1 /* Default definition for ARGP_PROGRAM_VERSION_HOOK. 2 Copyright (C) 1996-2021 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 Written by Miles Bader <miles@gnu.ai.mit.edu>. 5 6 This file is free software: you can redistribute it and/or modify 7 it under the terms of the GNU Lesser General Public License as 8 published by the Free Software Foundation; either version 3 of the 9 License, or (at your option) any later version. 10 11 This file is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU Lesser General Public License for more details. 15 16 You should have received a copy of the GNU Lesser General Public License 17 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 18 19 #ifdef HAVE_CONFIG_H 20 # include <config.h> 21 #endif 22 23 #include "argp.h" 24 25 /* If set by the user program to a non-zero value, then a default option 26 --version is added (unless the ARGP_NO_HELP flag is used), which calls 27 this function with a stream to print the version to and a pointer to the 28 current parsing state, and then exits (unless the ARGP_NO_EXIT flag is 29 used). This variable takes precedent over ARGP_PROGRAM_VERSION. */ 30 void (*argp_program_version_hook) (FILE *stream, struct argp_state *state) = NULL;