problem with inclusion of qt header files
 

While installing qt sdk , it took path /opt/qtsdk-2010.02 and header files are in /opt/qtsdk-2010.02/qt/include/ ,
but inorder to include the headers should be in /usr/include/
so while including the #include<QObject> , creator is showing error(ie., underlined).

and I am using RHEL OS.
how to make this work?

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got it ..

modify the tools->options->Qt4->Qt versions --- > Manual
give the location of qmake executable .

in above case, the location will be /opt/qtsdk-2010.02/qt/bin/qmake .
By doing this it will automatically sync the libraries & include paths.

Now my programs are executing properly.