[Debian-astro-maintainers] Bug#919520: cpl FTCBFS: AC_RUN_IFELSE for cfitsio

[Ole Streicher]

Hi Helmut,

thank you for the bug report. I think the reason for the floating point
version numbering is that cfitsio has a funny version numbering that
really treats (treated?) the version number as float (normally with two
fractional digits, however). From the changes.txt:

Version 3.20 - 31 August 2009
Version 3.181 (BETA) - 12 May 2009
Version 3.18 (BETA) - 10 April 2009

That *may* have canged with the introduction of CFITSIO_MAJOR and
CFITSIO_MINOR in version 3.26; however traditionally many people still
refer to the traditional floating point approach -- also the Debian
package uses this. I will however contact (CPL) upstream with your
suggestion.

Best regards

Ole