Fix finding the standard library for pnpm some more

Author: cknitt

compiler/ext/config.ml

@@ -12,12 +12,24 @@ let standard_library =
     |> List.rev
   with
   (* 1. Packages installed via pnpm
-     - bin:    node_modules/.pnpm/@rescript+darwin-arm64@12.0.0-alpha.13/node_modules/@rescript/darwin-arm64/bin
-     - stdlib: node_modules/rescript/lib/ocaml (symlink)
+     - bin:    node_modules/.pnpm/@rescript+darwin-arm64@12.0.0-alpha.15/node_modules/@rescript/darwin-arm64/bin
+     - stdlib: node_modules/.pnpm/rescript@12.0.0-alpha.15/node_modules/rescript/lib/ocaml
   *)
-  | "bin" :: _platform :: "@rescript" :: "node_modules" :: _package :: ".pnpm"
-    :: "node_modules" :: rest ->
-    build_path rest ["node_modules"; "rescript"; "lib"; "ocaml"]
+  | "bin" :: _platform :: "@rescript" :: "node_modules" :: binPackage :: ".pnpm"
+    :: "node_modules" :: rest -> (
+    match binPackage |> String.split_on_char '@' with
+    | [""; _packageName; version] ->
+      build_path rest
+        [
+          "node_modules";
+          ".pnpm";
+          "rescript@" ^ version;
+          "node_modules";
+          "rescript";
+          "lib";
+          "ocaml";
+        ]
+    | _ -> "")
   (* 2. Packages installed via npm
      - bin:    node_modules/@rescript/{platform}/bin
      - stdlib: node_modules/rescript/lib/ocaml