new FAQ entry: several Qt versions(was: Re: Ghost points in small app & question about using qt 2.0.1 libs.)

[benjamin j collar]

On Wed, 22 Dec 1999, Joachim Ansorg wrote:

>Hi!
>
>I use export QTDIR=<new QT version> and this will work without using the links.

Hello,

I tried this technique, and the one below with linking /usr/lib/qt to
/usr/lib/qt-1.44. Neither of them has worked.  Anybody else have any
ideas?

Thanks
Ben

 >
>--Joachim
>
>>Jeremy Webster wrote:
>>>     One other question.  Now that I have all the qt 1.44 libs working, how
>>> do I make it so that I can also use the qt 2.0.1 libs?  I was going through
>>> some of the toots over at Qt and they seem to really like qvbox.h and some
>>> other things that apparently aren't in the 1.44 set.   I tried fiddling
>>> around in the Project Options menu with no success.  Is any of this
>>> documented anywhere?
>>
>>Q: I want to develop with a newer Qt version than provided
>>   with my current Unix distribution. How do I do that?
>>A: Some things has to be done:
>>   1.) The newer Qt version must be installed parallely.
>>       [ For instance like this: /usr/lib/qt-1.44
>>                                 and
>>                                 /usr/lib/qt-2.0.2  ]
>>   2.) The compiler looks in /usr/local/qt or /usr/lib/qt 
>>       while deciding for the right headers of a Qt library.
>>       The link
>>          /usr/local/qt --> /usr/lib/qt
>>       is set in most of all cases.
>>
>>       That's why you just need to set one of these links 
>>       to tell the compiler what to choose:
>>          /usr/lib/qt --> /usr/lib/qt-2.0.2
>>            (for compiling Qt2 programs)
>>          /usr/lib/qt --> /usr/lib/qt-1.44
>>            (for compiling Qt1.44 programs)
>>
>>       The command for setting the link is:
>>          ln -s /usr/lib/qt /usr/lib/qt-2.0.2
>>       or
>>          ln -s /usr/lib/qt /usr/lib/qt-1.44
>>
>>   3.) To make sure that the linker find the right lib simply 
>>       switch to user "root" and add two lines in /etc/ld.so.conf :
>>          /usr/lib/qt-2.0.2/lib
>>          /usr/lib/qt-1.44/lib
>>       and run:
>>          /sbin/ldconfig -v
>>
>>-- 
>>
>>Ciao,
>>--Falk
>-- 
>BibleTime - the bible study program for KDE
>http://www.bibletime.de/
>info at bibletime.de
>

---------------------------
Ben Collar
http://www.unm.edu/~bcollar/
Finger me for my public key (finger bcollar at www.unm.edu)