setup-android-sdk.sh: Fix mac sdk download

scripts/setup-android-sdk.sh

@@ -10,12 +10,20 @@ if [ ! -d $ANDROID_HOME ]; then
 	mkdir -p $ANDROID_HOME
 	cd $ANDROID_HOME/..
 	rm -Rf `basename $ANDROID_HOME`
-	curl --fail --retry 3 -o android-sdk.tgz https://dl.google.com/android/android-sdk_r24.4.1-linux.tgz
 
-	rm -Rf android-sdk-linux
-	tar xzf android-sdk.tgz
-	mv android-sdk-linux `basename $ANDROID_HOME`
-	rm android-sdk.tgz
+        if [ `uname` = Darwin ]; then
+                curl --fail --retry 3 -o android-sdk.zip https://dl.google.com/android/android-sdk_r24.4.1-macosx.zip
+                rm -Rf android-sdk-macosx
+                unzip -q android-sdk.zip
+                mv android-sdk-macosx `basename $ANDROID_HOME`
+                rm android-sdk.zip
+        else
+                curl --fail --retry 3 -o android-sdk.tgz https://dl.google.com/android/android-sdk_r24.4.1-linux.tgz
+                rm -Rf android-sdk-linux
+                tar xzf android-sdk.tgz
+                mv android-sdk-linux `basename $ANDROID_HOME`
+                rm android-sdk.tgz
+        fi
 fi
 
 if [ ! -d $NDK ]; then