/usr/include/casacore/fits/FITS/ is in casacore-dev 2.2.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/casacore/fits/FITS/BasicFITS.h
/usr/include/casacore/fits/FITS/BinTable.h
/usr/include/casacore/fits/FITS/CopyRecord.h
/usr/include/casacore/fits/FITS/FITS2.h
/usr/include/casacore/fits/FITS/FITS2.tcc
/usr/include/casacore/fits/FITS/FITSDateUtil.h
/usr/include/casacore/fits/FITS/FITSError.h
/usr/include/casacore/fits/FITS/FITSFieldCopier.h
/usr/include/casacore/fits/FITS/FITSHistoryUtil.h
/usr/include/casacore/fits/FITS/FITSKeywordUtil.h
/usr/include/casacore/fits/FITS/FITSMultiTable.h
/usr/include/casacore/fits/FITS/FITSReader.h
/usr/include/casacore/fits/FITS/FITSSpectralUtil.h
/usr/include/casacore/fits/FITS/FITSTable.h
/usr/include/casacore/fits/FITS/FITSTimedTable.h
/usr/include/casacore/fits/FITS/SDFITSTable.h
/usr/include/casacore/fits/FITS/blockio.h
/usr/include/casacore/fits/FITS/fits.h
/usr/include/casacore/fits/FITS/fitsio.h
/usr/include/casacore/fits/FITS/hdu.h
/usr/include/casacore/fits/FITS/hdu.tcc