1 files changed, 9 insertions, 1 deletions
diff --git a/rollup.config.js b/rollup.config.js
index 299bdad92..3dbe29260 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -24,6 +24,12 @@ const tsconfigOverride = {
   }
 };
 
+// this is a preamble for the `globals.d.ts` file to allow it to be the default
+// lib for deno.
+const libPreamble = `/// <reference no-default-lib="true"/>
+/// <reference lib="esnext" />
+`;
+
 // this is a rollup plugin which will look for imports ending with `!string` and resolve
 // them with a module that will inline the contents of the file as a string.  Needed to
 // support `js/assets.ts`.
@@ -62,7 +68,9 @@ function strings({ include, exclude } = {}) {
     transform(code, id) {
       if (filter(id)) {
         return {
-          code: `export default ${JSON.stringify(code)};`,
+          code: `export default ${JSON.stringify(
+            id.endsWith("globals.d.ts") ? libPreamble + code : code
+          )};`,
           map: { mappings: "" }
         };
       }