/usr/include/okteta/ is in okteta-dev 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/okteta/abstractbytearraycolumnrenderer.h
/usr/include/okteta/abstractbytearraymodel.h
/usr/include/okteta/abstractbytearrayview.h
/usr/include/okteta/abstractcolumnrenderer.h
/usr/include/okteta/abstractcolumnstylist.h
/usr/include/okteta/address.h
/usr/include/okteta/addressrange.h
/usr/include/okteta/arraychangemetrics.h
/usr/include/okteta/arraychangemetricslist.h
/usr/include/okteta/bookmark.h
/usr/include/okteta/bookmarkable.h
/usr/include/okteta/bookmarksconstiterator.h
/usr/include/okteta/bookmarksconstiteratoradapter.h
/usr/include/okteta/bordercolumnrenderer.h
/usr/include/okteta/byte.h
/usr/include/okteta/bytearraychange.h
/usr/include/okteta/bytearraycolumnview.h
/usr/include/okteta/bytearraymodel.h
/usr/include/okteta/bytearrayrowcolumnrenderer.h
/usr/include/okteta/bytearrayrowview.h
/usr/include/okteta/bytearraytablelayout.h
/usr/include/okteta/bytearraytableranges.h
/usr/include/okteta/changehistory.h
/usr/include/okteta/changesdescribable.h
/usr/include/okteta/character.h
/usr/include/okteta/charbytearraycolumnrenderer.h
/usr/include/okteta/charcodec.h
/usr/include/okteta/columnsview.h
/usr/include/okteta/coord.h
/usr/include/okteta/coordrange.h
/usr/include/okteta/coordrangelist.h
/usr/include/okteta/kadds.h
/usr/include/okteta/line.h
/usr/include/okteta/lineposition.h
/usr/include/okteta/linepositionrange.h
/usr/include/okteta/linerange.h
/usr/include/okteta/numberrange.h
/usr/include/okteta/offsetcolumnrenderer.h
/usr/include/okteta/offsetformat.h
/usr/include/okteta/oktetacore.h
/usr/include/okteta/oktetacore_export.h
/usr/include/okteta/oktetagui.h
/usr/include/okteta/oktetagui_export.h
/usr/include/okteta/piecetablebytearraymodel.h
/usr/include/okteta/range.h
/usr/include/okteta/selection.h
/usr/include/okteta/size.h
/usr/include/okteta/valuebytearraycolumnrenderer.h
/usr/include/okteta/valuecodec.h
/usr/include/okteta/versionable.h
/usr/include/okteta/widgetcolumnstylist.h
/usr/include/okteta/wordbytearrayservice.h