/usr/include/octave-4.0.0/octave/sysdir.h is in liboctave-dev 4.0.0-3ubuntu9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | /*
Copyright (C) 1995-2015 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
Octave 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>.
*/
#if !defined (octave_sysdir_h)
#define octave_sysdir_h 1
// This mess suggested by the autoconf manual.
// unistd.h defines _POSIX_VERSION on POSIX.1 systems.
#include <sys/types.h>
#include <unistd.h>
#if defined (HAVE_DIRENT_H) || defined (_POSIX_VERSION)
#include <dirent.h>
#define NLENGTH(dirent) (strlen((dirent)->d_name))
#else
#define dirent direct
#define NLENGTH(dirent) ((dirent)->d_namlen)
#if defined (HAVE_SYS_NDIR_H)
#include <sys/ndir.h>
#endif
#if defined (HAVE_SYS_DIR_H)
#include <sys/dir.h>
#endif
#if defined (HAVE_NDIR_H)
#include <ndir.h>
#endif
#endif
#endif
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