[gentoo-user] Qt 4 programs segfault on startup

2008-11-09 Thread Peter Gille 
Hello list,

All of the programs on my computer using qt4 segfaults on startup. When I
look in /var/log/messages I see a line like this:

Nov  9 16:15:27 duolith [1029300.702228] qttest[29812]: segfault at
10130 ip 7f051f392269 sp 7fff2e3e3570 error 4 in
libqt-mt.so.3.3.8[7f051edbd000+7c4000]

which is odd, since the programs don't depend on qt3, they depend on qt4.
Programs using qt3, however, work as normal.

The program I used to get the above segfault looked like this:

#include QApplication

int main(int argc, char *argv[])
{
QApplication app(argc,argv);

return app.exec();
}


Does anyone have any idea what's going on and how to fix this?
I'm using qt-3.3.8b and qt-4.4.2

[gentoo-user] QT 4

2006-03-16 Thread James 
Hello,

Has anyone any experiences with developing software with QT4?

checking whats available, with 'emerge -pv qt', I see: 
x11-libs/qt-3.3.4-r8

Nothing else... If I add x11-libs/qt to the package.keywords
file, I get 
x11-libs/qt-4.1.1

after editing the package.keyword file, If I run emerge -uDp world,
it want to upgrade qt:
Calculating world dependencies ...done!
[ebuild U ] x11-libs/qt-3.3.4-r9 [3.3.4-r8]

I really confused as this is not very clear what the hardmasked, testing
and stable versions of QT?

I've been told that QT 4 is 'very young' which I interpret as unstable
and buggy. How do I tell if qt-4.1.1 is hard masked or testing
as I've never seen this before.


Should I avoid qt4 or is it OK for use, it's just testing on Gentoo?


Any feedback is appreciated,

James



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Re: [gentoo-user] QT 4

2006-03-16 Thread Dmitry S. Makovey 
On Thursday 16 March 2006 12:11, James wrote:
 Hello,

 Has anyone any experiences with developing software with QT4?

 checking whats available, with 'emerge -pv qt', I see:
 x11-libs/qt-3.3.4-r8

 Nothing else... If I add x11-libs/qt to the package.keywords
 file, I get
 x11-libs/qt-4.1.1

 after editing the package.keyword file, If I run emerge -uDp world,
 it want to upgrade qt:
 Calculating world dependencies ...done!
 [ebuild U ] x11-libs/qt-3.3.4-r9 [3.3.4-r8]

since packages you use (I assume KDE etc.) are not using qt4 (i.e. 
require specifically qt3 branch) portage doesn't find any reasons to 
bump version of qt. AFAIR Qt is a slotted package and you can safely 
go ahead and do 
emerge =x11-libs/qt-4.1.1 
but you packages wouldn't use it.

-- 
Dmitry Makovey
Web Systems Administrator
Athabasca University
(780) 675-6245


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Re: [gentoo-user] QT 4

2006-03-16 Thread Glenn Enright 
On Friday 17 March 2006 08:11, James wrote:
 Hello,

 Has anyone any experiences with developing software with QT4?

 checking whats available, with 'emerge -pv qt', I see:
 x11-libs/qt-3.3.4-r8

 Nothing else... If I add x11-libs/qt to the package.keywords
 file, I get
 x11-libs/qt-4.1.1

Just out of interest how far along is qt4? Last time I looked the next major 
release of kde *might* be using it, if it becomes stable in time. Is this 
still the case?

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Re: [gentoo-user] QT 4

2006-03-16 Thread Uwe Thiem 
On 17 March 2006 05:16, Glenn Enright wrote:

 Just out of interest how far along is qt4? Last time I looked the next
 major release of kde *might* be using it, if it becomes stable in time. Is
 this still the case?

The current version is Qt-4.1.1 AFAIK and it's pretty stable.

KDE4 will be base on Qt4, no if.

Uwe

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