Cannot run qtdemo - directory missing

[fopetesl]

When I attempt to compile qtdemo using qmake and make I get the following error:
private/qt_x11_p.h: No such file or directory

Actually qt_x11_p.h doesn't exist anywhere on my file system.

I guess I am missing some packages, dev maybe? (doesn't seem to be a QT dev package)

QT 4.1.4

[wysota]

qtdemo should get compiled when you compile Qt itself. qt_x11_p.h is part of Qt4 source tree.

[fopetesl]

qtdemo should get compiled when you compile Qt itself. qt_x11_p.h is part of Qt4 source tree.

Thanks wysota. My package is/was part of the Mandriva library so I (mistakenly) assumed it is/was complete.
Since I appear to be running 4.1.4 can I either just download the missing part(s) from where
or, if up download the 4.2.x package am I likely to break anything in recompiling?
I already seem to have 3.x installed though why I don't know - can I remove this with impunity?

[wysota]

Thanks wysota. My package is/was part of the Mandriva library so I (mistakenly) assumed it is/was complete.

You should have qtdemo available then as part of one of Mandriva Qt4 packages (qt4-examples or simmilar).

Since I appear to be running 4.1.4 can I either just download the missing part(s) from where

Try your favourite urpmi mirror

or, if up download the 4.2.x package am I likely to break anything in recompiling?

No, you won't break anything. You can only break rpm dependencies, but that's not a big deal if you don't uninstall Qt4.1

I already seem to have 3.x installed though why I don't know - can I remove this with impunity?

No. Qt4 is not backwards compatible with Qt3, so all your Qt3 apps (including KDE) would stop working.