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  1. Qt Creator
  2. QTCREATORBUG-11431

QtCreator does not compile on CentOS 6 due to -Werror in a .pro file.

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3: Somewhat important
    • Resolution: Done
    • Affects Version/s: Qt Creator 3.0.0
    • Fix Version/s: Qt Creator 3.1.0-beta
    • Component/s: Building Qt Creator
    • Labels:
      None
    • Environment:
      CentOS 6.5 with Qt 5.2.0 built from tarball source.
    • Commits:
      8a8092912b23aef54b9d6c9f02075a4057335f19

      Description

      Building QtCreator from the tarball source fails due to the following error:

      make[3]: Entering directory `/install/build/qt-creator-3.0.0_CentOS_6.5/src/shared/qbs/src/lib'
      g++ -c -pipe -Werror -O2 -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC -DQT_CREATOR -DQML_BUILD_STATIC_LIB -DQBS_LIBRARY -DSRCDIR=\"/install/src/qt-creator-opensource-src-3.0.0/src/shared/qbs/src/lib\" -DQBS_VERSION=\"1.1.1\" -DQT_NO_DEBUG -DQT_XML_LIB -DQT_SCRIPT_LIB -DQT_CORE_LIB -I/usr/local/Qt-5.2.0/mkspecs/linux-g++ -I/install/src/qt-creator-opensource-src-3.0.0/src/shared/qbs/src/lib -I/install/src/qt-creator-opensource-src-3.0.0/src/shared/qbs/src/lib -I/install/src/qt-creator-opensource-src-3.0.0/src/shared/qbs/src -I/usr/local/Qt-5.2.0/include -I/usr/local/Qt-5.2.0/include/QtXml -I/usr/local/Qt-5.2.0/include/QtScript -I/usr/local/Qt-5.2.0/include/QtCore -I. -I. -o project.o /install/src/qt-creator-opensource-src-3.0.0/src/shared/qbs/src/lib/api/project.cpp
      cc1plus: warnings being treated as errors
      In file included from /usr/local/Qt-5.2.0/include/QtCore/qobject.h:56,
                       from /usr/local/Qt-5.2.0/include/QtCore/qsharedpointer_impl.h:65,
                       from /usr/local/Qt-5.2.0/include/QtCore/qsharedpointer.h:50,
                       from /usr/local/Qt-5.2.0/include/QtCore/QSharedPointer:1,
                       from /install/src/qt-creator-opensource-src-3.0.0/src/shared/qbs/src/lib/api/../language/forward_decls.h:32,
                       from /install/src/qt-creator-opensource-src-3.0.0/src/shared/qbs/src/lib/api/project.h:32,
                       from /install/src/qt-creator-opensource-src-3.0.0/src/shared/qbs/src/lib/api/project.cpp:29:
      /usr/local/Qt-5.2.0/include/QtCore/qbytearray.h: In function ‘int qRegisterNormalizedMetaType(const QByteArray&, T*, typename QtPrivate::MetaTypeDefinedHelper<T, (QMetaTypeId2::Defined && (! QMetaTypeId2::IsBuiltIn))>::DefinedType) [with T = qbs::Internal::InternalJob*]’:
      /usr/local/Qt-5.2.0/include/QtCore/qbytearray.h:446: error: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
      /usr/local/Qt-5.2.0/include/QtCore/qbytearray.h:451: error: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
      /usr/local/Qt-5.2.0/include/QtCore/qarraydata.h:104: error: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
      /usr/local/Qt-5.2.0/include/QtCore/qgenericatomic.h:96: error: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
      /usr/local/Qt-5.2.0/include/QtCore/qbytearray.h:408: note: initialized from here
      make[3]: *** [project.o] Error 1
      make[3]: Leaving directory `/install/build/qt-creator-3.0.0_CentOS_6.5/src/shared/qbs/src/lib'
      

      The error seems to be caused by the -Werror flag. This flag is set in the file src/shared/qbs/src/lib/lib.pro in line 26. When the flag is commented out in this file, the compilation is successful.

      For me it is unclear why the flag is set there. Interestingly the directory src/shared/qbs does not exist in the code on qt.gitorious.org.

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            Assignee:
            kandeler Christian Kandeler
            Reporter:
            sebastian42 Sebastian Ihle
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              Dates

              Created:
              Updated:
              Resolved:

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