krebs += pkgs.writeC lib.toC

krebs/4lib/default.nix

@@ -16,4 +16,10 @@ builtins // lib // rec {
   listset = import ./listset.nix { inherit lib; };
   shell = import ./shell.nix { inherit lib; };
   tree = import ./tree.nix { inherit lib; };
+
+  toC = x: {
+    list = "{ ${concatStringsSep ", " (map toC x)} }";
+    null = "NULL";
+    string = toJSON x; # close enough
+  }.${typeOf x};
 }

krebs/5pkgs/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ lib, pkgs, ... }:
 
 let
   inherit (pkgs) callPackage;
@@ -14,4 +14,15 @@ pkgs //
   hashPassword = callPackage ./hashPassword.nix {};
   nq = callPackage ./nq.nix {};
   posix-array = callPackage ./posix-array.nix {};
+
+  writeC = name: {}: src: pkgs.runCommand name {} ''
+    PATH=${lib.makeSearchPath "bin" (with pkgs; [
+      binutils
+      coreutils
+      gcc
+    ])}
+    in=${pkgs.writeText "${name}.c" src}
+    gcc -O -Wall -o $out $in
+    strip --strip-unneeded $out
+  '';
 }

tv/1systems/wu.nix

@@ -3,7 +3,7 @@
 with lib;
 
 let
-  tvpkgs = import ../5pkgs { inherit pkgs; };
+  tvpkgs = import ../5pkgs { inherit lib pkgs; };
 in
 
 {

tv/2configs/mail-client.nix

@@ -1,6 +1,6 @@
-{ pkgs, ... }:
+{ lib, pkgs, ... }:
 
-with import ../5pkgs { inherit pkgs; };
+with import ../5pkgs { inherit lib pkgs; };
 
 {
   environment.systemPackages = [

tv/5pkgs/default.nix

@@ -1,8 +1,8 @@
-{ pkgs, ... }:
+{ lib, pkgs, ... }:
 
 let
   inherit (pkgs) callPackage;
-  kpkgs = import ../../krebs/5pkgs { inherit pkgs; };
+  kpkgs = import ../../krebs/5pkgs { inherit lib pkgs; };
 in
 
 kpkgs // {