libgnt/libgnt

Make all destroy functions multi-call safe.

2020-09-27, Elliott Sales de Andrade
ffb6069167a2
Make all destroy functions multi-call safe.

Also, fix an incorrect name for a dispose vfunc.

Testing Done:
Compile only, and the test from LIBGNT-11.

Reviewed at https://reviews.imfreedom.org/r/141/
/*
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library 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 2 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 <https://www.gnu.org/licenses/>.
*/
#if !defined(GNT_GLOBAL_HEADER_INSIDE) && !defined(GNT_COMPILATION)
# error "only <gnt.h> may be included directly"
#endif
#ifndef GNT_VERSION_H
#define GNT_VERSION_H
/**
* SECTION:gntversion
* @section_id: libgnt-gntversion
* @title: Version Information
* @short_description: Variables to check the GNT version
*/
#mesondefine GNT_VERSION
#mesondefine GNT_MAJOR_VERSION
#mesondefine GNT_MINOR_VERSION
#mesondefine GNT_MICRO_VERSION
#mesondefine GNT_EXTRA_VERSION
#endif