Alien Qt5 package failure
by selfprogrammed from LinuxQuestions.org on (#53PMS)
This is a question for AlienBob, who can sometime be found in forum.
Most packages from Alien, have worked fine. Thanks for the precompiled packages for slack-14.2.
It is rare that I can compile a package myself without having to spend a couple days fixing bugs in their code.
This started with the newer VLC package (alien), which required Qt5.
I have been without VLC for months now trying to figure out what failed in the package installation.
VLC just quits without ever showing a screen. Starting VLC from console, I can get help, but no display.
I had installed the qt5 from alien.
qt5-5.7.0-i586-3alien
Tried to compile another Qt5 program to test the Qt5 and that failed too.
Unknown QT: phonon4qt5
Where that phonon4qt5 is coming from, I have yet to figure out.
I have phonon-4.8.3 installed.
Finally found a test for qt5. It has some bin in its lib.
The /usr/lib/qt5/bin/pixeltool looked to be a good test for qt5.
It fails, with the message:
Quote:
There has got to be more about the requirements for the qt5 package, than what I know about.
I have upgraded just about every slack package.
The 'xcb' sounds suspiciously like something X11.
Also: Is this qt5 package a devel package (for compiling qt5)?
Does it have to be installed on a separate computer to keep it from killing qt4 projects?
It does not seem to have the same directories in /usr/lib/qt5 that the qt4 does.
I seem to have qt4 qmake around still, but cannot find the qt4 include files in /usr/include.
Running the qt4 pixeltool, /usr/lib/qt/bin/pixeltool, does work.
I have gathered package sources together so I can compile qt5 myself, which will likely fail
(because such large packages always fail to compile first time). So many dependencies, and
rarely any way to tell if they are critical, or optional. I don't know if this would
produce a qt5 better tailored to what I got, or would just be a week wasted.
Most packages from Alien, have worked fine. Thanks for the precompiled packages for slack-14.2.
It is rare that I can compile a package myself without having to spend a couple days fixing bugs in their code.
This started with the newer VLC package (alien), which required Qt5.
I have been without VLC for months now trying to figure out what failed in the package installation.
VLC just quits without ever showing a screen. Starting VLC from console, I can get help, but no display.
I had installed the qt5 from alien.
qt5-5.7.0-i586-3alien
Tried to compile another Qt5 program to test the Qt5 and that failed too.
Unknown QT: phonon4qt5
Where that phonon4qt5 is coming from, I have yet to figure out.
I have phonon-4.8.3 installed.
Finally found a test for qt5. It has some bin in its lib.
The /usr/lib/qt5/bin/pixeltool looked to be a good test for qt5.
It fails, with the message:
Quote:
| This application failed to start because it could not find or load the Qt platform plugin "xcb" in "". Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb. Reinstalling the application may fix this problem. |
I have upgraded just about every slack package.
The 'xcb' sounds suspiciously like something X11.
Also: Is this qt5 package a devel package (for compiling qt5)?
Does it have to be installed on a separate computer to keep it from killing qt4 projects?
It does not seem to have the same directories in /usr/lib/qt5 that the qt4 does.
I seem to have qt4 qmake around still, but cannot find the qt4 include files in /usr/include.
Running the qt4 pixeltool, /usr/lib/qt/bin/pixeltool, does work.
I have gathered package sources together so I can compile qt5 myself, which will likely fail
(because such large packages always fail to compile first time). So many dependencies, and
rarely any way to tell if they are critical, or optional. I don't know if this would
produce a qt5 better tailored to what I got, or would just be a week wasted.