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/* progname.h: Declarations for argv[0] equivalents.

   Copyright 1994, 1996, 2008, 2010, 2011 Karl Berry.
   Copyright 1999, 2005 Olaf Weber.

   This library 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 2.1 of the License, or (at your option) any later version.

   This library 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 this library; if not, see <http://www.gnu.org/licenses/>.  */

#ifndef KPATHSEA_PROGNAME_H
#define KPATHSEA_PROGNAME_H

#include <kpathsea/c-proto.h>
#include <kpathsea/types.h>

/* Return directory ARGV0 comes from.  Check PATH if ARGV0 is not
   absolute.  */

#if !defined (WIN32)
extern KPSEDLL string kpathsea_selfdir (kpathsea kpse, const_string argv0);
#endif

/* Set the first two variables above (if they're not predefined) to a copy
   of ARGV0 and everything in ARGV0 after the last directory separator,
   respectively.  Set kpse_program_name to a copy of PROGNAME or the
   value of kpse_invocation_short_name if PROGNAME is NULL.
   This function also determines the AUTO* variables. */

extern KPSEDLL void kpathsea_set_program_name (kpathsea kpse,
                            const_string argv0, const_string progname);

/* See also `kpathsea_reset_program_name' which is defined in tex-file.c

   That function is to be used to set kpse->program_name to a different
   value.  It clears the path searching information, to ensure that
   the search paths are appropriate to the new name. */


#if defined (KPSE_COMPAT_API)
#if !defined (WIN32)
extern KPSEDLL string kpse_selfdir (const_string argv0);
#endif

extern KPSEDLL void kpse_set_program_name (const_string argv0,
                                      const_string progname);
#endif /* KPSE_COMPAT_API */

#endif /* not KPATHSEA_PROGNAME_H */