After trying $ANDROID_HOME/ndk-bundle, we also try $ANDROID_NDK_HOME. ANDROID_NDK_HOME is advised in this NDK sample code wiki: https://github.com/googlesamples/android-ndk/wiki Mentioned in the Bazel buildsystem Android app tutorial: https://docs.bazel.build/versions/master/tutorial/android-app.html On Ubuntu, the google-android-ndk-installer leaves the NDK in /usr/lib/android-ndk, and it seems to be up to the user to set ANDROID_NDK_HOME. On Arch Linux, the android-ndk package installs the NDK into /opt/android-ndk and sets ANDROID_NDK_HOME to there using an /etc/profile.d/file Fixes golang/go#31461 Change-Id: I9f7f7e24b19e0047419f9725b67bd6daf2b1d328 Reviewed-on: https://go-review.googlesource.com/c/mobile/+/171938 Run-TryBot: Elias Naur <mail@eliasnaur.com> Reviewed-by: Elias Naur <mail@eliasnaur.com>