Qt 5 quick desktop components installation on linux ubuntu 12.10

[yandreiy]

Hello all,

I have some trouble understanding the installation process for qt quick desktop components with qt5.
I have downloaded the repository, but when I run "qmake qtdesktopcomponents.pro" I receive the warning: "Building Qt without accessibility is not supported for desktop components."
Here is the pro file:

load(qt_parts)
 
# We need accessibility
!contains(QT_CONFIG, accessibility) {
    error("Building Qt without accessibility is not supported for desktop components.")
}

load(qt_parts)

# We need accessibility
!contains(QT_CONFIG, accessibility) {
    error("Building Qt without accessibility is not supported for desktop components.")
}

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Please help me understand :
1. What is accessibility for ?
2. What is load(qt_parts) for ?

If i ignore the warning and continue with: make install - then i receive "make: *** No rule to make target `install'. Stop."

Thank you!