SuperBuild: qt4 do not enable gtkstyle which auto enable some other stuff

SuperBuild/CMake/External_qt4.cmake

@@ -15,6 +15,8 @@ if(NOT __EXTERNAL_QT4__)
       set(git_protocol "git")
     endif()
 
+    #NOTE: make sure your superbuild install directory does not contain any
+    #Qt files from previous install of superbuild QT.
     # declare dependencies
     ADDTO_DEPENDENCIES_IF_NOT_SYSTEM(QT4 ZLIB TIFF PNG SQLITE FREETYPE)
 
@@ -29,8 +31,6 @@ if(NOT __EXTERNAL_QT4__)
       set(QT4_SB_CONFIG "${QT4_SB_CONFIG} -no-openssl")
       if(APPLE)
         set(QT4_SB_CONFIG "${QT4_SB_CONFIG} -no-framework")
-      else()
-        set(QT4_SB_CONFIG "${QT4_SB_CONFIG} -gtkstyle")
       endif()
     endif()
     STRING(REGEX REPLACE "/$" "" CMAKE_WIN_INSTALL_PREFIX ${SB_INSTALL_PREFIX})
@@ -84,6 +84,7 @@ if(NOT __EXTERNAL_QT4__)
         ${CMAKE_BINARY_DIR}/configure_qt4.sh
         DEPENDS ${QT4_DEPENDENCIES}
         )
+
     endif()
 
     if(APPLE)

SuperBuild/patches/QT4/configure_qt4.sh.in

-@QT4_SB_SRC@/configure -prefix @SB_INSTALL_PREFIX@ -opensource -confirm-license -release -shared -nomake demos -nomake examples -nomake tools -no-phonon-backend -no-phonon -no-script -no-scripttools -no-multimedia -no-webkit -plugin-sql-sqlite -no-nis -no-qt3support -system-zlib -system-libpng -system-libtiff -system-libjpeg -system-sqlite -L @SB_INSTALL_PREFIX@/lib -I @SB_INSTALL_PREFIX@/include -I @SB_INSTALL_PREFIX@/include/freetype2 @QT4_SB_CONFIG@ -no-nis -no-javascript-jit
+@QT4_SB_SRC@/configure -prefix @SB_INSTALL_PREFIX@ -opensource -confirm-license -release -shared -nomake demos -nomake examples -nomake tools -no-phonon-backend -no-phonon -no-script -no-scripttools -no-multimedia -no-webkit -no-sm -no-xrender -no-fontconfig -no-gtkstyle -no-declarative -no-nis -no-javascript-jit -plugin-sql-sqlite -no-qt3support -system-zlib -system-libpng -system-libtiff -system-libjpeg -system-sqlite -L @SB_INSTALL_PREFIX@/lib -I @SB_INSTALL_PREFIX@/include -I @SB_INSTALL_PREFIX@/include/freetype2 @QT4_SB_CONFIG@