{ stdenv, buildPackages, hostPlatform, fetchurl, perl, buildLinux, ... } @ args: with stdenv.lib; buildLinux (args // rec { version = "4.15.12"; # modDirVersion needs to be x.y.z, will automatically add .0 if needed modDirVersion = concatStrings (intersperse "." (take 3 (splitString "." "${version}.0"))); # branchVersion needs to be x.y extraMeta.branch = concatStrings (intersperse "." (take 2 (splitString "." version))); src = fetchurl { url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz"; sha256 = "0j7l907m51y05cd1sqf3sn7vx4n6c07kn7q0ndnyg6wqb7h667h3"; }; } // (args.argsOverride or {}))