Problem compiling Qt5.7.0 on Antergos Linux



  • Hello.

    I am trying to compile Qt 5.7.0 Final from tar.gz Source Archive, as I need OpenSSL Support in my Application.

    The Steps I do are:

    • Open Yakuake
    • Switch to "/home/oliver/developing/xsdf64" (which is the out of source build directory)
    • Run the command
    /home/oliver/developing/qt5src/configure -opensource -confirm-license -prefix /home/oliver/developing/qt-build64/ -opengl desktop -debug-and-release -developer-build -openssl -icu -nomake tests -nomake examples -no-warnings-are-errors -platform linux-g++-64 -c++std c++14
    
    • And start compilation with "make -j 25" (which still dont fully utilize my old AMD 4 Core CPU)

    But now, after over 12 hours, the moving Output still repeats thousands of lines with

    /home/oliver/developing/xsdf64/qtbase/bin/qmake -qtconf /home/oliver/developing/xsdf64/qtbase/bin/qt.conf -o Makefile ../qt5src/qt.pro"
    

    This is the full config.summary:

    Configure summary
    Build type:    linux-g++-64 (x86_64, CPU features: mmx sse sse2)
    Build options:
    Configuration .......... accessibility accessibility-atspi-bridge alsa audio-backend avx avx2 avx512bw avx512cd avx512dq avx512er avx512f avx512ifma avx512pf avx512vbmi avx512vl c++11 c++14 clock-gettime clock-monotonic compile_examples concurrent cups dbus dbus-linked debug doubleconversion egl eglfs eglfs_gbm egl_x11 enable_new_dtags evdev eventfd fontconfig full-config gbm getaddrinfo getifaddrs glib gstreamer-1.0 gtk3 headersclean iconv icu inotify ipv6ifname kms large-config largefile libinput libproxy libudev linuxfb medium-config minimal-config mremap mtdev nis opengl openssl png poll_ppoll posix_fallocate precompile_header private_tests pulseaudio qpa qpa reduce_exports reduce_relocations rpath shared small-config sse2 sse3 sse4_1 sse4_2 ssse3 system-freetype system-harfbuzz system-jpeg system-png system-zlib threadsafe-cloexec tslib use_gold_linker xcb xcb-glx xcb-plugin xcb-render xcb-sm xcb-xlib xinput2 xkbcommon-evdev xlib xrender 
      Build parts ............ libs tools
      Mode ................... debug
      Using sanitizer(s)...... none
      Using C++ standard ..... c++14
      Using gold linker....... yes
      Using new DTAGS ........ yes
      Using PCH .............. yes
      Using LTCG ............. no
      Target compiler supports:
        SSE .................. SSE2 SSE3 SSSE3 SSE4.1 SSE4.2
        AVX .................. AVX AVX2
        AVX512 ............... AVX512F AVX512ER AVX512CD AVX512PF AVX512DQ AVX512BW AVX512VL AVX512IFMA AVX512VBMI
    
    Qt modules and options:
      Qt D-Bus ............... yes (linked to dbus-1)
      Qt Concurrent .......... yes
      Qt GUI ................. yes
      Qt Widgets ............. yes
      Large File ............. yes
      QML debugging .......... yes
      Use system proxies ..... no
    
    Support enabled for:
      Accessibility .......... yes
      ALSA ................... yes
      CUPS ................... yes
      DoubleConversion........ yes (bundled copy)
      Evdev .................. yes
      FontConfig ............. yes
      FreeType ............... yes (system library)
      Glib ................... yes
      GStreamer .............. yes (1.0)
      GTK platformtheme ...... yes
      HarfBuzz ............... yes (system library)
      Iconv .................. yes
      ICU .................... yes
      Image formats: 
        GIF .................. yes (plugin, using bundled copy)
        JPEG ................. yes (plugin, using system library)
        PNG .................. yes (in QtGui, using system library)
      libinput................ yes
      Logging backends: 
        journald ............... no
        syslog   ............... no
      mtdev .................. yes (system library)
      Networking: 
        getaddrinfo .......... yes
        getifaddrs ........... yes
        IPv6 ifname .......... yes
        libproxy.............. yes
        OpenSSL .............. yes (loading libraries at run-time)
      NIS .................... yes
      OpenGL / OpenVG: 
        EGL .................. yes
        OpenGL ............... desktop
        OpenVG ............... no
      PCRE ................... system
      pkg-config ............. yes 
      PulseAudio ............. yes
      QPA backends: 
        DirectFB ............. no
        EGLFS ................ yes
          EGLFS i.MX6 ........ no
          EGLFS i.MX6 Wayland. no
          EGLFS EGLDevice .... no
          EGLFS GBM .......... yes
          EGLFS Mali ......... no
          EGLFS Raspberry Pi . no
          EGLFS X11 .......... yes
        LinuxFB .............. yes
        Mir client............ no
        XCB .................. yes (system library)
          EGL on X ........... yes
          GLX ................ yes
          MIT-SHM ............ yes
          Xcb-Xlib ........... yes
          Xcursor ............ yes (loaded at runtime)
          Xfixes ............. yes (loaded at runtime)
          Xi2 ................ yes
          Xrandr ............. yes (loaded at runtime)
          Xrender ............ yes
          XKB ................ yes
          XShape ............. yes
          XSync .............. yes
      Session management ..... yes
      SQL drivers: 
        DB2 .................. no
        InterBase ............ yes (plugin)
        MySQL ................ no
        OCI .................. no
        ODBC ................. no
        PostgreSQL ........... no
        SQLite 2 ............. no
        SQLite ............... yes (plugin, using bundled copy)
        TDS .................. no
      tslib .................. yes
      udev ................... yes
      xkbcommon-x11........... yes (system library)
      xkbcommon-evdev......... yes
      zlib ................... yes (system library)
    

    Some System Specs:

    • Antergos Linux x64 (Arch based)
    • KDE 5 / Plasma 5 Desktop (with some Qt 5.6.1 Modules pre-installed as needed by KDE5)
    • Python (3) and Python2 installed in parallel (which will become a Problem later as I need to compile QtWebEngine)
    • AMD Phenom II 4x 965 BE
    • 320 GB Free HDD Space
    • RAM: 1.6-1.7 GB of 15.7 GB used (with make - j 25)
    • SWAP Partition: 0.00 GB of 14.9 GB used (with make -j 25)
    • GCC Version: 6.1.1-2

    "Linux from Scratch" also recommend to set

    export CXXFLAGS=-fno-delete-null-pointer-checks
    

    to compile Qt 5.7.0 with GCC 6. But the Result makes no difference: under "xsdf64/" are still no "libs" and "include" folders.

    I cancelled compilation for now.

    This is the first time I try to compile Qt under Linux. I have some experience under Windows but this is a PITA. Any hint is welcome! :)

    Thanks
    Oliver



  • I finally found the Problem. It is an absolutely dumb Problem:
    I unpacked the Source Archive to /home/oliver/developing/qt5src/ directly.

    Which means I dont have "qt-everywhere-opensource-src-5.7.0" as a Parent Folder.
    After re-unpacking the Archive and keeping the "qt-everywhere-opensource-src-5.7.0" as a Parent Folder, compilation is now running as it should.

    IMHO this is a Path finding Bug: I do the same under Windows and never have such Problems.

    What an idiotic "Error" :(
    Even after all these years, Linux has so many dumb usage Errors / Problems / Glitches etc.


  • Lifetime Qt Champion

    Hi,

    Since you gave a prefix, remove the developer-build option.

    Are you going to develop Qt ? If not then don't use the developer-build option.



  • @SGaist
    Hello.

    I am so used to use that "-developer-build" parameter and it is part of my prepared commands which I C+P to the CMD Window / Bash. I had to use it in a older Qt 5.x Version as "-prefix" got totally ignored.

    I simply never thought about it again.
    Thanks for the reminder :)

    EDIT01: Do you know by any chance how I can compile the Debug and Release Libs/Tools in one run? Or do I have to compile them after each other? "-debug-and-release" is not a valid command on Linux.


  • Lifetime Qt Champion

    Not valid ? What message did you get ?



  • @SGaist
    Configure says something like "-debug-and-release is deprecated now and works only on MacOS. You can build Release Libraries with included debug Infos".

    If I do for example "-release -debug" or "-debug -release", only the last Parameter gets set / used.

    Another Problem: I am also stuck with QtWebEngine and Python: Python2 and Python3 are installed in parallel (with Python3 as the Standard Python), and no matter what I try (i.e. setting an alias, setting an export in bash), the WebEngine config.tests only find Python 3. I will probably open another Thread about that in the WebEngine Subforum.

    I am back on Windows for now. Thanks for your time on a weekend :)


  • Lifetime Qt Champion

    Ok, I missed that one. So you can either build twice or as proposed release with debug information.

    I haven't built that module yet so I can't help you about that matter.

    You're welcome :)


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