Fix a bug where autoconf 2.71 complains about AC_PROG_INTLTOOL not being used.
Testing Done:
Tested in a fedora rawhide container with the autoconf 2.71 copr installed.
Also tested in debian buster with autoconf 2.71 installed from experimental.
Bugs closed: PIDGIN-17509
Reviewed at https://reviews.imfreedom.org/r/589/
#
# Makefile.mingw
#
# Description: Makefile for win32 (mingw) version of Pidgin sounds
#
PIDGIN_TREE_TOP:=../..
include $(PIDGIN_TREE_TOP)/libpurple/win32/global.mak