Android
Android uses android-apk as setting for the platform attribute, and a .jar file as library. You can refer to a .jar file that is located inside the Android SDK's platforms folder when you specify the name attribute, or you can specify a custom location for a library using libPath.
For an example, see the following codeblock:
<addExtraLibs platform="android-apk">
<library name="SomeDefaultLib.jar"/>
<!-- Library will be found in appropriate sdk/platforms/android-X folder,
where X is the current API level -->
<library name="MyCustomLib.jar"
libPath="C:/path_to_custom_libraries" />
<!-- a jar in a custom location -->
</addExtraLibs>