From 7151622d646968686546f1c4c80f7575c9b99176 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=A5=9E=E6=A5=BD=E5=9D=82=E3=81=BF=E3=81=9A=E3=81=8D?=
 <45122329+CokeMine@users.noreply.github.com>
Date: Tue, 1 Jun 2021 23:29:32 +0800
Subject: [PATCH] fix(build): cjs build failing due to `__VUE_PROD_DEVTOOLS__`
 defined (#1991) (#1992)

fix #1991

Co-authored-by: Kia King Ishii <kia.king.08@gmail.com>
---
 rollup.config.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/rollup.config.js b/rollup.config.js
index 1ff829389..30b9df0bb 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -27,6 +27,7 @@ function createEntries() {
 function createEntry(config) {
   const isGlobalBuild = config.format === 'iife'
   const isBundlerBuild = config.format !== 'iife' && !config.browser
+  const isBundlerESMBuild = config.format === 'es' && !config.browser
 
   const c = {
     external: ['vue'],
@@ -61,7 +62,9 @@ function createEntry(config) {
     __DEV__: isBundlerBuild
       ? `(process.env.NODE_ENV !== 'production')`
       : config.env !== 'production',
-    __VUE_PROD_DEVTOOLS__: isBundlerBuild ? '__VUE_PROD_DEVTOOLS__' : 'false'
+    __VUE_PROD_DEVTOOLS__: isBundlerESMBuild
+      ? '__VUE_PROD_DEVTOOLS__'
+      : 'false'
   }))
 
   if (config.transpile !== false) {