Plan 9 from Bell Labs’s /usr/web/sources/contrib/steve/root/sys/src/cmd/tex/kpathsea/progname.h

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

Copyright (C) 1994, 96 Karl Berry.

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#ifndef KPATHSEA_PROGNAME_H
#define KPATHSEA_PROGNAME_H

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

extern DllImport string program_invocation_name;
extern DllImport string program_invocation_short_name;
extern DllImport string kpse_program_name;

/* 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
   or the value of program_invocation_short_name if PROGNAME is NULL.
   This function also determines the AUTO* variables. */

extern void kpse_set_program_name P2H(const_string argv0,
                                      const_string progname);

/* See also `kpse_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. */

/* DEPRECATED
   Set first two variables above (if they're not predefined) to a copy of
   ARGV0 and everything in ARGV0 after the last directory separator,
   respectively.  kpse_program_name is _always_ set to a copy of everything
   in ARGV0 after the last directory separator. */

extern void kpse_set_progname P1H(const_string argv0);

#endif /* not KPATHSEA_PROGNAME_H */

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