title: LOCAL_MODULE_FILENAME should not include file extensions i get this error each time i run ndk-build in terminal
body: <p>HERES MY ANDROID.MK FILE
      i ran android ndk-build and got an error that says" ndk-buld command not found" then i later exported my path using 
  "export ANDROID_NDK=/Users/mac15/android-ndk-r11c" and since then i have spent days googling possible resolutions and have gotten none that actually work.</p>
  
  <pre><code>    LOCAL_MODULE_FILENAME := libavcodec
      LIBJPEG_PATH := path-to-libjpeg
      LEPTONICA_PATH := path-to-leptonica  
      TESSERACT_PATH := path-to-tesseract
      LOCAL_MODULE := hello-jni
      LOCAL_PATH := $(call my-dir)
      TESSERACT_PATH := $(LOCAL_PATH)/com_googlecode_tesseract_android/src
      LEPTONICA_PATH := $(LOCAL_PATH)/com_googlecode_leptonica_android/src
      LIBJPEG_PATH := $(LOCAL_PATH)/libjpeg
      LIBPNG_PATH := $(LOCAL_PATH)/libpng
      # Just build the Android.mk files in the subdirs
      include $(call all-subdir-makefiles) 
      include $(BUILD_SHARED_LIBRARY)
      TESSERACT_PATH := $(call my-dir)/../external/tesseract-3.01
      LEPTONICA_PATH := $(call my-dir)/../external/leptonica-1.68
      LIBJPEG_PATH := $(call my-dir)/../external/libjpeg
  </code></pre>