From 6cabf9af8c5ca5f85762b1006a392793adb246a7 Mon Sep 17 00:00:00 2001
From: Hong Chen <hong.chen1@huawei.com>
Date: Fri, 9 Mar 2018 15:54:12 -0800
Subject: [PATCH] aarch64 supported; fresh installation created engine folder

---
 .../main/java/net/lrstudios/android/pachi/PachiEngine.java    | 4 ++++
 elygo-lib/build.gradle                                        | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/net/lrstudios/android/pachi/PachiEngine.java b/app/src/main/java/net/lrstudios/android/pachi/PachiEngine.java
index 32e023a..ed471b1 100644
--- a/app/src/main/java/net/lrstudios/android/pachi/PachiEngine.java
+++ b/app/src/main/java/net/lrstudios/android/pachi/PachiEngine.java
@@ -65,6 +65,10 @@ protected String[] getProcessArgs() {
     @Override
     protected File getEngineFile() {
         File dir = new File(_context.getDir());
+        if (!dir.exists()){
+            // todo : handle failure
+            dir.mkdirs();
+        }
 
         File file = new File(dir, "pachi");
 
diff --git a/elygo-lib/build.gradle b/elygo-lib/build.gradle
index da71ab4..89c90a2 100644
--- a/elygo-lib/build.gradle
+++ b/elygo-lib/build.gradle
@@ -5,7 +5,7 @@ android {
     buildToolsVersion '26.0.2'
 
     defaultConfig {
-        minSdkVersion 15
+        minSdkVersion 21
         targetSdkVersion 24
     }
 }