<<< metadata_duplicate_useflag_description >>>
  dev-qt/qtcore|systemd|qt@gentoo.org
<<< open bugs >>>
  https://bugs.gentoo.org/610782 dev-qt/qtcore:5_-_qconfig.pri_stores_compiler_settings
  https://bugs.gentoo.org/633930 dev-qt/qtcore-5.9.2_with_GCC_7/LTO_fails_to_compile_with_&quot;undefined_reference_to_'QStringList::~QStringList()'&quot;
  https://bugs.gentoo.org/709384 dev-qt/qtcore-5.14.1-r1_-_building_qt_modules_from_code.qt.io/cgit/_fail_with_x86_64-pc-linux-gnu-ar:_invalid_option_--_'.'
  https://bugs.gentoo.org/711860 dev-qt/qtcore:_make_fails_to_link_static_library_if_qmake_project_with_load(qt_helper_lib)_is_used
  https://bugs.gentoo.org/713850 dev-qt/qtcore-5.14.1-r1_build_error_with_clang+LTO
  https://bugs.gentoo.org/719972 dev-qt/qtcore-5.14.2_failed_to_emerge
  https://bugs.gentoo.org/736908 dev-qt/qtcore_fail_to_cross_compile_with:_configure:_line_847:_/usr/armv7a-unknown-linux-gnueabihf/tmp/portage/dev-qt/qtcore-5.14.2/work/qtbase-everywhere-src-5.14.2_build/bin/qmake:_cannot_execute_binary_file:_Exec_format_error
  https://bugs.gentoo.org/773199 dev-qt/qtcore:_Build_uses_-msse2_-mfpmath=sse_on_machines_without_sse2
  https://bugs.gentoo.org/810694 net-p2p/qbittorrent[webui]_w/_&gt;=dev-qt/qtcore-5.15.2-r10:_Web_UI_offers_to_download_html_file_instead_of_opening_it
  https://bugs.gentoo.org/864937 dev-qt/qtcore-5.15.5-r2:_Document(?)_symlinks_for_Qt_support_executables
  https://bugs.gentoo.org/871957 dev-qt/qtcore:_Configure_anomaly_between_&quot;qtcore&quot;_and_&quot;qtgui&quot;_causes_compile_failure_for_custom_program_building
  https://bugs.gentoo.org/595574 dev-qt/qtwebengine_checks_GCC_version_based_on_what_dev-qt/qtcore_was_built_with
  https://bugs.gentoo.org/649420 dev-qt/qtcore:_CXX,_CXXFLAGS,_LDFLAGS_not_fully_respected
  https://bugs.gentoo.org/759154 dev-qt/qtcore-5.15.2:_ERROR:_Feature_'system-doubleconversion'_was_enabled,_but_the_pre-condition_'features.doubleconversion_&amp;&amp;_libs.doubleconversion'_failed.
  https://bugs.gentoo.org/833583 &lt;dev-qt/qtcore-5.15.3:_QProcess_path_vulnerability
  https://bugs.gentoo.org/838970 dev-qt/qtcore-6.3.0_version_bump