Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-64820

Qt module builds fail with older GCC versions

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 5.9.3, 5.10.0 RC
    • Fix Version/s: 5.9.4
    • Component/s: Packaging & Installer
    • Labels:
      None

      Description

      The Qt binaries installed from OnlineSDK fail to build Qt modules with GCC version that is less than 6.

      The GCC version used to build Qt is stored in mkspec/qconfig.pri, and currently with 5.10.0 it's 6.3.1

      QT_GCC_MAJOR_VERSION = 6
      QT_GCC_MINOR_VERSION = 3
      QT_GCC_PATCH_VERSION = 1
      

      When that Qt is used to build any Qt module with GCC less than 6, it fails because qmake still thinks it using GCC 6 and will include compiler options that do not work with GCC5.

      g++ -c -include .pch/Qt5Simulator -pipe -O2 -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -D_REENTRANT -fPIC -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_SIMULATOR_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DGIT_HASH=\"e656f345b3dbca1234b22aa6b5b5dbf7099d1b6e-dirty\" -DGIT_VERSION=\"1.0.8\" -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_NETWORK_LIB -DQT_CORE_LIB -I. -I../../include -I../../include/QtSimulator -I../../include/QtSimulator/5.8.0 -I../../include/QtSimulator/5.8.0/QtSimulator -I/home/sapiippo/Qt/5.10.0/gcc_64/include -I/home/sapiippo/Qt/5.10.0/gcc_64/include/QtNetwork -I/home/sapiippo/Qt/5.10.0/gcc_64/include/QtCore -I.moc -I/home/sapiippo/Qt/5.10.0/gcc_64/mkspecs/linux-g++ -o .obj/qsimulatorguidata.o qsimulatorguidata.cpp
      g++: error: unrecognized command line option ‘-Wshift-overflow=2’
      g++: error: unrecognized command line option ‘-Wduplicated-cond’
      
      gcc version 5.4.0
      

        Attachments

          Issue Links

          For Gerrit Dashboard: QTBUG-64820
          # Subject Branch Project Status CR V

            Activity

              People

              • Assignee:
                releaseteam Qt Release Team
                Reporter:
                sapiippo Samuli Piippo
              • Votes:
                0 Vote for this issue
                Watchers:
                14 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:

                  Gerrit Reviews

                  There are no open Gerrit changes