libkookie: build-support: add raku package builder

infra/libkookie/nixpkgs/unstable/pkgs/build-support/raku/default.nix

@@ -0,0 +1,39 @@
+{ stdenv
+, lib
+, makeWrapper
+, rakudo
+}:
+
+{ pname
+, version
+, src
+, buildInputs ? []
+, nativeBuildInputs ? []
+, rakuPackages ? []
+}:
+
+let
+  pname' = "raku-${rakudo.version}-${pname}";
+  rakuPath = lib.concatMapStrings (p: "{p}/lib/perl6/site_perl/${p.pname}-${p.version},") rakuPackages;
+in
+stdenv.mkDerivation {
+  pname = pname';
+  inherit src version;
+
+  nativeBuildInputs = [ makeWrapper ] ++ nativeBuildInputs;
+  buildInputs = [ rakudo ] ++ buildInputs;
+
+  dontBuild = true;
+  doCheck = true;
+
+  installPhase = ''
+    mkdir -p $out/lib/perl6/site_perl/
+    cp -r bin/ $out/bin
+    
+    for bin in $out/bin/*; do
+      wrapProgram $bin --set RAKUDOLIB ${rakuPath}$out/lib/perl6/site_perl/${pname}-${version}
+    done
+
+    cp -r lib/ $out/lib/perl6/site_perl/${pname}-${version}
+  '';
+}