How do I compile QT with thread support

2fry · November 2, 2010, 2:50am

I am trying to install an Open GL screen saver “EulerTop-1.2” and I get the following error message when I run configure - “checking for perl… /usr/bin/perl
checking for Qt… configure: error: Qt (>= Qt 3.2) (library qt-mt) not found. Please check your installation!
For more details about this problem, look at the end of config.log.
Make sure that you have compiled Qt with thread support!”

It appears to be installed -
vance@linux-i4xo:/> rpm -q qt3
qt3-3.3.8b-93.1.x86_64

but how does one enable thread support?
I have looked around the web but cannot find a solution.

malcolmlewis · November 2, 2010, 3:28am

Hi
You need to install qt3-devel, it should add -DQT_THREAD_SUPPORT in the
QT_CXXFLAGS

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malcolmlewis · November 2, 2010, 6:19am

Hi
Since they are trying to keep KDE3 alive, I’ve built it as an rpm and
pushed it through to KDE:KDE3 repository…

But you can also find it here at the moment;
http://software.opensuse.org/search?q=EulerTop&baseproject=ALL&lang=en&exclude_debug=true

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2fry · November 3, 2010, 12:28am

QT3-Development is installed plus everything else related to qt3 and qt4 that I could find. I am guessing something needs to be compiled with certain options set. By the way I am running KDE 4.3.5, note my signature.

martin_helm · November 3, 2010, 3:19pm

2fry wrote:

>
> QT3-Development is installed plus everything else related to qt3 and qt4
> that I could find. I am guessing something needs to be compiled with
> certain options set. By the way I am running KDE 4.3.5, note my
> signature.
>
Your configure script says that it cannot find qt-mt which is part of qt3
/usr/lib/qt3/lib64/libqt-mt.so.3 (on my machine)
Can you check if that file is available on your machine?
If it is there it is not a question of a missing package but you have to
tell the configure script somehow where it shall look for the qt3 libraries.

…/configure --help should show you the options (they are of course different
for every software you want to compile).

2fry · November 12, 2010, 1:31am

Here is whats in my QT3 library directorys -
vance@localhost:/usr/lib/qt3/lib64> ls
libqassistantclient.a libqca.so.1.0.0 libqt-mt.so.3 libqui.so
libqassistantclient.prl libqt-mt.la libqt-mt.so.3.3 libqui.so.1
libqca.so.1 libqt-mt.prl libqt-mt.so.3.3.8 libqui.so.1.0
libqca.so.1.0 libqt-mt.so libqui.prl libqui.so.1.0.0
vance@localhost:/usr/lib/qt3/lib64>

vance@localhost:/usr/lib/qt3/lib> ls
libqassistantclient.a libqt-mt.so.3 libqui.so libqui.so.1.0.0
libqt-mt.la libqt-mt.so.3.3 libqui.so.1
libqt-mt.so libqt-mt.so.3.3.8 libqui.so.1.0
vance@localhost:/usr/lib/qt3/lib>

I have tried setting every path I can find to help the program find and included it in the configure command line but it continues to complain it can’t find it.

martin_helm · November 12, 2010, 2:02am

It is very late here now maybe I can give it a try to test compilation of
EulerTop-1.2 on my machine a try tomorrow evening and will report back.

Can you give me the exact link where you downloaded it.

malcolmlewis · November 12, 2010, 2:13am

Hi
I built it and pushed it out to the KDE3 repositories;
http://software.opensuse.org/search?q=EulerTop&baseproject=ALL&lang=en&exclude_filter=home%3A&exclude_debug=true
Have a look in the %build section to see the compile options;
https://build.opensuse.org/package/view_file?file=EulerTop.spec&package=EulerTop&project=KDE%3AKDE3&srcmd5=873d5ae59b01f28f24c15b377eeab38e

–
Cheers Malcolm °¿° (Linux Counter #276890)
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martin_helm · November 12, 2010, 1:22pm

Thanks to malcolmlewis for compiling it in the obs so I will not further
look at it.

2fry · November 13, 2010, 1:59am

Thank You Malcolm Lewis! I had given up on compiling it myself. KPendulum now works again.

malcolmlewis · November 13, 2010, 2:23am

Hi
Your welcome, the real trick for those KDE3 applications is adding the kdelibs3-devel and then sourcing the common_options to setup the build environment. Since there are some users trying to keep KDE3 alive I built and pushed through for others