title: LinPhone building process for Android
body: <p>I am building Linphone application for android. I am working in Ubuntu 11.04 OS.</p>
  
  <p>I Followed the steps given in README file:</p>
  
  <ol>
  <li>Download the Android ndk (>=r5c) from google.</li>
  <li>Install the autotools: autoconf, automake, aclocal, libtoolize pkgconfig</li>
  <li><p>Run the ./prepare_sources.sh script in the top level directory. This will download iLBC source files and convert some assembly files in VP8 project.<br>
  <code>$ ./prepare_sources.sh</code></p></li>
  <li><p>Finally from directory linphone-android, just execute command:<br>
  <code>$ ${my google ndk directory}/ndk-build</code></p></li>
  </ol>
  
  <p>I got the output in terminal as </p>
  
  <pre><code>StaticLibrary  : libopencoreamr.a 
  Compile arm    : vpx &lt;= vpx_mem.c 
  In file included from jni/..//submodules/externals/build/libvpx/../../libvpx/vpx_mem/vpx_mem.c:18: 
  
  jni/..//submodules/externals/build/libvpx/../../libvpx/vpx_mem/include/vpx_mem_intrnl.h:14:24: error: vpx_config.h: No such file or directory 
  make: *** [obj/local/armeabi-v7a/objs/vpx/vpx_mem/vpx_mem.o] Error 1 
  </code></pre>
  
  <p>If i solve this error i will be able to  compile and run the Linphone application. Some one please help me to solve this..</p>