CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_LD_FLAGS
    ECM_MKSPECS_INSTALL_DIR


/var/pisi/kdegraphics-mobipocket-25.12.0-63/work/kdegraphics-mobipocket-25.12.0/tools/mobidump.cpp: In function ‘int main(int, char**)’:
/var/pisi/kdegraphics-mobipocket-25.12.0-63/work/kdegraphics-mobipocket-25.12.0/tools/mobidump.cpp:37:14: warning: ignoring return value of ‘virtual bool QFile::open(QIODeviceBase::OpenMode)’, declared with attribute ‘nodiscard’ [-Wunused-result]
   37 |     file.open(QFile::ReadOnly);
      |     ~~~~~~~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/qt6/QtCore/qfileinfo.h:9,
                 from /usr/include/qt6/QtCore/QFileInfo:1,
                 from /var/pisi/kdegraphics-mobipocket-25.12.0-63/work/kdegraphics-mobipocket-25.12.0/tools/mobidump.cpp:3:
/usr/include/qt6/QtCore/qfile.h:291:32: note: declared here
  291 |     QFILE_MAYBE_NODISCARD bool open(OpenMode flags) override;
      |                                ^~~~