Compile for 32 bit on 64 Bit Linux

Bear35645 · wrote on 23 Jan 2015, 20:53

Hello All,

I have a 64-Bit machine and have installed Qt 5.4 on it. The Operating system is Fedora 21. I need to compile my code for a 32 bit machine. I have installed the 32 bit libraries, but my program still will not make cleanly. One of the errors I get is the following:
:-1: error: skipping incompatible /home/kbrooks/Qt/5.4/gcc_64/lib/libQt5Gui.so when searching for -lQt5Gui

I am assuming there is a way to install these Qt Libraries for 32 bit. What would be the quickest way to do this?

Thanks in advance,
Kevin

SGaist · wrote on 23 Jan 2015, 20:57

Hi and welcome to devnet,

The quickest would be to grab the 32bit installer for Qt 5.4.0

Bear35645 · wrote on 23 Jan 2015, 21:13

SGaist,

Thanks for the reply, when I attempt to install the 32 bit version of Qt 5.4, I get "error while loading shared librarys: libSM.so.6: cannot open shared object file: No such file or directory.

I attempted to use yum to installed it, but it said it was up to date.

Kevin

SGaist · wrote on 23 Jan 2015, 23:05

Did you install the 32bit bit dependencies on your system ?

Bear35645 · wrote on 26 Jan 2015, 18:02

What dependencies do I need to install. I am sure they are not.

SGaist · wrote on 26 Jan 2015, 22:14

AFAIK you can install the same you have currently but for the i686 architecture

Bear35645 · wrote on 27 Jan 2015, 20:57

This got so painful, I decided to install Fedora 32 bit on my machine. Now when I try to compile just a basic program, I get an error "cannot find -lGL." For the life of me, I cannot find where this libraries lives, or how to fix this error.

SGaist · wrote on 27 Jan 2015, 23:01

The -lGL error question has been asked many time on the forum (search for "lGL error").

You are missing the OpenGL dev libraries.

Bear35645 · wrote on 28 Jan 2015, 14:07

Thank you. I now have it working.