I’m trying to revive an old project that I’ve neglected. When I first started the project, I installed “sbcl_2_0_2”, “SDL2”, “libGL”, and “libGL_driver”, and exported LD_LIBRARY_PATH=“$env/lib” and LIBGL_DRIVERS_PATH=“$env/lib/dri”. At the time, it was on a Debian system, and thus there was no “system” support for this – but I was able to get it to work at the time!
Since then, I have moved to a computer with NixOS installed, but I still want to keep the dependencies “tracked” in a “shell.nix” file; I have updated SBCL to “sbcl_2_3_9”, I cannot get it to find the libraries. When I try to install “libGL_driver”, I find it’s no longer available, and without it, I get the following errors (using LIBGL_DEBUG=“verbose”):
This is SBCL 2.3.9.nixos, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.
SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses. See the CREDITS and COPYING files in the
distribution for more information.
To load "sdl2":
Load 1 ASDF system:
sdl2
; Loading "sdl2"
..................
* (load "first-window")
hello, world!
T
* (first-window)
Using SDL2 Library Version: 2.0.20
So far, so good!
libGL: Can't open configuration file /etc/drirc: No such file or directory.
libGL: Can't open configuration file /home/odin/alphy/.drirc: No such file or directory.
libGL: using driver amdgpu for 15
libGL: Can't open configuration file /etc/drirc: No such file or directory.
libGL: Can't open configuration file /home/odin/alphy/.drirc: No such file or directory.
libGL: pci id for fd 15: 1002:1636, driver radeonsi
libGL: MESA-LOADER: failed to open /nix/store/208frkc81rdw5s0jcdp5rfgkiq0mlmf5-hamilton-iv-epsilon-env/lib/dri/radeonsi_dri.so: /nix/store/208frkc81rdw5s0jcdp5rfgkiq0mlmf5-hamilton-iv-epsilon-env/lib/dri/radeonsi_dri.so: cannot open shared object file: No such file or directory
libGL error: MESA-LOADER: failed to open radeonsi: /nix/store/208frkc81rdw5s0jcdp5rfgkiq0mlmf5-hamilton-iv-epsilon-env/lib/dri/radeonsi_dri.so: cannot open shared object file: No such file or directory (search paths /nix/store/208frkc81rdw5s0jcdp5rfgkiq0mlmf5-hamilton-iv-epsilon-env/lib/dri, suffix _dri)
libGL error: failed to load driver: radeonsi
libGL: MESA-LOADER: failed to open /nix/store/208frkc81rdw5s0jcdp5rfgkiq0mlmf5-hamilton-iv-epsilon-env/lib/dri/swrast_dri.so: /nix/store/208frkc81rdw5s0jcdp5rfgkiq0mlmf5-hamilton-iv-epsilon-env/lib/dri/swrast_dri.so: cannot open shared object file: No such file or directory
libGL error: MESA-LOADER: failed to open swrast: /nix/store/208frkc81rdw5s0jcdp5rfgkiq0mlmf5-hamilton-iv-epsilon-env/lib/dri/swrast_dri.so: cannot open shared object file: No such file or directory (search paths /nix/store/208frkc81rdw5s0jcdp5rfgkiq0mlmf5-hamilton-iv-epsilon-env/lib/dri, suffix _dri)
libGL error: failed to load driver: swrast
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 150 (GLX)
Minor opcode of failed request: 3 (X_GLXCreateContext)
Value in failed request: 0x0
Serial number of failed request: 112
Current serial number in output stream: 113
I have seen a tutorial describing how to use “configuration.nix” to install these libraries, but besides the fact that this goes counter to the spirit of “shell.nix”, when I try to use “configuration.nix” to install these libraries, they are unavailable to the shell environment! (As they should be, I might add! 
)
How do I install these drivers? Ideally, I’d like to install them by “shell.nix”, but if that’s not possible, I may need help understanding how to access the system versions of these drivers from a “shell.nix” shell.