- Update to version 4.2.0:
  - This release includes patches to security vulnerabilities.
    We strongly encourage this upgrade, particularly for those
    running CFITSIO in web accessible applications.
  - Fix to fits_read_key function, which was failing to properly
    read keywords declared type TUINT on compilers where
    sizeof(int) = sizeof(long).
  - Added new functions fits_read_cols and fits_write_cols to
    efficiently read or write multiple columns in a single
    function call
  - Added new function fits_copy_selrows to copy only selected
    rows, such as the selected rows returned by fits_find_rows
  - Added new calculator functions ERF(X), ERFC(X) and GAMMA(X),
    which are mathematical special functions of the same name
  - Added new calculator function GTIFIND() which reports which
    GTI row brackets a given time sample
  - Added new calculator functions which operate upon vector table
    values NAXIS(V), NAXES(V,n), ELEMENTNUM(V) and AXISELEM(V,n),
    and ARRAY(X,d) which promotes scalar X to a vector or array
    with given dimensions.
  - The CFITSIO histogramming code now handles binning by any
    arbitrary calculator expression rather than just a column name.
    Both the binned columns as well as the optional weights may be
    calculator expressions, enclosed in parentheses. 
  - Binning of vector columns or expressions is now supported, as
    long as all binned inputs (as well as the optional weighting)
    have the same vector dimensions. Binning of variable-length
    columns remains unsupported.
  - A bug that caused histogram weights from columns that are null
    values to be tallied along with non-null values has been fixed.
  - The CFITSIO calculator and histogramming functionality is now
    fully reentrant and does not require multithreading interlocks.
  - A long-standing segmentation fault bug in the histogramming
    code related to binning any value using the "reciprocal" /XXXX
    notation has been fixed.
  - Added mutex locks for thread safety in ftgiou and ftfiou.
  - Added several Fortran wrappers to support image read/write when
    'fpixel' and 'nelements' are 8-byte integers.
  - Fixed bug which was adding spaces to some cases of long string
    key value output.
- Enable SSE2 on x86_64
- Package fitscopy util
- Enable bzip2 support

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