Created attachment 812992 [details] Trivial QT app causes problem with -Werror Inconsistent #defines leads to -Werror failure in "qtcore", "qtgui" Global USE "jpeg" is OFF, curiously "gtgui" also has local "jpeg" Similar to bug 751349 but user should be able to set -Werror Trivial QT app attached shows problem: g++ -fPIC -Werror $(pkg-config --cflags --libs Qt5Widgets) qtgui.cpp In file included from /usr/include/qt5/QtGui/qtguiglobal.h:44, from /usr/include/qt5/QtWidgets/qtwidgetsglobal.h:43, from /usr/include/qt5/QtWidgets/qapplication.h:43, from /usr/include/qt5/QtWidgets/QApplication:1, from qtgui.cpp:1: /usr/include/qt5/QtGui/qtgui-config.h:25: error: "QT_NO_IMAGEFORMAT_JPEG" redefined [-Werror] 25 | #define QT_NO_IMAGEFORMAT_JPEG true | In file included from /usr/include/qt5/QtCore/qconfig.h:1, from /usr/include/qt5/QtCore/qglobal.h:66, from /usr/include/qt5/QtGui/qtguiglobal.h:43, from /usr/include/qt5/QtWidgets/qtwidgetsglobal.h:43, from /usr/include/qt5/QtWidgets/qapplication.h:43, from /usr/include/qt5/QtWidgets/QApplication:1, from qtgui.cpp:1: /usr/include/qt5/Gentoo/gentoo-qconfig.h:8: note: this is the location of the previous definition 8 | #define QT_NO_IMAGEFORMAT_JPEG | cc1plus: all warnings being treated as errors
Created attachment 812995 [details] Host emerge --info