Allow React automatic runtime to be enforced with an option

vercel · Nov 5, 2020 · a431804 · a431804
1 parent 118ab79
commit a431804
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/packages/next/build/babel/preset.ts b/packages/next/build/babel/preset.ts
@@ -65,9 +65,9 @@ module.exports = (
   const supportsESM = api.caller(supportsStaticESM)
   const isServer = api.caller((caller: any) => !!caller && caller.isServer)
   const isModern = api.caller((caller: any) => !!caller && caller.isModern)
-  const hasJsxRuntime = Boolean(
-    api.caller((caller: any) => !!caller && caller.hasJsxRuntime)
-  )
+  const hasJsxRuntime =
+    options['preset-react']?.runtime === 'automatic' ||
+    Boolean(api.caller((caller: any) => !!caller && caller.hasJsxRuntime))
 
   const isLaxModern =
     isModern ||