From mark at calabretta.id.au  Sun Sep 27 04:15:10 2026
From: mark at calabretta.id.au (Mark Calabretta)
Date: Sun, 27 Sep 2026 18:15:10 +1000
Subject: [fitsbits] WCSLIB 8.10 released {External}
Message-ID: <20260927181510.52abaa3f@horus>

Greetings,

WCSLIB 8.9 is now available from

  https://www.atnf.csiro.au/computing/software/wcs/wcslib-releases

This release fixes a bug in wcsprintf() that may be triggered if too
many messages are generated, as described below.

Mark Calabretta



WCSLIB version 8.10 (2026/09/27)
--------------------------------

* C library

  - In wcsprintf() and wcsfprintf(), use the return value from
    vsnprintf() itself to decide whether to grow the output buffer,
    rather than relying on all messages being within a certain length
    (formerly 128 bytes).  Some messages from wcspih() did exceed that
    length and could cause the buffer to be overrun, thereby corrupting
    the heap and causing a segv.  The problem, which arose in Astropy,
    was diagnosed and reported by Thomas Robitaille with patch.

  - In szpx2s(), relaxed the bounds checking tolerance slightly to
    accomodate spurious non-closures reported by test program tprj1 on
    some 32-bit machines.  Reported by Ole Streicher (Debian
    maintainer).

  - In the C test suite, modified tprj1 to handle status returns from
    the projection routines properly.  With diligent status reporting,
    it was found necessary to change the latitude range of the SZP test
    appropriately.

* Fortran wrappers

  - In the Fortran test suite, modified tprj1 to match the C version.

* User manual

  - Documentation generation moved to Doxygen 1.18.0 (was 1.17.0).
    While the Doxygen bug reported in WCSLIB 8.5 has now been fixed,
    the makefile patch has been left in place for the time being.