configuration issues of ICC build in QT

Deal,

I cannot build QT with the configuration files you provided. First of all, below is my script:
#! /bin/bash

1. sudo apt-get install libxcb1 libxcb1-dev libx11-xcb1 libx11-xcb-dev libxcb-keysyms1 libxcb-keysyms1-dev libxcb-image0 libxcb-image0-dev libxcb-shm0 libxcb-shm0-dev libxcb-icccm4 libxcb-icccm4-dev libxcb-sync0 libxcb-sync0-dev libxcb-xfixes0-dev libxrender-dev libxcb-shape0-dev libxcb-randr0-dev libxcb-render-util0 libxcb-render-util0-dev libxcb-glx0-dev

rm -rf qt-everywhere-opensource-src-5.1.1
tar zxvf qt-everywhere-opensource-src-5.1.1.tar.gz
cd qt-everywhere-opensource-src-5.1.1
mkdir prefix
echo yes|./configure --prefix=./prefix/ -nomake tests -nomake examples -no-openssl -no-javascript-jit -opensource
make >& ../log.gcc.txt

It works with GCC, when I added "-platform linux-icc-64" (or -platform linux-icc) to use ICC. I get below error:

icpc -c -O2 -falign-functions=16 -ansi-alias -fstrict-aliasing -std=c++0x -w1 -Wcheck -wd654,1572,411,873,1125,2259,2261 -D_REENTRANT -D_REENTRANT -D_REENTRANT -DQT_NO_LIBUDEV -DQT_NO_XKB -DQT_UIC -DQT_NO_CAST_FROM_ASCII -DQT_UIC_CPP_GENERATOR -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_CORE_LIB -I../../../mkspecs/linux-icc -I. -I. -Icpp -I. -I../../../include -I../../../include/QtCore -I.moc/release-shared -o .obj/release-shared/customwidgetsinfo.o customwidgetsinfo.cpp
In file included from ../../../include/QtCore/qglobal.h(1),
from ../../../include/QtCore/../../src/corelib/tools/qalgorithms.h(45),
from ../../../include/QtCore/qalgorithms.h(1),
from ../../../include/QtCore/../../src/corelib/tools/qlist.h(45),
from ../../../include/QtCore/qlist.h(1),
from treewalker.h(45),
from customwidgetsinfo.h(45),
from customwidgetsinfo.cpp(42):
../../../include/QtCore/../../src/corelib/global/qglobal.h(975): catastrophic error: #error directive: "You must build your code with position independent code if Qt was built with -reduce-relocations. " "Compile your code with -fPIC or -fPIE."

1. error "You must build your code with position independent code if Qt was built with -reduce-relocations. "\
   ^

compilation aborted for customwidgetsinfo.cpp (code 4)
make[3]: *** [.obj/release-shared/customwidgetsinfo.o] Error 4

I tried to add -fPIC for QMAKE_CFLAGS in qtbase/mkspecs/linux-icc/qmake.conf and this issue is work arounded. Now, my question is, is this the correct approach? Because I have read GCC's mkspecs files, and I see it is using QMAKE_CFLAGS_APP = -fPIE, I tried to add this for ICC but it does not work as expected, it looks like the QT configuration will not handle this for ICC.

If it is not correct approach, could you please fix it with a better solution? If it is correct, please fix it.

Next issue is (note: I know it may be bad to submit 2 issues in my ticket, but it will be difficult to describe if I start a new ticket), after the -fPIC resolved, I get some other issues (similar issues). Take one as example:
ld: warning: libQt5CLucene.so.5, needed by /home/sgeng2/Desktop/IPS/QT/qt-everywhere-opensource-src-5.1.1/qttools/lib/libQt5Help.so, not found (try using -rpath or -rpath-link)
ld: warning: libQt5Sql.so.5, needed by /home/sgeng2/Desktop/IPS/QT/qt-everywhere-opensource-src-5.1.1/qttools/lib/libQt5Help.so, not found (try using -rpath or -rpath-link)

/home/sgeng2/Desktop/IPS/QT/qt-everywhere-opensource-src-5.1.1/qttools/lib/libQt5Help.so: undefined reference to `QCLuceneIndexWriter::setMergeFactor(int)'

The issue is easy to understand, I have compared the command line generated for ICC and GCC and find the issue there, GCC has below option in command line:
-Wl,-rpath-link,/home/sgeng2/Desktop/IPS/QT/qt-everywhere-opensource-src-5.1.1/qttools/lib
But, ICC does not have it, which will cause the issue. It works if I add it manually, or, another possible way is to add the option -lQt5CLucene. So, I think the configuration script is not handling correctly for ICC, it should be same with GCC. I can work around by adding these additional options in each projects's .pro, but the best solution should be making it behavior same with GCC. As I am not familiar with how these mkspecs and configuration script works in QT, I am here to ask for your help.

Thanks,
Shenghong