Copied verbatim from https://github.com/NixOS/nixpkgs/tree/nixos-21.05/pkgs/development/compilers/llvm/ + default.nix file.

Simon Renblad 586ade8b2c LLVM 11 nixpkgs overlay		2024-05-21 17:04:14 +08:00
llvm	LLVM 11 nixpkgs overlay	2024-05-21 17:04:14 +08:00
default.nix	LLVM 11 nixpkgs overlay	2024-05-21 17:04:14 +08:00