pidgin/pidgin

Merge release-2.x.y branch into main, with manual merges in
ChangeLog (easy)
Makefile.mingw (easy)
configure.ac (easy)
irc/msgs.c (not too bad)

And some Windows build files. We should make sure the pango used by 3.0.0
doesn't have the crash bug from CVE-2013-6486.
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
datarootdir=@datarootdir@
datadir=@datadir@
sysconfdir=@sysconfdir@
abs_srcdir=@abs_srcdir@
abs_builddir=@abs_builddir@
abs_top_srcdir=@abs_top_srcdir@
abs_top_builddir=@abs_top_builddir@
plugindir=${libdir}/purple-@PURPLE_MAJOR_VERSION@
Name: libpurple
Description: libpurple is a GLib-based instant messenger library.
Version: @VERSION@
Requires: glib-2.0
Cflags: -I${abs_top_srcdir} -I${abs_top_builddir}
Libs: ${abs_builddir}/libpurple.la