/* Program name management.

   Copyright (C) 2001-2004, 2006, 2009-2016 Free Software Foundation, Inc.

   Written by Bruno Haible <bruno@clisp.org>, 2001.

   This program 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.

   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef _PROGNAME_H

#define _PROGNAME_H

/* Programs using this file should do the following in main():

     set_program_name (argv[0]);

 */

#ifdef __cplusplus

extern "C" {

#endif

/* String containing name the program is called with.  */

extern const char *program_name;

/* Set program_name, based on argv[0].

   argv0 must be a string allocated with indefinite extent, and must not be

   modified after this call.  */

extern void set_program_name (const char *argv0);

#if ENABLE_RELOCATABLE

/* Set program_name, based on argv[0], and original installation prefix and

   directory, for relocatability.  */

extern void set_program_name_and_installdir (const char *argv0,

                                             const char *orig_installprefix,

                                             const char *orig_installdir);

#undef set_program_name

#define set_program_name(ARG0) \

  set_program_name_and_installdir (ARG0, INSTALLPREFIX, INSTALLDIR)

/* Return the full pathname of the current executable, based on the earlier

   call to set_program_name_and_installdir.  Return NULL if unknown.  */

extern char *get_full_program_name (void);

#endif

#ifdef __cplusplus

}

#endif

#endif /* _PROGNAME_H */