Target Android API 15 in ndk-build
diff --git a/jni/Application.mk b/jni/Application.mk
index 2c497f5..3667da3 100644
--- a/jni/Application.mk
+++ b/jni/Application.mk
@@ -1,4 +1,4 @@
-APP_PLATFORM := android-21
+APP_PLATFORM := android-15
 APP_PIE := true
 APP_STL := c++_static
 APP_ABI := armeabi armeabi-v7a arm64-v8a x86 x86_64