Using QT in CentOS

**vishakvkurup** · 11th January 2008, 05:06

Hi all,
This is my first post in this forum, and i am expecting all ur support.

I am having an application developed in qt 3.1.2 running in redhat 8. Now i plan to use CentOS 5, which is having qt 3.3.6 by default. Trolltech says qt 3.3.6 has forward and backward compatiblity with QT 3.3.x versions. So i need to recompile my code. I want to know if any code level modifications are needed for recompilation. If so what all are the changes. And is QT having any depedencies with the kernel. Pls do respond.

regards
VISHAK (vishak.kurup@nestgroup.net)

**vishakvkurup** · 11th January 2008, 11:47

Is any one having any information ?

**vishakvkurup** · 14th January 2008, 04:23

Hi all,

Is QT 3.1.2 binary compatible with QT 3.3.6. I want to know if i can use the binar of older version with out recompilation.

regards
Vishak V Kurup

**jacek** · 14th January 2008, 13:14

As the 3.3.6 changelog says:

It maintains both forward and backward
compatibility (source and binary) with Qt 3.3.5, 3.3.4, Qt 3.3.3,
Qt 3.3.2, Qt 3.3.1 and Qt 3.3.0.

**vishakvkurup** · 15th January 2008, 04:55

Hi all,

Is it possible to use QT 3.1.2 version in CentOS 5. CentOS 5 is having QT 3.3.6 by default.

Regards
Vishak V Kurup

**wysota** · 15th January 2008, 10:19

Yes, it should work fine. Qt has backward binary compatibility so an application compiled against Qt 3.1 should work with Qt 3.3 out of the box.

**GreyGeek** · 15th January 2008, 16:58

I don't run CentOS but if it uses a repository more than likely QT3.3.6 is in there and ready to apt-get, along with all necessary dependencies.

But, why are you staying with QT3.x? Upgrade to QT4.3.3 and leave the old stuff behind!

**jacek** · 15th January 2008, 22:01

{Merged three threads}

Please don't start multiple threads on the same problem. Also, please, don't send me e-mails if you have just posted exactly the same message on the forum.