installing qt

[danvitt]

Hello, I could really use some help with this install file. the goal is to setup kdevelop1.2, right now i am trying to install qt1.45 so I can link kdevelop to the libraries and since i'm a new linux user i get lost easily.

according to the install file it says:

2. Set some environment variables in the file .profile (or .login, depending on your shell) in your home directory. (Create the file if it is not there already.)

QTDIR - wherever youinstalled Qt
PATH - to locate the moc program
MANPATH - to access the Qt man pages
LD_LIBRARY_PATH - for the shared Qt library

This is done like this:
In .profile (in case your shell if bash, ksh, zsh or sh):
QTDIR=/usr/local/qt
PATH=$QTDIR/bin:$PATH
if [ $MANPATH ]
then
MANPATH=$QTDIR/man:$MANPATH
else
MANPATH=$QTDIR/man
fi
I'm not sure where EXactly i am suppose to create or find the ".profile" file . I did try and create one in the directory of / and a few others that i thought might be the home directory( i'd be more specific but i would have to reboot back into linux to find out, thanks to those stupid winmodems). I did find a file called .bash_profile, I tried to add the text above to the file but still couldnt get it to work.

I've also tried to enter the text in the command line but after typing FI, it says "cannot find directory /usr/local/qt/man. but the directory does exist

well i need to reboot into linux so to make sure i am getting my stories straight . i will be posting back so if you need any more info before giving advice please post it. I want to keep this short anyway and avoid asking to many questions at once. Thanks for your time

[JimH]

What distribution and version of Linux are you using? There could be several different wasy to this.

As the root user, open the file /etc/profile. This will make the changes available to all users. Add these lines:

QTDIR="/usr/local/qt"
PATH=$QTDIR/bin:$PATH
export PATH QTDIR

You will already have an "export" instead of adding your own you can just add QTDIR to the end of it. It will already be exporting the PATH variable. Just place your QTDIR and PATH statements before the export line.

The manpages should have automatically been installed in /usr/local/man. This should already be in you MANPATH You shouldnt have to set it. You can get a listing of where man looks for manpages by typing at a console prompt: man --path
For more information you can at a console prompt type: man man


The manpage paths should be set in /etc/man.config This will probably be distribution specific.

To set the LD_LIBRARY_PATH open the file /etc/ld.so.conf and add the path to your qt libraries it should be: /usr/local/qt/lib

Save the changes. Then at the console prompt type: ldconfig
This will update your ld.so.cache

You don't have to reboot for the changes to /etc/profile to take effect. Just logout and log back in too re-read /etc/profile. Or you can at a console prompt type: source /etc/profile
This doesn't seem to work on all distro's it is usually easier to just logout and login.

It is seldom necessary to reboot Linux. You don't have to reboot everytime you make a change. Not like some other operating system that will go un-named. :

If you are using an RPM or Debian based distribution all this is automated by just installing the proper packages.

Jim H

[danvitt]

Thanks alot! That worked out really well! So I went on to install Kdevelop 1.2 after typing ./configure and halfway down the list i get this error:

checking for KDE headers installed... configure: error: your system is not able to compile a small KDE application!

Check, if you installed the KDE header files correctly.

so I looked at the faq and I can see a similar error that says configure complains about not being able to compile a small kde application and Examining config.log reveals that it can't find the library libXext

I checked the log and this don't seem to be the case
so now im kinda stuck again
oh yea i forgot to mention im using mandrake7.2 and kde2.0

[JimH]

Since you are using Mandrake you could have saved yourself alot of work by just installing the qt and kde1-compat rpm's off your mandrake cd's. BUt you did learn how to edit you PATH statements anyway.

From your mandrake cd's install the rpms:
kde1-compat
kde1-compat-devel
That should cure your problem with compiling kdevelop.

[danvitt]

I dont have any thing by those particular file names. I only 1 cd but there is quite a few files with *devel* in them. I'll check them out. thanks

[JimH]

I should have put the full name, they should say:

kde1-compat-1.1.2-7mdk.i586.rpm
kde1-compat-devel-1.1.2-7mdk.i586.rpm

If you don't have them just download them from your favorite mandrake mirror site.