qt libiries and headers
 

been trying to compile some programs from source and i keep getting this

checking for Qt... configure: error: Qt (>= Qt 3.0) (headers and libraries) not found. Please check your installation!
For more details about this problem, look at the end of config.log.

i read some places that some times its poeple not configing qt when they install it. My prob is i didn't install it. it was installed during linux mandrivas install. anyone help me out?

Hi

One thing you can try it to do

aclocal
autoconf
automake
configure

in the source root directory of the package you are trying to compile. Sometimes some local peculiarity on a system can make a configure script misbehave. If you rebuild the configure script (this may not work but it is worth a try!) maybe it will find the local QT you have installed, due to using different macros from aclocal/autoconf/automake.

Also, before you try the above, make sure that you have PKG_CONFIG_PATH and LD_LIBRARY_PATH setup correctly in your /home/your_user_name/.bashrc file: (at least, that's were it is on Rh9)

export PKG_CONFIG_PATH=/usr/bin/pkg-config:$PKG_CONFIG_PATH
export PKG_CONFIG_PATH=/opt/gtk-2.6/lib/pkgconfig:$PKG_CONFIG_PATH
export LD_LIBRARY_PATH=/opt/gtk-2.6/lib:$LD_LIBRARY_PATH

Of course, if you look closely you'll see these are so that configure scripts on my system can find GTK 2.6 - Qt will have different directories, so you need to find what those are put something like the above in your .bashrc with the
Qt directories subsituted where I have GTK.

The configure script then might find your QT libs. (If you are 100% sure you have Qt installed, though! If its not there, there is no way to find it, obviously...:)

since you are running an rpm distro, make sure you have both qt packages installed. one is qt-3.x.x-xxx.rpm and has the libs needed to use qt but you cannot compile against it. the other will be qt-3.x.x-devel - that has the headers and other things needed to compile against it ( this applies to all libraries on an rpm distro). the other thing is if qt-xxxx-devel is installed, the following path must point to the root of the qt installation ( for this example we'll assume it's something like /usr/qt3):

note that if you have the devel package installed, you should not have to set QTDIR, the package installation normally does it for you.