nix build: + xo.tokenizer2

pkgs/xo-indentlog.nix

@@ -10,6 +10,7 @@
 
   buildDocs ? false,
   buildExamples ? false,
+  doCheck ? true,
 } :
 
 stdenv.mkDerivation (finalattrs:
@@ -25,8 +26,7 @@ stdenv.mkDerivation (finalattrs:
 
     inherit buildDocs;
     inherit buildExamples;
-
-    doCheck = true;
+    inherit doCheck;
 
     postBuild = lib.optionalString buildDocs ''
       cmake --build . -- docs

pkgs/xo-tokenizer2.nix

@@ -0,0 +1,34 @@
+{
+  # nixpkgs dependencies
+  lib, stdenv, cmake, catch2, replxx,
+
+  xo-arena,
+  xo-indentlog,
+  xo-cmake,
+
+  buildExamples ? true,
+  doCheck ? true,
+} :
+
+stdenv.mkDerivation (finalattrs:
+  {
+    name = "xo-tokenizer2";
+
+    src = ../xo-tokenizer2;
+
+    cmakeFlags = ["-DCMAKE_MODULE_PATH=${xo-cmake}/share/cmake"]
+                 ++ lib.optionals doCheck ["-DENABLE_TESTING=1"]
+                 ++ lib.optionals buildExamples ["-DXO_ENABLE_EXAMPLES=on"];
+
+    inherit buildExamples;
+    inherit doCheck;
+
+    nativeBuildInputs = [
+      cmake catch2 replxx
+      xo-cmake
+    ];
+    propagatedBuildInputs = [
+      xo-arena
+      xo-indentlog
+    ];
+  })