The no-dev option is deprecated.  Use -Wno-author instead.
CMake Warning (unused-cli):
  Manually-specified variables were not used by the project:

    CMAKE_LD_FLAGS
    ECM_MKSPECS_INSTALL_DIR


I/O warning : failed to load external entity "/usr/share/kf6/kdoctools/customization/xsl/pt-BR.xml"
No "pt_br" localization of "footer-doc-comment" exists; using "en".
No "pt_br" localization of "footer-doc-feedback" exists; using "en".
No "pt_br" localization of "footer-doc-teamname" exists; using "en".
I/O warning : failed to load external entity "/usr/share/kf6/kdoctools/customization/xsl/pt-BR.xml"
No "pt_br" localization of "footer-doc-comment" exists; using "en".
No "pt_br" localization of "footer-doc-feedback" exists; using "en".
No "pt_br" localization of "footer-doc-teamname" exists; using "en".
/var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/plugins/opus/encoderopus.cpp: In member function ‘virtual long int EncoderOpus::readInit(long int)’:
/var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/plugins/opus/encoderopus.cpp:138:22: warning: ignoring return value of ‘bool QTemporaryFile::open()’, declared with attribute ‘nodiscard’ [-Wunused-result]
  138 |     d->tempFile->open();
      |     ~~~~~~~~~~~~~~~~~^~
In file included from /usr/include/qt6/QtCore/QTemporaryFile:1,
                 from /var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/plugins/opus/encoderopus.cpp:30:
/usr/include/qt6/QtCore/qtemporaryfile.h:52:32: note: declared here
   52 |     QFILE_MAYBE_NODISCARD bool open() { return open(QIODevice::ReadWrite); }
      |                                ^~~~
/var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/plugins/lame/encoderlame.cpp: In member function ‘virtual long int EncoderLame::readInit(long int)’:
/var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/plugins/lame/encoderlame.cpp:242:22: warning: ignoring return value of ‘bool QTemporaryFile::open()’, declared with attribute ‘nodiscard’ [-Wunused-result]
  242 |     d->tempFile->open();
      |     ~~~~~~~~~~~~~~~~~^~
In file included from /usr/include/qt6/QtCore/QTemporaryFile:1,
                 from /var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/plugins/lame/encoderlame.cpp:30:
/usr/include/qt6/QtCore/qtemporaryfile.h:52:32: note: declared here
   52 |     QFILE_MAYBE_NODISCARD bool open() { return open(QIODevice::ReadWrite); }
      |                                ^~~~
/var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/audiocd.cpp: In function ‘void app_dir(KIO::UDSEntry&, const QString&, size_t)’:
/var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/audiocd.cpp:571:14: warning: ‘void KIO::UDSEntry::reserve(int)’ is deprecated: Since 6.29. Use reserveStrings() and reserveNumbers() [-Wdeprecated-declarations]
  571 |     e.reserve(5);
      |     ~~~~~~~~~^~~
In file included from /usr/include/KF6/KIOCore/kio/workerbase.h:13,
                 from /usr/include/KF6/KIOCore/KIO/WorkerBase:1,
                 from /var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/audiocd.h:29,
                 from /var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/audiocd.cpp:26:
/usr/include/KF6/KIOCore/kio/udsentry.h:148:10: note: declared here
  148 |     void reserve(int size);
      |          ^~~~~~~
/var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/audiocd.cpp: In function ‘void app_file(KIO::UDSEntry&, const QString&, size_t, const QString&)’:
/var/pisi/audiocd-kio-26.08.1-77/work/audiocd-kio-26.08.1/audiocd.cpp:585:14: warning: ‘void KIO::UDSEntry::reserve(int)’ is deprecated: Since 6.29. Use reserveStrings() and reserveNumbers() [-Wdeprecated-declarations]
  585 |     e.reserve(6);
      |     ~~~~~~~~~^~~
/usr/include/KF6/KIOCore/kio/udsentry.h:148:10: note: declared here
  148 |     void reserve(int size);
      |          ^~~~~~~