From a1171f79f81cd924237570a456974b17c67c3ade Mon Sep 17 00:00:00 2001
From: Tommy Nguyen <4123478+tido64@users.noreply.github.com>
Date: Wed, 21 Feb 2024 10:09:53 -0800
Subject: [PATCH] fix(android): fix `ndkVersion` is unset when building from
 source (#43131)

Summary:
`ndkVersion` is unset when building from source using this guide: https://reactnative.dev/contributing/how-to-build-from-source

## Changelog:

[ANDROID] [FIXED] - Fix `ndkVersion` is unset when building from source

Pull Request resolved: https://github.com/facebook/react-native/pull/43131

Test Plan:
```
git clone https://github.com/microsoft/react-native-test-app.git
cd react-native-test-app
npm run set-react-version nightly
yarn

# Manually apply the patch in node_modules/react-native/ReactAndroid/build.gradle.kts
# Enable building from source
sed -i '' 's/#react.buildFromSource/react.buildFromSource/' example/android/gradle.properties

# Build
cd example/android
./gradlew assembleDebug
```

Reviewed By: christophpurrer

Differential Revision: D54006425

Pulled By: cortinico

fbshipit-source-id: 9ede64bc14af4cf609b7a4c12c5a1082bbc31f09
---
 packages/react-native/ReactAndroid/build.gradle.kts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/react-native/ReactAndroid/build.gradle.kts b/packages/react-native/ReactAndroid/build.gradle.kts
index 7e0640a0e50a66..17d75f688275e6 100644
--- a/packages/react-native/ReactAndroid/build.gradle.kts
+++ b/packages/react-native/ReactAndroid/build.gradle.kts
@@ -470,6 +470,8 @@ android {
   }
   if (rootProject.hasProperty("ndkVersion") && rootProject.properties["ndkVersion"] != null) {
     ndkVersion = rootProject.properties["ndkVersion"].toString()
+  } else {
+    ndkVersion = libs.versions.ndkVersion.get()
   }
 
   compileOptions {