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Qt 5.7 -lGL not found

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  • M Offline
    M Offline
    muratkarakus7
    wrote on last edited by
    #2

    It should be OpenGL library.

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    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #3

      Hi and welcome to devnet,

      Please search the forum a bit, this question has been asked many times already: you are missing the OpenGL development package on your system.

      Then name of the package depends on your distribution.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • C Offline
        C Offline
        chrysl666
        wrote on last edited by chrysl666
        #4

        I have the same problem .
        using Centos 7.2.1511 Core(x86-64) Cinnamon 2.8.8 (GCC) 4.8.5 20150623
        after have installed all components my Qt creator is still sending error messages about libGL . which libGL should I use ?

        /usr/bin/ld: skipping incompatible /usr/lib64/libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /lib/../lib64/libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /usr/lib/../lib64/libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /lib64/libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /usr/lib64/libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /usr/lib64/libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /lib/libGL.so when searching for -lGL
        /usr/bin/ld: skipping incompatible /usr/lib/libGL.so when searching for -lGL

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by SGaist
          #5

          Hi,

          Did you install a 32 bit Qt in your system ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          C 1 Reply Last reply
          0
          • SGaistS SGaist

            Hi,

            Did you install a 32 bit Qt in your system ?

            C Offline
            C Offline
            chrysl666
            wrote on last edited by
            #6

            @SGaist

            my version is qt-opensource-linux-x64-5.7.0

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #7

              Can you show the linker line before it starts outputting this error ?

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • C Offline
                C Offline
                chrysl666
                wrote on last edited by
                #8

                18:18:02: Running steps for project MyPrj...
                18:18:02: Starting: "/home/chrystielira/Qt5.7.0x/5.7/gcc_64/bin/qmake" /home/chrystielira/Desktop/CPP_projects/MyPrj/MyPrj.pro -r -spec linux-g++ CONFIG+=debug CONFIG+=qml_debug
                Info: creating stash file /home/chrystielira/Desktop/CPP_projects/build-MyPrj-Desktop_Qt_5_7_0_GCC_64bit-Debug/.qmake.stash
                18:18:02: The process "/home/chrystielira/Qt5.7.0x/5.7/gcc_64/bin/qmake" exited normally.
                18:18:02: Starting: "/usr/bin/make"
                /home/chrystielira/Qt5.7.0x/5.7/gcc_64/bin/uic ../MyPrj/mainwindow.ui -o ui_mainwindow.h
                g++ -c -pipe -g -std=gnu++11 -Wall -W -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../MyPrj -I. -I../../../Qt5.7.0x/5.7/gcc_64/include -I../../../Qt5.7.0x/5.7/gcc_64/include/QtWidgets -I../../../Qt5.7.0x/5.7/gcc_64/include/QtGui -I../../../Qt5.7.0x/5.7/gcc_64/include/QtCore -I. -I. -I../../../Qt5.7.0x/5.7/gcc_64/mkspecs/linux-g++ -o main.o ../MyPrj/main.cpp
                g++ -c -pipe -g -std=gnu++11 -Wall -W -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../MyPrj -I. -I../../../Qt5.7.0x/5.7/gcc_64/include -I../../../Qt5.7.0x/5.7/gcc_64/include/QtWidgets -I../../../Qt5.7.0x/5.7/gcc_64/include/QtGui -I../../../Qt5.7.0x/5.7/gcc_64/include/QtCore -I. -I. -I../../../Qt5.7.0x/5.7/gcc_64/mkspecs/linux-g++ -o mainwindow.o ../MyPrj/mainwindow.cpp
                /home/chrystielira/Qt5.7.0x/5.7/gcc_64/bin/moc -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I/home/chrystielira/Qt5.7.0x/5.7/gcc_64/mkspecs/linux-g++ -I/home/chrystielira/Desktop/CPP_projects/MyPrj -I/home/chrystielira/Qt5.7.0x/5.7/gcc_64/include -I/home/chrystielira/Qt5.7.0x/5.7/gcc_64/include/QtWidgets -I/home/chrystielira/Qt5.7.0x/5.7/gcc_64/include/QtGui -I/home/chrystielira/Qt5.7.0x/5.7/gcc_64/include/QtCore -I. -I/usr/include/c++/4.8.5 -I/usr/include/c++/4.8.5/x86_64-redhat-linux -I/usr/include/c++/4.8.5/backward -I/usr/lib/gcc/x86_64-redhat-linux/4.8.5/include -I/usr/local/include -I/usr/include ../MyPrj/mainwindow.h -o moc_mainwindow.cpp
                g++ -c -pipe -g -std=gnu++11 -Wall -W -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../MyPrj -I. -I../../../Qt5.7.0x/5.7/gcc_64/include -I../../../Qt5.7.0x/5.7/gcc_64/include/QtWidgets -I../../../Qt5.7.0x/5.7/gcc_64/include/QtGui -I../../../Qt5.7.0x/5.7/gcc_64/include/QtCore -I. -I. -I../../../Qt5.7.0x/5.7/gcc_64/mkspecs/linux-g++ -o moc_mainwindow.o moc_mainwindow.cpp
                g++ -Wl,-rpath,/home/chrystielira/Qt5.7.0x/5.7/gcc_64/lib -o MyPrj main.o mainwindow.o moc_mainwindow.o -L/home/chrystielira/Qt5.7.0x/5.7/gcc_64/lib -lQt5Widgets -L/usr/lib64 -lQt5Gui -lQt5Core -lGL -lpthread
                /usr/bin/ld: skipping incompatible /usr/lib64/libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /lib/../lib64/libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /usr/lib/../lib64/libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /lib64/libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /usr/lib64/libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /usr/lib64/libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /lib/libGL.so when searching for -lGL
                /usr/bin/ld: skipping incompatible /usr/lib/libGL.so when searching for -lGL
                /usr/bin/ld: cannot find -lGL
                collect2: error: ld returned 1 exit status
                make: *** [MyPrj] Error 1
                18:18:05: The process "/usr/bin/make" exited with code 2.
                Error while building/deploying project MyPrj (kit: Desktop Qt 5.7.0 GCC 64bit)
                When executing step "Make"
                18:18:05: Elapsed time: 00:03.

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #9

                  Maybe a silly question but did you install the OpenGL dev package for your OS ?

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                  C 1 Reply Last reply
                  0
                  • SGaistS SGaist

                    Maybe a silly question but did you install the OpenGL dev package for your OS ?

                    C Offline
                    C Offline
                    chrysl666
                    wrote on last edited by
                    #10

                    @SGaist yes . unfortunately many times . but it doesn't works , and i don't have any clue of what is wrong in my system :( !!

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #11

                      Strange, then one silly idea, install the Qt development environment from your distribution. That might trigger some additional packages installation that might help.

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      0
                      • A Offline
                        A Offline
                        ascnp
                        wrote on last edited by
                        #12

                        It seems you did not install libgl or installed but the link was broken.
                        search libgl.so in your pi3 sysroot.

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