Requiored for astropy 7.2
- Update to 8.5
## C library
* In linp2x(), quarantine NaN elements of the pixel coordinate
vector from infecting non-NaN elements in the case where the
PCij matrix is diagonal (noting that zero * NaN = NaN).
Likewise in linx2p(). Reported by Thomas Robitaille with patch.
* Quelled nuisance compiler warnings in wcspih() and wcsbth().
- WCSLIB version 8.4
## C library
* Fixed some problems in wcs_chksum() and changed
wcs_fletcher32() to conform to the standard computation.
* New test program, twcs_pthread.
- WCSLIB version 8.3
## C library
* Until now, wcsset() always operated unconditionally - the
wcsprm struct was set or reset regardless of its current state.
Likewise the various *set() functions for the other structs.
However, in some situations, particularly in threaded
applications, it is desirable to have wcsset(), etc., check the
state of the struct and return immediately if it has already
been set. This may now be accomplished by setting wcsprm::flag
== 1 (instead of 0) before calling wcsset(). Likewise for the
other structs. This sets a "bypass" flag within the struct
itself.
* A new function, wcsenq(), queries the state of the wcsprm
struct, specifically whether WCSLIB is managing its memory,
whether the struct has been set, whether or not it is in bypass
mode, and whether it is self-consistent. There are
corresponding functions for the other structs: celenq(),
disenq(), linenq(), prjenq(), spcenq(), and tabenq(). Please
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Required by astropy v6.0
- Update to 8.2.2
* In prj.c, a number of variables with global scope that are only
used internally were declared static to avoid namespace
conflicts arising in Link Time Optimization (LTO) builds of the
Rwcs wrappers. This is a patch release as it does not affect
the library itself other than in localising some symbols that
were never meant to be global. Reported by Rodrigo Carrizo with
patch.
Likewise for an internally used helper function, prjoff().
Likewise for a handful of variables in cel.c, dis.c, lin.c,
tab.c, wcs.c, wcsfix.c, and wcshdr.c.
- WCSLIB version 8.2
* In wcshdo(), fixed character buffer overflows in the comment
string for the longitude and latitude axes triggered by some
projections, and also the formatting for generic coordinate
systems. Reported by Shu Niu.
- WCSLIB version 8.1
* Changes in the contents of the auxprm struct (in 8.0 beta)
necessitated incrementing the major version number from 7 to 8,
i.e. the ABI changed. Took the opportunity for minor tweaks to
wcsprm and disprm.
## C library
* In disprm, changed the order of maxdis and totdis to ensure
correct alignment of doubles on 32-bit machines.
## Fortran wrappers
* Match changes to disprm in the C library.
* In the Fortran test suite, inserted a brief pause between plots
in tprj2, tspc, and tpih2, which have long been a blur.
## PGSBOX
* Quell innocuous compiler warnings from gfortran 12.1.0.
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- update to 7.3.1:
* There are no functional changes in this release.
- Changed all C code, including within the flex sources, Fortran and
PGSBOX wrappers, and test suite, to use C99 style commenting (i.e.
using //), excluding the header prologues used to generate the user
manual.
- Documentation generation moved to doxygen 1.8.19 (was 1.8.18).
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- Update to version 6.4 (2019/08/15):
* Installation
- The rule change to the Fortran makefile in v6.3 to add getwcstab_f.o
to the sharable library causes it to depend on CFITSIO to resolve
fits_get_wcstab(). Hence backed out of that change.
* User manual
- Documentation generation moved to doxygen 1.8.16 (was 1.8.14).
- Update to version 6.3 (2019/07/12)
* C library
- Fixed the Polynomial and TPD distortions so that, as stipulated in
WCS Paper IV, they are now considered to return an additive
correction to be applied to the given coordinates, rather than the
corrected coordinates themselves.
Added a new subsection to the prologue of dis.h entitled 'Historical
idiosyncrasies', which discusses this issue and other vagueries.
Amended components of the test suite accordingly: SIPTPV.keyrec,
TPV7.keyrec, and tdis1.c.
- Fixed memory leaks and other potential problems that arose in the
wcserr system consequent on changes made in release 6.1.
Memory allocated by wcsfixi() for messages in the array of wcserr
structs must now be freed by the caller. Amended twcsfix.c
accordingly.
- Plugged memory leaks arising in disset().
- New function wcsdealloc() provided to free memory allocated within
certain WCSLIB routines. Suggested by David Motl.
- Eliminated a swag of inconsequential compiler warnings, particularly
those emanating from the flex sources.
* Validation
- The library, Fortran wrappers, utilities, and test programs now pass
runtime analysis using -fsanitize=address and -fsanitize=undefined
in gcc 8.3.0, in addition to valgrind. Also compile-time strictures
using -std=c99, -pedantic, -Wall, -Wextra, and -DFORTIFY_SOURCE=2.
Prompted by feedback from Ole Streicher.
* Installation
- The non-graphical tests now run reliably in parallel builds
(make CHECK=nopgplot -j8 check). Requested by Mohammed Akhlaghi.
The graphical tests can also be run in parallel, but as PGPLOT can
only handle one stream at a time, some graphics are likely to be
lost. Nevertheless, it is a useful option, especially with runtime
analysis via -fsanitize=address, etc.
- As CFITSIO doesn't provide a Fortran wrapper for fits_read_wcstab(),
getwcstab_f.o is now always included in the WCSLIB object library
and sharable library if CFITSIO is available (and the WCSLIB Fortran
wrappers are required). Use 'configure --without-cfitsio' to
defeat this.
- Tidied up some aspects of the build where CFITSIO is not available.
* User manual
- Fixed minor formatting problems in dis.h.
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