title: Add library path in Android.mk - google-play-services_lib
body: <p>I use google-play-services_lib library for one of my projects. Everything builds beautifully in eclipse. Now I want to write an Android.mk file to build my project automatically.</p>
  
  <p>Following the instruction <a href="https://stackoverflow.com/questions/6475944/how-to-mention-path-of-libraries-in-android-mk-file-or-application-mk-file">here</a> , I have added <code>LOCAL_LDLIBS</code> to Android.mk, by putting <code>google-play-services_lib</code> library project to the libs folder of my project,  but it's not working.</p>
  
  <pre><code>LOCAL_PATH:= $(call my-dir)
  include $(CLEAR_VARS)
  
  LOCAL_SRC_FILES := $(call all-java-files-under, src)
  
  LOCAL_PACKAGE_NAME := GoogleReviews
  
  LOCAL_LDLIBS := -L/libs/google-play-services_lib
  
  include $(BUILD_PACKAGE)
  
  include $(CLEAR_VARS)
  
  include $(BUILD_MULTI_PREBUILT)
  </code></pre>
  
  <p>Since, the library is not detected correctly from Android.mk, following exceptions I get during compilation, which refer to these missing classes in the <code>google-play-services_lib</code> library.</p>
  
  <pre><code>packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:36: package com.google.android.gms.auth does not exist
  import com.google.android.gms.auth.GoogleAuthUtil;
                                ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:37: package com.google.android.gms.common does not exist
  import com.google.android.gms.common.AccountPicker;
                                  ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:38: package com.google.android.gms.common does not exist
  import com.google.android.gms.common.ConnectionResult;
                                  ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:39: package com.google.android.gms.common does not exist
  import com.google.android.gms.common.GooglePlayServicesUtil;
                                  ^
  Copying: out/target/common/obj/JAVA_LIBRARIES/jp.co.sharp.android.model.orange_sh70f_intermediates/noproguard.classes.dex
  target Jar: jp.co.sharp.android.model.orange_sh70f (out/target/common/obj/JAVA_LIBRARIES/jp.co.sharp.android.model.orange_sh70f_intermediates/javalib.jar)
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:110: cannot find symbol
  symbol  : variable AccountPicker
  location: class com.example.appreviews.ReviewScreen
          Intent intent = AccountPicker.newChooseAccountIntent(null, null,
                      ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:132: cannot find symbol
  symbol  : variable GooglePlayServicesUtil
  location: class com.example.appreviews.ReviewScreen
          int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
                   ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:134: cannot find symbol
  symbol  : variable ConnectionResult
  location: class com.example.appreviews.ReviewScreen
          case ConnectionResult.SUCCESS:
               ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:138: cannot find symbol
  symbol  : variable ConnectionResult
  location: class com.example.appreviews.ReviewScreen
          case ConnectionResult.SERVICE_MISSING:
               ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:141: cannot find symbol
  symbol  : variable ConnectionResult
  location: class com.example.appreviews.ReviewScreen
          case ConnectionResult.SERVICE_VERSION_UPDATE_REQUIRED:
               ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:145: cannot find symbol
  symbol  : variable ConnectionResult
  location: class com.example.appreviews.ReviewScreen
          case ConnectionResult.SERVICE_DISABLED:
               ^
  packages/apps/GoogleReviews/src/com/example/appreviews/ReviewScreen.java:261: cannot find symbol
  symbol  : variable GoogleAuthUtil
  location: class com.example.appreviews.ReviewScreen
              GoogleAuthUtil.invalidateToken(this, token);
              ^
  11 errors
  </code></pre>
  
  <p>What need to be done, such that I can get rid of this error.</p>
  
  <p>Any help is much appreciated.</p>