/usr/include/wcslib-5.18/lin.inc is in wcslib-dev 5.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* WCSLIB 5.18 - an implementation of the FITS WCS standard.
* Copyright (C) 1995-2018, Mark Calabretta
*
* This file is part of WCSLIB.
*
* WCSLIB is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* WCSLIB is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with WCSLIB. If not, see http://www.gnu.org/licenses.
*
* Direct correspondence concerning WCSLIB to mark@calabretta.id.au
*
* Author: Mark Calabretta, Australia Telescope National Facility, CSIRO.
* http://www.atnf.csiro.au/people/Mark.Calabretta
* $Id: lin.inc,v 5.18 2018/01/10 08:32:14 mcalabre Exp $
*=======================================================================
* Functions.
EXTERNAL LINPUT, LINPTD, LINPTI, LINGET, LINGTD, LINGTI,
: LININI, LININIT, LINDIS, LINDIST, LINCPY, LINFREE,
: LINPRT, LINPERR,
: LINSET, LINP2X, LINX2P, LINWARP
INTEGER LINPUT, LINPTD, LINPTI, LINGET, LINGTD, LINGTI,
: LININI, LININIT, LINDIS, LINDIST, LINCPY, LINFREE,
: LINPRT, LINPERR,
: LINSET, LINP2X, LINX2P, LINWARP
* Length of the LINPRM data structure (INTEGER array) on 64-bit
* machines. Only needs to be 22 on 32-bit machines.
INTEGER LINLEN
PARAMETER (LINLEN = 36)
* Codes for LIN data structure elements used by LINPUT and LINGET.
INTEGER LIN_FLAG, LIN_NAXIS, LIN_CRPIX, LIN_PC, LIN_CDELT,
: LIN_DISPRE, LIN_DISSEQ
PARAMETER (LIN_FLAG = 100)
PARAMETER (LIN_NAXIS = 101)
PARAMETER (LIN_CRPIX = 102)
PARAMETER (LIN_PC = 103)
PARAMETER (LIN_CDELT = 104)
PARAMETER (LIN_DISPRE = 105)
PARAMETER (LIN_DISSEQ = 106)
* Codes for LIN data structure elements used by LINGET (only).
INTEGER LIN_PIXIMG, LIN_IMGPIX, LIN_INAXIS, LIN_UNITY,
: LIN_AFFINE, LIN_SIMPLE, LIN_ERR
PARAMETER (LIN_PIXIMG = 200)
PARAMETER (LIN_IMGPIX = 201)
PARAMETER (LIN_INAXIS = 202)
PARAMETER (LIN_UNITY = 203)
PARAMETER (LIN_AFFINE = 204)
PARAMETER (LIN_SIMPLE = 205)
PARAMETER (LIN_ERR = 206)
* Error codes and messages.
INTEGER LINERR_SUCCESS, LINERR_NULL_POINTER, LINERR_MEMORY,
: LINERR_SINGULAR_MTX, LINERR_DISTORT_INIT,
: LINERR_DISTORT, LINERR_DEDISTORT
PARAMETER (LINERR_SUCCESS = 0)
PARAMETER (LINERR_NULL_POINTER = 1)
PARAMETER (LINERR_MEMORY = 2)
PARAMETER (LINERR_SINGULAR_MTX = 3)
PARAMETER (LINERR_DISTORT_INIT = 4)
PARAMETER (LINERR_DISTORT = 5)
PARAMETER (LINERR_DEDISTORT = 6)
CHARACTER LIN_ERRMSG(0:6)*80
COMMON /LIN_DATA/ LIN_ERRMSG
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