diff --git a/README b/README
index 4373de0c6..d74564b61 100644
--- a/README
+++ b/README
@@ -1,6 +1,8 @@
 How to Build for Android
 ------------------------
 
-Just execute::
+Requirements: Android SDK 1.6, Android NDK 1.5
 
-    ant -f platform/android/build.xml package
+1. compile native code in 'native' directory
+2. edit 'local.properties' file
+3. run 'ant release'
diff --git a/build.xml b/obsolete/build.xml
similarity index 100%
rename from build.xml
rename to obsolete/build.xml
diff --git a/package_tool.sh b/package_tool.sh
index 6aedc464f..d47b2efbf 100755
--- a/package_tool.sh
+++ b/package_tool.sh
@@ -17,7 +17,7 @@ updateVersion() {
 	minor=`echo $version | cut -d . -f 2`
 	micro=`echo $version | cut -d . -f 3`
 	let intversion=10000*$major+100*$minor+$micro
-	sed "s/@INTVERSION@/$intversion/" platform/android/AndroidManifest.xml.pattern | sed "s/@VERSION@/$version/" > platform/android/AndroidManifest.xml
+	sed "s/@INTVERSION@/$intversion/" AndroidManifest.xml.pattern | sed "s/@VERSION@/$version/" > AndroidManifest.xml
 }
 
 buildSourceArchive() {