pidgin/pidgin

Add a compatiblity layer for g_s?list_free_full and port everything to it.
release-2.x.y
2021-02-12, Gary Kramlich
d687fda4047d
Add a compatiblity layer for g_s?list_free_full and port everything to it.

This avoids a warning from stuff like (GFunc)g_free being an invalid cast.

Testing Done:
Compiled

Reviewed at https://reviews.imfreedom.org/r/498/
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
datarootdir=@datarootdir@
datadir=@datadir@
sysconfdir=@sysconfdir@
Name: Pidgin (Gaim compatibility)
Description: Pidgin is a GTK2-based instant messenger application.
Version: @VERSION@
Requires: glib-2.0
Cflags: -I${includedir}/libpurple
Libs: -L${libdir} -lpurple