From 3d9e44db1960a18a5ce39fd8ed9e68be94cea77d Mon Sep 17 00:00:00 2001
From: "Yang, Bo" <pop.atry@gmail.com>
Date: Mon, 9 Jan 2023 07:29:28 -0800
Subject: [PATCH] Update ScaladocFeatures.scala

---
 .../sbtBestPractice/scalacOptions/ScaladocFeatures.scala | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/scalac-options/src/main/scala/com/thoughtworks/sbtBestPractice/scalacOptions/ScaladocFeatures.scala b/scalac-options/src/main/scala/com/thoughtworks/sbtBestPractice/scalacOptions/ScaladocFeatures.scala
index cc4ada6..4469794 100644
--- a/scalac-options/src/main/scala/com/thoughtworks/sbtBestPractice/scalacOptions/ScaladocFeatures.scala
+++ b/scalac-options/src/main/scala/com/thoughtworks/sbtBestPractice/scalacOptions/ScaladocFeatures.scala
@@ -14,7 +14,14 @@ object ScaladocFeatures extends AutoPlugin {
   override def trigger = allRequirements
 
   override val projectSettings = Seq(
-    Compile / doc / scalacOptions ++= Seq("-doc-root-content", (baseDirectory.value / "README.md").toString()),
+    Compile / doc / scalacOptions ++= {
+      if (scalaBinaryVersion.value == 3) {
+        // Scaladoc 3 supports Markdown
+        Seq("-doc-root-content", (baseDirectory.value / "README.md").toString())
+      } else {
+        Seq.empty
+      }
+    },
     scalacOptions in Compile in doc += "-groups",
     scalacOptions in Compile in doc += "-diagrams",
     scalacOptions in Compile in doc += "-implicits",