddend]

Nope, I'm on NixOS.

[orivej]

Then your LD_LIBRARY_PATH environment variable should contain /run/opengl-driver/lib:/run/opengl-driver-32/lib with libGL.so.1 in both of them. Is that so?

[pmiddend]

No, and it shouldn't contain that, see here.

My LD_LIBRARY_PATH looks like that, but it doesn't contain libGL.so.1.

[orivej]

Oops, I was not up to date on #37369. @abbradar, could you help?

[gebner]

Since #37369, the libGL.so libraries are no longer in /run/opengl-driver/lib/libGL.so, they are now in ${libGL}/lib/libGL.so.

[orivej]

SDL2 was not properly adapted for #37369, I'll fix it.