PyGTK TreeView

源码：

#include <QApplication>
#include <QLabel>
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QLabel *label = new QLabel("Hello Qt!");
label->show();
return app.exec();

}

make信息：
:: warning: libts-0.0.so.0, needed by /usr/local/Trolltech/QtEmbedded-4.6.3-arm/lib/libQtGui.so, not found (try using -rpath or -rpath-link)
:: warning: libpng.so.3, needed by /usr/local/Trolltech/QtEmbedded-4.6.3-arm/lib/libQtGui.so, not found (try using -rpath or -rpath-link)
/usr/local/Trolltech/QtEmbedded-4.6.3-arm/lib/libQtGui.so:: error: undefined reference to `png_get_valid'
/usr/local/Trolltech/QtEmbedded-4.6.3-arm/lib/libQtGui.so:: error: undefined reference to `png_set_error_fn'
。。。。。。。。。。。。。。。

我查了usr/local/lib 和 usr/lib 下面有对应的库。我添加了路径到qt的 LD_LIBRARY_PATH，但还是同样的错误。