pidgin/pidgin

Fix building on glib < 2.58.0 as we have a minimum of 2.52.0

2021-03-13, Gary Kramlich
3891ef6e3b56
Fix building on glib < 2.58.0 as we have a minimum of 2.52.0

Add compatibility for G_SOURCE_FUNC and g_time_zone_new_offset that were added in 2.58.0

g_time_zone_new_offset is from 2.58.0 which might be buggy, the version of it
from glib git has some fixes it but it is much more involved so using the older
version is a calculated risk.

Testing Done:
Built on ubuntu:bionic.

Reviewed at https://reviews.imfreedom.org/r/573/
/*
* Purple - Internet Messaging Library
* Copyright (C) Pidgin Developers <devel@pidgin.im>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <https://www.gnu.org/licenses/>.
*/
#if !defined(PURPLE_GLOBAL_HEADER_INSIDE) && !defined(PURPLE_COMPILATION)
# error "only <purple.h> may be included directly"
#endif
#ifndef PURPLE_NOOP_CREDENTIAL_PROVIDER_H
#define PURPLE_NOOP_CREDENTIAL_PROVIDER_H
#include <glib.h>
#include <glib-object.h>
#include <purplecredentialprovider.h>
/**
* SECTION:purplenoopcredentialprovider
* @section_id: libpurple-purplenoopcredentialprovider
* @title: No Operation Credential Provider Object
*
* This is the "None" credential provider that always returns failures so that
* the user is forced to enter a password.
*/
G_BEGIN_DECLS
/**
* PurpleNoopCredentialProvider:
*
* #PurpleNoopCredentialProvider is a #PurpleCredentialProvider that does not
* actually provider credentials. It is used to implement the default behavior
* of requiring users to input passwords.
*
* Since: 3.0.0
*/
#define PURPLE_TYPE_NOOP_CREDENTIAL_PROVIDER (purple_noop_credential_provider_get_type())
G_DECLARE_FINAL_TYPE(PurpleNoopCredentialProvider,
purple_noop_credential_provider,
PURPLE, NOOP_CREDENTIAL_PROVIDER, PurpleCredentialProvider)
/**
* purple_noop_credential_provider_new:
*
* Creates a new #PurpleNoopCredentialProvider instance. You typically will
* not need to call this directly as #PurpleCredentialManager will create one
* for itself.
*
* Returns: (transfer full): The new #PurpleNoopCredentialProvider instance.
*/
PurpleCredentialProvider *purple_noop_credential_provider_new(void);
G_END_DECLS
#endif /* PURPLE_NOOP_CREDENTIAL_PROVIDER */