Build error: cannot find -lGL
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Using Fedora 20 beta
$ uname -a
Linux vmf20 3.11.6-301.fc20.x86_64 #1 SMP Mon Oct 21 21:54:19 UTC 2013 x86_64 x86_64 x86_64 GNU/LinuxQtCreator 2.8.1 Based on Qt 5.1.1 (GCC 4.6.1)
I successfully built this code on a Windows machine and uploaded it to SourceForge.
Then I created the project on the Fedora 20 machine with ...
New Project -> Import Project -> Git Repository CloneHere is the project file. I don't see anything problematic in there.
@QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = bits
TEMPLATE = appSOURCES += main.cpp
hexedit.cpp
bits.cpp
bitfield.cpp
BitButton.cpp
shiftop.cpp
formatgroup.cppHEADERS +=
controlgroup.h
bits.ui.h
bits.h
bitfield.h
BitButton.h
hexedit.h
shiftop.h
formatgroup.hdebug {
DESTDIR = ../debug
}release {
DESTDIR = ../release
}
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Hi and welcome to devnet,
This question has been asked many many times on the forum. You are missing the OpenGL dev packages.
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Yes, fixed the link problem, THANK YOU. And thanks for welcoming me aboard.
For the benefit of others, the exact command for Fedora was ...
@ yum install mesa-libGL-devel
@Now, while Qt can now compile my project, I am still getting this complaint from the Qt linker.
@
Starting /home/tcamuso/projects/bits/release/bits...
Gtk-Message: Failed to load module "pk-gtk-module"
libGL error: failed to load driver: i965
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
/home/tcamuso/projects/bits/release/bits exited with code 0
@The build succeeds, but I'm afraid I may run into more problems lalter.
The command "LIBGL_DEBUG=verbose glxinfo" gives me a lot of information, but here are the errors.
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$ LIBGL_DEBUG=verbose glxinfo
name of display: localhost:10.0
libGL: OpenDriver: trying /usr/lib64/dri/tls/i965_dri.so
libGL error: failed to open drm device: Permission denied
libGL error: failed to load driver: i965
libGL: OpenDriver: trying /usr/lib64/dri/tls/swrast_dri.so
libGL: Can't open configuration file /etc/drirc: No such file or directory.
libGL: Can't open configuration file /home/tcamuso/.drirc: No such file or directory.
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That error I don't know… You should maybe check directly with Fedora.
Can you test with the system Qt ?
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Can you test with the system Qt ?
OK, what's happening is that I am logged in remotely to the Fedora 20 system that is running Qt. I've logged in with the following command:
$ ssh -Y martincook@vmf20
Then, from the console which is now logged into the remote F20 server, I invoke qtcreator.
$ qtcreator &
The F20 system then serves qtcreator to my laptop. Everything I do in that instance of qtcreator actually takes place on the F20 server, just that all the graphics will be served to my laptop instead of the graphics head of the server. I am also seeing this error when I remotely spawn other graphics applications, even a simple terminal.
When I log into the graphics head of the server directly, I do NOT see the "Gtk-Message: Failed to load module "pk-gtk-module"" message.
So Qt is working perfectly. It is my remote X setup that is missing something. I don't have this problem with other servers running X, so I suspect the F20 server is missing yet another X module.
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Or maybe a configuration of ssh X forwarding
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Yes, something is funky, but not with Qt.
:)I'll post when I find the answer.
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Heh. Fun with Fedora.
It's a bug in gnome-3 packaging, according to this.
https://bugzilla.redhat.com/show_bug.cgi?id=747449
The fix for “Gtk-Message: Failed to load module “pk-gtk-module”“ message is the following.
yum install gnome-packagekit
yum install PackageKit-gtk3-module
However, I still get the following error, though it does not seem to adversely affect anything, and I only get it when ssh X forwarding.
libGL error: failed to load driver: i965
libGL error: Try again with LIBGL_DEBUG=verbose for more details.I will post when I have an answer fo rthat.
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You can also ask on the interest mailing list, you'll find Qt's developers/maintainers there (this forum is more user oriented) They might have know something about that
