Compile Qt 5.2.0 with ICU

Finally find a way to compile Qt 5.2.0 with ICU. It seems the PATH, LIBS and INCLUDE environment variable somehow being reset/ignore during the build process. So, in order to help the compiler and/or linker to find ICU libraries, I've copied all the ICU development files to Qt source tree and the compiler and/or linker now recognized the existence of ICU libraries and build Qt 5.2.0 shared version successfully with WebKit support.

Qt 5.2.0 released

Qt 5.2.0 has been released and so I will try compiling Qt 5.2.0 instead. To be honest, I have switched on the first day 5.2.0 released.
The problem that I encountered so far is, I cannot compiled with icu. Linker complained that it cannot find the library.
However, when I checked with my settings, the location of the library has already been added to environment path and libs. Cannot find the cause (by the way I use the same script to compile 5.1.1 without such issue).
Cannot link with icu means no webkit. That's a shame.
By the way, I have managed to compile without icu and will release the package to my partner to test it. The package will be a portable tools set (thanks qtbinpatcher author to make it possible) with Qt 5.2.0 shared libraries (debug and release) and static (release only). This tools set can compile executable using dlls that can be run on Windows XP SP3.
As promise to  +Alex Au, I will post the steps to compile Qt shortly.