编译Qbittorrent的时候出现：
cd src/ && ( test -e Makefile || /usr/lib64/qt5/bin/qmake -o Makefile /home/sipl/qBittorrent-release-4.1.9/src/src.pro QMAKE_LRELEASE= ) && make -f Makefile make[1]: Entering directory `/home/sipl/qBittorrent-release-4.1.9/src' compiling app/qtsingleapplication/qtsinglecoreapplication.cpp compiling app/qtsingleapplication/qtlocalpeer.cpp compiling app/application.cpp compiling app/cmdoptions.cpp compiling app/filelogger.cpp compiling app/main.cpp compiling base/asyncfilestorage.cpp compiling base/bittorrent/filepriority.cpp compiling base/bittorrent/infohash.cpp compiling base/bittorrent/magneturi.cpp compiling base/bittorrent/peerinfo.cpp compiling base/bittorrent/private/bandwidthscheduler.cpp compiling base/bittorrent/private/filterparserthread.cpp compiling base/bittorrent/private/resumedatasavingmanager.cpp compiling base/bittorrent/private/speedmonitor.cpp compiling base/bittorrent/private/statistics.cpp compiling base/bittorrent/session.cpp compiling base/bittorrent/torrentcreatorthread.cpp base/bittorrent/session.cpp: In member function ‘void BitTorrent::Session::setTempPathEnabled(bool)’: base/bittorrent/session.cpp:615:63: error: call of overloaded ‘asConst(QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&)’ is ambiguous for (TorrentHandle *const torrent : asConst(m_torrents)) ^ base/bittorrent/session.cpp:615:63: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&; typename std::add_const<_Tp>::type = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘void BitTorrent::Session::setAppendExtensionEnabled(bool)’: base/bittorrent/session.cpp:629:63: error: call of overloaded ‘asConst(QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&)’ is ambiguous for (TorrentHandle *const torrent : asConst(m_torrents)) ^ base/bittorrent/session.cpp:629:63: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&; typename std::add_const<_Tp>::type = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘bool BitTorrent::Session::deleteTorrent(const QString&, bool)’: base/bittorrent/session.cpp:1942:65: error: call of overloaded ‘asConst(QStringList&)’ is ambiguous for (const QString &unwantedFile : asConst(unwantedFiles)) { ^ base/bittorrent/session.cpp:1942:65: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QStringList; typename std::add_const<_Tp>::type = const QStringList] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QStringList&; typename std::add_const<_Tp>::type = QStringList&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘void BitTorrent::Session::generateResumeData(bool)’: base/bittorrent/session.cpp:2389:59: error: call of overloaded ‘asConst(QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&)’ is ambiguous for (TorrentHandle *const torrent : asConst(m_torrents)) { ^ base/bittorrent/session.cpp:2389:59: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&; typename std::add_const<_Tp>::type = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘void BitTorrent::Session::saveTorrentsQueue()’: base/bittorrent/session.cpp:2448:45: error: call of overloaded ‘asConst(QMap<int, QString>&)’ is ambiguous for (const QString &hash : asConst(queue)) ^ base/bittorrent/session.cpp:2448:45: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QMap<int, QString>; typename std::add_const<_Tp>::type = const QMap<int, QString>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QMap<int, QString>&; typename std::add_const<_Tp>::type = QMap<int, QString>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘void BitTorrent::Session::setTempPath(QString)’: base/bittorrent/session.cpp:2484:59: error: call of overloaded ‘asConst(QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&)’ is ambiguous for (TorrentHandle *const torrent : asConst(m_torrents)) ^ base/bittorrent/session.cpp:2484:59: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&; typename std::add_const<_Tp>::type = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘bool BitTorrent::Session::hasPerTorrentRatioLimit() const’: base/bittorrent/session.cpp:3809:59: error: call of overloaded ‘asConst(const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&)’ is ambiguous for (TorrentHandle *const torrent : asConst(m_torrents)) ^ base/bittorrent/session.cpp:3809:59: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘bool BitTorrent::Session::hasPerTorrentSeedingTimeLimit() const’: base/bittorrent/session.cpp:3817:59: error: call of overloaded ‘asConst(const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&)’ is ambiguous for (TorrentHandle *const torrent : asConst(m_torrents)) ^ base/bittorrent/session.cpp:3817:59: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘void BitTorrent::Session::startUpTorrents()’: base/bittorrent/session.cpp:3961:69: error: call of overloaded ‘asConst(QStringList&)’ is ambiguous for (const QString &fastresumeName : asConst(fastresumes)) { ^ base/bittorrent/session.cpp:3961:69: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QStringList; typename std::add_const<_Tp>::type = const QStringList] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QStringList&; typename std::add_const<_Tp>::type = QStringList&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp:4000:87: error: call of overloaded ‘asConst(QMap<int, BitTorrent::Session::startUpTorrents()::TorrentResumeData>&)’ is ambiguous for (const TorrentResumeData &torrentResumeData : asConst(queuedResumeData)) ^ base/bittorrent/session.cpp:4000:87: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QMap<int, BitTorrent::Session::startUpTorrents()::TorrentResumeData>; typename std::add_const<_Tp>::type = const QMap<int, BitTorrent::Session::startUpTorrents()::TorrentResumeData>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QMap<int, BitTorrent::Session::startUpTorrents()::TorrentResumeData>&; typename std::add_const<_Tp>::type = QMap<int, BitTorrent::Session::startUpTorrents()::TorrentResumeData>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp:4022:61: error: call of overloaded ‘asConst(QStringList&)’ is ambiguous for (const QString &fastresumeName : asConst(fastresumes)) { ^ base/bittorrent/session.cpp:4022:61: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QStringList; typename std::add_const<_Tp>::type = const QStringList] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QStringList&; typename std::add_const<_Tp>::type = QStringList&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/session.cpp: In member function ‘void BitTorrent::Session::handleStateUpdateAlert(libtorrent::state_update_alert*)’: base/bittorrent/session.cpp:4622:59: error: call of overloaded ‘asConst(QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&)’ is ambiguous for (TorrentHandle *const torrent : asConst(m_torrents)) { ^ base/bittorrent/session.cpp:4622:59: note: candidates are: In file included from base/bittorrent/session.cpp:73:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>; typename std::add_const<_Tp>::type = const QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&; typename std::add_const<_Tp>::type = QHash<BitTorrent::InfoHash, BitTorrent::TorrentHandle*>&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ make[1]: *** [session.o] Error 1 make[1]: *** Waiting for unfinished jobs.... base/bittorrent/torrentcreatorthread.cpp: In member function ‘virtual void BitTorrent::TorrentCreatorThread::run()’: base/bittorrent/torrentcreatorthread.cpp:113:48: error: call of overloaded ‘asConst(QStringList&)’ is ambiguous for (const auto &dir : asConst(dirs)) { ^ base/bittorrent/torrentcreatorthread.cpp:113:48: note: candidates are: In file included from base/bittorrent/torrentcreatorthread.cpp:45:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QStringList; typename std::add_const<_Tp>::type = const QStringList] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QStringList&; typename std::add_const<_Tp>::type = QStringList&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/torrentcreatorthread.cpp:129:58: error: call of overloaded ‘asConst(QStringList&)’ is ambiguous for (const auto &fileName : asConst(fileNames)) ^ base/bittorrent/torrentcreatorthread.cpp:129:58: note: candidates are: In file included from base/bittorrent/torrentcreatorthread.cpp:45:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QStringList; typename std::add_const<_Tp>::type = const QStringList] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QStringList&; typename std::add_const<_Tp>::type = QStringList&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/torrentcreatorthread.cpp:144:54: error: call of overloaded ‘asConst(QStringList&)’ is ambiguous for (QString seed : asConst(m_params.urlSeeds)) { ^ base/bittorrent/torrentcreatorthread.cpp:144:54: note: candidates are: In file included from base/bittorrent/torrentcreatorthread.cpp:45:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QStringList; typename std::add_const<_Tp>::type = const QStringList] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QStringList&; typename std::add_const<_Tp>::type = QStringList&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ base/bittorrent/torrentcreatorthread.cpp:151:64: error: call of overloaded ‘asConst(QStringList&)’ is ambiguous for (const QString &tracker : asConst(m_params.trackers)) { ^ base/bittorrent/torrentcreatorthread.cpp:151:64: note: candidates are: In file included from base/bittorrent/torrentcreatorthread.cpp:45:0: ./base/global.h:38:45: note: constexpr typename std::add_const<_Tp>::type& asConst(T&) [with T = QStringList; typename std::add_const<_Tp>::type = const QStringList] constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; } ^ ./base/global.h:42:44: note: constexpr typename std::add_const<_Tp>::type asConst(T&&) [with T = QStringList&; typename std::add_const<_Tp>::type = QStringList&] constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); } ^ make[1]: *** [torrentcreatorthread.o] Error 1 make[1]: Leaving directory `/home/sipl/qBittorrent-release-4.1.9/src' make: *** [sub-src-make_first] Error 2
这是gcc版本的问题，注意使用gcc -v查看下是不是对应的。
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