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/
---
id: im.pidgin.Pidgin3
runtime: org.gnome.Platform
runtime-version: '3.36'
sdk: org.gnome.Sdk
command: pidgin3
finish-args:
- --share=ipc
- --socket=fallback-x11
- --share=network
- --socket=pulseaudio
- --talk-name=org.freedesktop.Notifications
- --system-talk-name=org.freedesktop.Avahi
modules:
- packaging/flatpak/libpurple-common.yml
- packaging/flatpak/talkatu.yml
- name: pidgin3
buildsystem: meson
config-opts:
- -Dconsoleui=false
- -Ddoc=false
sources:
- type: dir
path: '.'