From 0bd8f188aedc3f18664056398c2abeaaf104a32d Mon Sep 17 00:00:00 2001
From: Mike Bostock <mbostock@gmail.com>
Date: Mon, 10 Dec 2018 13:40:08 -0800
Subject: [PATCH] Update d3-require; fixes #77.

---
 package.json     | 2 +-
 rollup.config.js | 3 ++-
 yarn.lock        | 6 +++---
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/package.json b/package.json
index 7bac58fd..d71f7635 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "cjs": true
   },
   "dependencies": {
-    "d3-require": "^1.1.0",
+    "d3-require": "^1.2.0",
     "esm": "^3.0.5"
   },
   "devDependencies": {
diff --git a/rollup.config.js b/rollup.config.js
index 3bbdcd6e..d9f964bf 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -10,7 +10,8 @@ function config(output) {
       node(),
       terser({
         toplevel: output.format === "es",
-        output: {preamble: copyright}
+        output: {preamble: copyright},
+        mangle: {reserved: ["RequireError"]}
       })
     ],
     output
diff --git a/yarn.lock b/yarn.lock
index 4c06fbf8..d0a357f2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -255,9 +255,9 @@ cssstyle@^1.0.0:
   dependencies:
     cssom "0.3.x"
 
-d3-require@^1.1.0:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/d3-require/-/d3-require-1.1.4.tgz#f5b229aaab5586bfcd67383c78652147d3def72b"
+d3-require@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/d3-require/-/d3-require-1.2.0.tgz#a840fc88e4b7f3bc49dac91eb16615c1df20b42a"
 
 dashdash@^1.12.0:
   version "1.14.1"