# dfu-programmer doesn't have darwin on it's list of supported platforms { pkgs ? import <nixpkgs> { config = { allowUnsupportedSystem = true; }; } , avr ? true, arm ? true, teensy ? true }: with pkgs; let avrbinutils = pkgsCross.avr.buildPackages.binutils; avrlibc = pkgsCross.avr.libcCross; gcc-arm-embedded = (import (builtins.fetchTarball { url = "https://github.com/NixOS/nixpkgs-channels/archive/87f146a41c463a64c93022b11cf19716b3a22037.tar.gz"; sha256 = "0rk8haf19plw6vyvq0am99rik0hrrysknjw0f2vs7985awngy3q2"; }) {}).gcc-arm-embedded; avr_incflags = [ "-isystem ${avrlibc}/avr/include" "-B${avrlibc}/avr/lib/avr5" "-L${avrlibc}/avr/lib/avr5" "-B${avrlibc}/avr/lib/avr35" "-L${avrlibc}/avr/lib/avr35" "-B${avrlibc}/avr/lib/avr51" "-L${avrlibc}/avr/lib/avr51" ]; avrgcc = pkgsCross.avr.buildPackages.gcc.overrideAttrs (oldAttrs: rec { name = "avr-gcc-8.1.0"; src = fetchurl { url = "mirror://gcc/releases/gcc-8.1.0/gcc-8.1.0.tar.xz"; sha256 = "0lxil8x0jjx7zbf90cy1rli650akaa6hpk8wk8s62vk2jbwnc60x"; }; }); in stdenv.mkDerivation { name = "qmk-firmware"; buildInputs = [ dfu-programmer dfu-util diffutils git python3 ] ++ lib.optional avr [ avrbinutils avrgcc avrlibc avrdude ] ++ lib.optional arm [ gcc-arm-embedded ] ++ lib.optional teensy [ teensy-loader-cli ]; CFLAGS = lib.optional avr avr_incflags; ASFLAGS = lib.optional avr avr_incflags; }