add anoia.net.constants for SOCK_{STREAM,DGRAM} etc

we use an ugly bit of C preprocessor to get the values from
header files, because certain constants are different on MIPS
than on other architectures

pkgs/anoia/default.nix

@@ -4,13 +4,14 @@
 , linotify
 , lua
 , lualinux
+, cpio
 }:
 let pname =  "anoia";
 in stdenv.mkDerivation {
   inherit pname;
   version = "0.1";
   src = ./.;
-  nativeBuildInputs = [ fennel ];
+  nativeBuildInputs = [ fennel cpio ];
   buildInputs = with lua.pkgs; [ linotify lualinux ];
   outputs = [ "out" "dev" ];
 
@@ -18,7 +19,7 @@ in stdenv.mkDerivation {
 
   installPhase = ''
     mkdir -p "$out/share/lua/${lua.luaversion}/${pname}"
-    cp *.lua "$out/share/lua/${lua.luaversion}/${pname}"
+    find . -name \*.lua | cpio -p -d "$out/share/lua/${lua.luaversion}/${pname}"
 
     mkdir -p "$dev/share/lua/${lua.luaversion}/${pname}"
     cp assert.fnl "$dev/share/lua/${lua.luaversion}/${pname}"