pidgin/pidgin

Fix incompatible type conversion errors
release-2.x.y
4 months ago, Elliott Sales de Andrade
488055ab5531
Fix incompatible type conversion errors

- A recent libxml2 changed its handler function to take a `const` pointer. It's
safe for us to have it, and them not, but the opposite way causes an implicit
cast warning.
- In relatively new GLib (many years now), `g_object_ref` casts its output to
match its input. This means we should not be casting to `G_OBJECT`, as that
is not the type it expects, and would translate to the output being `GObject`
instead of the original type.

This fixes the build in Fedora 40, which changes several incompatible pointer
conversion warnings into errors.

This patch is partially from the Fedora maintainer @yarda, with some corrections by me (to the `g_object_ref` portions.)

Testing Done:
Compiled in a Rawhide environment with this patch applied.

Bugs closed: PIDGIN-17850

Reviewed at https://reviews.imfreedom.org/r/2944/
/**
* @file idle.h Idle API
* @ingroup core
*/
/* purple
*
* Purple 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 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 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#ifndef _PURPLE_IDLE_H_
#define _PURPLE_IDLE_H_
#include <time.h>
/**
* Idle UI operations.
*/
typedef struct
{
time_t (*get_time_idle)(void);
void (*_purple_reserved1)(void);
void (*_purple_reserved2)(void);
void (*_purple_reserved3)(void);
void (*_purple_reserved4)(void);
} PurpleIdleUiOps;
#ifdef __cplusplus
extern "C" {
#endif
/**************************************************************************/
/** @name Idle API */
/**************************************************************************/
/*@{*/
/**
* Touch our idle tracker. This signifies that the user is
* 'active'. The conversation code calls this when the
* user sends an IM, for example.
*/
void purple_idle_touch(void);
/**
* Fake our idle time by setting the time at which our
* accounts purportedly became idle. This is used by
* the I'dle Mak'er plugin.
*/
void purple_idle_set(time_t time);
/*@}*/
/**************************************************************************/
/** @name Idle Subsystem */
/**************************************************************************/
/*@{*/
/**
* Sets the UI operations structure to be used for idle reporting.
*
* @param ops The UI operations structure.
*/
void purple_idle_set_ui_ops(PurpleIdleUiOps *ops);
/**
* Returns the UI operations structure used for idle reporting.
*
* @return The UI operations structure in use.
*/
PurpleIdleUiOps *purple_idle_get_ui_ops(void);
/**
* Initializes the idle system.
*/
void purple_idle_init(void);
/**
* Uninitializes the idle system.
*/
void purple_idle_uninit(void);
/*@}*/
#ifdef __cplusplus
}
#endif
#endif /* _PURPLE_IDLE_H_ */