Qt linux环境变量，不知为何不对。可能自己不会配吧，大伙来帮忙看一下小弟我这样配对了没有

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# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
    . ~/.bashrc
fi

# User specific environment and startup programs


#新增qt
QTDIR=/usr/local/Trolltech/Qt-4.7.3
MANPATH=$QTDIR/doc/man:$MANPATH
LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH
QMAKESPEC=$QTDIR/mkspecs/linux-g++:$QMAKESPEC
Qt_include_QtGui=$QTDIR/include/QtGui:$Qt_include_QtGui:$Qt_include_QtGui

PATH=$HOME/bin:$QTDIR/bin:QMAKESPEC:$PATH
export QTDIR PATH MANPATHLD_LIBRARY_PATH Qt_include_QtGui

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[root@man hello]# qmake -project
[root@man hello]# qmake hello.pro
[root@man hello]# make >error.txt 2>&1

前面两个命令都没错，就是make的时候报错：
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gcc -c -m64 -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/local/Trolltech/Qt-4.7.3/mkspecs/linux-g++-64 -I. -I/usr/local/Trolltech/Qt-4.7.3/include/QtCore -I/usr/local/Trolltech/Qt-4.7.3/include/QtGui -I/usr/local/Trolltech/Qt-4.7.3/include -I. -I. -o hello.o hello.c
In file included from /usr/local/Trolltech/Qt-4.7.3/include/QtCore/qobjectdefs.h:45,
                 from /usr/local/Trolltech/Qt-4.7.3/include/QtCore/qobject.h:47,
                 from /usr/local/Trolltech/Qt-4.7.3/include/QtCore/qcoreapplication.h:45,
                 from /usr/local/Trolltech/Qt-4.7.3/include/QtGui/qapplication.h:45,
                 from /usr/local/Trolltech/Qt-4.7.3/include/QtGui/QApplication:1,
                 from hello.c:1:
/usr/local/Trolltech/Qt-4.7.3/include/QtCore/qnamespace.h:54: 警告：返回类型默认为‘int’
/usr/local/Trolltech/Qt-4.7.3/include/QtCore/qnamespace.h: 在函数‘QT_MODULE’中:
/usr/local/Trolltech/Qt-4.7.3/include/QtCore/qnamespace.h:54: 错误：expected declaration specifiers before ‘namespace’
/usr/local/Trolltech/Qt-4.7.3/include/QtCore/qnamespace.h:1787: 错误：expected declaration specifiers before ‘Q_DECLARE_OPERATORS_FOR_FLAGS’
/usr/local/Trolltech/Qt-4.7.3/include/QtCore/qnamespace.h:1808: 错误：expected declaration specifiers before ‘class’
/usr/local/Trolltech/Qt-4.7.3/include/QtCore/qnamespace.h:1863: 错误：expected declaration specifiers before ‘;’ token
In file included from /usr/local/Trolltech/Qt-4.7.3/include/QtCore/qobject.h:47,
                 from /usr/local/Trolltech/Qt-4.7.3/include/QtCore/qcoreapplication.h:45,
                 from /usr/local/Trolltech/Qt-4.7.3/include/QtGui/qapplication.h:45,
                 from /usr/local/Trolltech/Qt-4.7.3/include/QtGui/QApplication:1
......

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#include<QApplication>
#include<QLabel>
int main(int arg, char *argv[]){
    QApplication app(arg,argv);
    QLabel *label = new QLabel("HELLO QT !");
    label -> show();
    return app.exec();
}
程序在windowsQt编译正常通过