title: Using "exec()" with NDK
body: <p>I remember reading somewhere that it isn't advisable to use "exec" within the C code, compiled by NDK.</p>
  
  <p>What is the recommended approach? Do we try and push the EXEC code up to the Java-space; that is, so the JNI (or application) spawns the new process, (and where relevant passes the results back down to the NDK)?</p>