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Building examples on Ubuntu with Qt-5.13.0

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  • G gibbogle

    @jsulm
    The kit has the compiler as: GCC (C++, x86 64bit in /usr/bin), and in /usr/bin I see gcc as a link to gcc-5.
    'gcc -v' shows

    Using built-in specs.
    COLLECT_GCC=gcc
    COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper
    Target: x86_64-linux-gnu
    Configured with: ../src/configure -v --with-pkgversion='Ubuntu 5.4.0-6ubuntu1~16.04.11' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-5 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
    Thread model: posix
    gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.11)

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #5

    @gibbogle Please check your Kit: are there any warnings/errors?
    Is C++ compiler set as g++?

    https://forum.qt.io/topic/113070/qt-code-of-conduct

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    • jsulmJ jsulm

      @gibbogle Please check your Kit: are there any warnings/errors?
      Is C++ compiler set as g++?

      G Offline
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      gibbogle
      wrote on last edited by
      #6

      @jsulm
      I don't see any warnings or errors associated with Qt-5.13.0.
      How do I set gcc to g++?

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      • jsulmJ jsulm

        @gibbogle Please check your Kit: are there any warnings/errors?
        Is C++ compiler set as g++?

        G Offline
        G Offline
        gibbogle
        wrote on last edited by
        #7

        @jsulm
        To better express this: in the list of Compilers I see just many versions of GCC and some of Clang.

        jsulmJ 1 Reply Last reply
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        • G gibbogle

          @jsulm
          To better express this: in the list of Compilers I see just many versions of GCC and some of Clang.

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #8

          @gibbogle Can you show a screenshot of your Kit configuration?

          https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • jsulmJ jsulm

            @gibbogle Can you show a screenshot of your Kit configuration?

            G Offline
            G Offline
            gibbogle
            wrote on last edited by
            #9

            @jsulm Before I try to find out how to that, perhaps there is a simple solution.
            In Compilers, the Auto-detected list has two entries for GCC (C++, x86 64bit in /usr/bin) and two for GCC 5(C++, x86 64bit in /usr/bin). When I select these I see that the associated compiler paths are all to a version of g++:
            /usr/bin/g++
            /usr/bin/x86_64-linux-gnu-g++
            /usr/bin/g++-5
            /usr/bin/x86_64-linux-gnu-g++-5

            I know that the kit is using GCC, not GCC 5, but there is no way to see which of the first two in the above list it corresponds to (g++ or x86_64-linux-gnu-g++).

            Now I see that they all point to g++-5

            gib@gigabyte:/usr/bin$ ls -al g++
            lrwxrwxrwx 1 root root 5 May 20 2017 g++ -> g++-5
            -rwxr-xr-x 1 root root 919832 Aug 28 2018 g++-5
            lrwxrwxrwx 1 root root 5 May 20 2017 x86_64-linux-gnu-g++ -> g++-5
            lrwxrwxrwx 1 root root 5 Aug 28 2018 x86_64-linux-gnu-g++-5 -> g++-5

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            • jsulmJ jsulm

              @gibbogle Can you show a screenshot of your Kit configuration?

              G Offline
              G Offline
              gibbogle
              wrote on last edited by
              #10

              @jsulm I don't know how to get a screenshot in Linux.
              The kit for Qt-5.13.0 is (default) has:
              Compiler: GCC (C++, x86 64bit in /usr/bin)
              Environment: No changes to apply.
              Qt version: Qt 5.13.0 (gcc_64)

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              • G gibbogle

                @jsulm Before I try to find out how to that, perhaps there is a simple solution.
                In Compilers, the Auto-detected list has two entries for GCC (C++, x86 64bit in /usr/bin) and two for GCC 5(C++, x86 64bit in /usr/bin). When I select these I see that the associated compiler paths are all to a version of g++:
                /usr/bin/g++
                /usr/bin/x86_64-linux-gnu-g++
                /usr/bin/g++-5
                /usr/bin/x86_64-linux-gnu-g++-5

                I know that the kit is using GCC, not GCC 5, but there is no way to see which of the first two in the above list it corresponds to (g++ or x86_64-linux-gnu-g++).

                Now I see that they all point to g++-5

                gib@gigabyte:/usr/bin$ ls -al g++
                lrwxrwxrwx 1 root root 5 May 20 2017 g++ -> g++-5
                -rwxr-xr-x 1 root root 919832 Aug 28 2018 g++-5
                lrwxrwxrwx 1 root root 5 May 20 2017 x86_64-linux-gnu-g++ -> g++-5
                lrwxrwxrwx 1 root root 5 Aug 28 2018 x86_64-linux-gnu-g++-5 -> g++-5

                G Offline
                G Offline
                gibbogle
                wrote on last edited by gibbogle
                #11

                @gibbogle
                In fact (* got stripped in the copy-and-paste) I typed:
                ls -al * g++ *
                (without the spaces)

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                • G gibbogle

                  @gibbogle
                  In fact (* got stripped in the copy-and-paste) I typed:
                  ls -al * g++ *
                  (without the spaces)

                  G Offline
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                  gibbogle
                  wrote on last edited by
                  #12
                  This post is deleted!
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                  • G gibbogle

                    This post is deleted!

                    G Offline
                    G Offline
                    gibbogle
                    wrote on last edited by
                    #13
                    This post is deleted!
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                    • jsulmJ jsulm

                      @gibbogle Can you show a screenshot of your Kit configuration?

                      G Offline
                      G Offline
                      gibbogle
                      wrote on last edited by
                      #14

                      @jsulm I just reminded myself that the build does find and use g++, and makes the executable. I located it, and it runs OK. So the configure errors about g++ are perhaps not important, but there is still the problem with the missing directory tree.

                      Should I make a bug report?

                      jsulmJ 1 Reply Last reply
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                      • G gibbogle

                        @jsulm I just reminded myself that the build does find and use g++, and makes the executable. I located it, and it runs OK. So the configure errors about g++ are perhaps not important, but there is still the problem with the missing directory tree.

                        Should I make a bug report?

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by jsulm
                        #15

                        @gibbogle said in Building examples on Ubuntu with Qt-5.13.0:

                        missing directory tree

                        You mean in QtCreator? This is not a bug - if qmake fails the project structure will not be updated.
                        What happens if you call qmake in a terminal instead in QtCreator?

                        https://forum.qt.io/topic/113070/qt-code-of-conduct

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                        • jsulmJ jsulm

                          @gibbogle said in Building examples on Ubuntu with Qt-5.13.0:

                          missing directory tree

                          You mean in QtCreator? This is not a bug - if qmake fails the project structure will not be updated.
                          What happens if you call qmake in a terminal instead in QtCreator?

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                          gibbogle
                          wrote on last edited by gibbogle
                          #16

                          @jsulm But qmake doesn't fail when I do Build > Run qmake, and the build does succeed.
                          I've now found that if I build for the first time then close the project (no project tree), then reopen the project, I do get a project tree. You might not call this a bug, but it's definitely confusing and undesirable.

                          There is also the issue that after a successful build, clicking the green arrow to run the program gives the "Could not find the executable" popup. (I just discovered that on reopening the project - and seeing a project tree - the green arrow does execute the program.) It seems likely that all these issues stem from the same cause.

                          Yes, this is all within Qt Creator.

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