No idea of why it is so.
I followed the building procedures in /doc/Getting_Started.htm
Follow the steps below to build your application using the Intel IPP shared object finding libraries:
Finally, I made IPP work. It's seriously inconvenient I think.
Unlike OpenCV, just add some .so dynamic libraries for linking, it works.
For IPP, you must follow http://software.intel.com/en-us/forums/showpost.php?p=64060
I can't link the dynamic libraries, but I have to link the static ".a" libraries instead. No idea of why it is so.
Besides, the libraries should be linked according to a specific sequence as suggested in the above link. This is really inconvenient.
Anyway, it's working now. I just hope it really brings the efficiency at the cost of inconvenience.