How can I configure QT source code if it can't detect default installed OpenGl ES?
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Hi,
I'm trying to install QT from source on Ubuntu 20.10, but I always get:
OpenVG ................................. no
OpenGL:
Desktop OpenGL ....................... no
OpenGL ES 2.0 ........................ no
OpenGL ES 3.0 ........................ no
OpenGL ES 3.1 ........................ no
OpenGL ES 3.2 ........................ no
Vulkan ................................. noERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.What can I do? I followed the instructions found here: https://wiki.qt.io/Building_Qt_5_from_Git, and https://doc.qt.io/qt-5/configure-options.html
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Hi and welcome to devnet,
Did you install the corresponding development packages on your system ?
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Hi and welcome to devnet,
Did you install the corresponding development packages on your system ?
@SGaist, yes I did.
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Since everything related to OpenGL are marked as no, it means that the detection have all failed. You should check the logs to see what exactly happened.
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Since everything related to OpenGL are marked as no, it means that the detection have all failed. You should check the logs to see what exactly happened.
@SGaist, Error log:
loaded result for library config.qtbase_gui.libraries.opengl
Trying source 0 (type pkgConfig) of library opengl ...- /usr/bin/pkg-config --exists --silence-errors gl
pkg-config did not find package.
=> source produced no result.
Trying source 1 (type makeSpec) of library opengl ...
header entry 'config.qtbase_gui.libraries.opengl.headers.0' passed condition.
GL/gl.h not found in [] and global paths.
=> source produced no result.
test config.qtbase_gui.libraries.opengl FAILED
loaded result for library config.qtbase_gui.libraries.opengl_es2
Trying source 0 (type pkgConfig) of library opengl_es2 ... - /usr/bin/pkg-config --exists --silence-errors glesv2
pkg-config did not find package.
=> source produced no result.
Trying source 1 (type makeSpec) of library opengl_es2 ...
header entry 'config.qtbase_gui.libraries.opengl_es2.headers.0' passed condition.
GLES2/gl2.h not found in [] and global paths.
=> source produced no result.
test config.qtbase_gui.libraries.opengl_es2 FAILED
loaded result for library config.qtbase_gui.libraries.drm
Trying source 0 (type pkgConfig) of library drm ... - /usr/bin/pkg-config --exists --silence-errors libdrm
pkg-config did not find package.
=> source produced no result.
Trying source 1 (type inline) of library drm ...
xf86drmMode.h not found in [] and global paths.
xf86drm.h not found in [] and global paths.
=> source produced no result.
Trying source 2 (type inline) of library drm ...
=> source failed condition 'config.integrity'.
test config.qtbase_gui.libraries.drm FAILED
loaded result for library config.qtbase_gui.libraries.openvg
Trying source 0 (type pkgConfig) of library openvg ... - /usr/bin/pkg-config --exists --silence-errors vg
pkg-config did not find package.
=> source produced no result.
Trying source 1 (type makeSpec) of library openvg ...
VG/openvg.h not found in [] and global paths.
=> source produced no result.
test config.qtbase_gui.libraries.openvg FAILED
- /usr/bin/pkg-config --exists --silence-errors gl
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What exact packages did you install for OpenGL development ?
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@SGaist,
libgl-dev, freeglut3-dev, mesa-common-dev and another related. Ubuntu build-essential package too... -
Did you restart the build from a clean state after you installed the development packages ?
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How do I do that? I'm new in C++, I came from Java. The "clean state" thing... But did some tests, openGL works well for me in the terminal...
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Use an out of source build and nuke it if something goes wrong.
By the way, why are you trying to build from sources ? You can either use the version provided with your distribution or the pre-built version provided by the Qt Company.
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The one provided by my distro is outdated, very outdated. I downloaded the "offline installer" because there are times I'm without internet.
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The offline installer already provides you with a pre-built Qt.
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How do I activate it? In tutorial they where explaining how to build from source only... From what I remember. I kinda read the readme file... And the instruction in readme file is:
./configure -prefix $PWD/qtbase <license> -nomake tests make -j 4 -
Did you actually ran the offline installer ?
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There is no runnable binary, for what I can see. Or I don't know the name... There are many modules here.
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There is no runnable binary, for what I can see. Or I don't know the name... There are many modules here.
@UltraBurstXD The offline installer is just one file. But offline installers are not available anymore for open source users (without commercial license). So, what exactly did you download?
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I downloaded here: https://www.qt.io/offline-installers
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I downloaded here: https://www.qt.io/offline-installers
@UltraBurstXD As I said: offline installer is just one file. Make it executable (chmod u+x OFFLINE_INSTALLER_FILE) and execute it. No need to build anything.
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@UltraBurstXD As I said: offline installer is just one file. Make it executable (chmod u+x OFFLINE_INSTALLER_FILE) and execute it. No need to build anything.
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@jsulm I don't know name of offline installer... It's my first time using qt... perhaps should I specify qt modules path to qt creator? And configure the environment variables?
@UltraBurstXD Lets do one step after another: you downloaded the offline installer, is that correct? Like http://download.qt.io/official_releases/qt/5.12/5.12.10/qt-opensource-linux-x64-5.12.10.run
