[Debian-astro-maintainers] Bug#966432: wcslib test failures with GCC 10

[Matthias Klose]

Package: src:wcslib
Version: 7.3+ds-2
Severity: serious
Tags: sid bullseye

gcc-defaults triggers test failures for wcslib, both on amd64 and arm64:

autopkgtest [01:49:15]: test wcslib-test-Fortran: [-----------------------
+++++ Test: tlin +++++
Testing WCSLIB linear transformation routines (tlin.f)
------------------------------------------------------

PIX 1:  303.00000000  265.00000000  112.40000000  144.50000000   28.20000000
PIX 2:   19.00000000   57.00000000    2.00000000   15.00000000   42.00000000

IMG 1:   61.80000000   74.75000000  164.56000000   74.25000000  152.32000000
IMG 2: -403.80000000 -730.25000000 -210.80000000 -508.50000000  229.60000000

PIX 1:  303.00000000  265.00000000  112.40000000  144.50000000   28.20000000
PIX 2:   19.00000000   57.00000000    2.00000000   15.00000000   42.00000000

LINP2X/LINX2P: Maximum closure residual = 5.7E-14 pixel.

PASS: All closure residuals are within reporting tolerance.
tdis1.f:151:37:

  143 |       STATUS = WCSGTI (WCS, WCS_LIN, LIN)
      |                                     2
......
  151 |       STATUS = WCSGTI (WCS, WCS_LNG, ILNG)
      |                                     1
Error: Rank mismatch between actual argument at (1) and actual argument at (2)
(rank-1 and scalar)
tdis1.f:152:37:

  143 |       STATUS = WCSGTI (WCS, WCS_LIN, LIN)
      |                                     2
......
  152 |       STATUS = WCSGTI (WCS, WCS_LAT, ILAT)
      |                                     1
Error: Rank mismatch between actual argument at (1) and actual argument at (2)
(rank-1 and scalar)