{stdenv , ... }: let in stdenv.mkDerivation { name = "read-helper"; src = ./.; # Use $CC as it allows for stdenv to reference the correct C compiler buildPhase = '' gcc -fno-stack-protector -D_FORTIFY_SOURCE=0 read-helper.c -o read-helper ''; installPhase = '' mkdir -p $out/bin cp read-helper $out/bin ''; }