title: What is jom in qt build system ? how to call jom from command line to build qt project?
body: <p>Trying to build and run a simple "Hello world.." Qt application from command line, started the following steps and struck in compiling and building..
  1. created main.cpp file 
  2. run qmake -pro to create project file
  3. run qmake to create make files
         ( here either have to run nmake or jom.. I tried jom )
  4. run jom.exe makefile , but nothing happens..</p>
  
  <p>so here are my questions .. 
  what is jom ( and expansion ?) , 
  how to invoke jom from command line..</p>
  
  <p>I am using Qt 5.1.1 with Microsoft Visual C++ compiler 11.0.</p>