pidgin/pidgin

Install our appdata file to $(datadir)/metainfo as that change was made a long time ago
release-2.x.y
2021-04-09, Gary Kramlich
a817d80eeb79
Install our appdata file to $(datadir)/metainfo as that change was made a long time ago

This patch originates from Lars Wendler from Gentoo

https://gitweb.gentoo.org/repo/gentoo.git/commit/net-im/pidgin/files/pidgin-2.13.0-metainfo.patch?id=2dd6c1852251b5b67c3045badf173be9535b97a9

Testing Done:
Installed to a prefix and verified the file ended up in `$prefix/share/metainfo`

Reviewed at https://reviews.imfreedom.org/r/607/
EXTRA_DIST = \
Makefile.mingw \
README
pkgdir = $(libdir)/purple-$(PURPLE_MAJOR_VERSION)
NULLSOURCES = nullprpl.c
AM_CFLAGS = $(st)
libnull_la_LDFLAGS = -module -avoid-version
# nullprpl isn't built by default. when it is built, it's dynamically linked.
st =
pkg_LTLIBRARIES = libnull.la
libnull_la_SOURCES = $(NULLSOURCES)
libnull_la_LIBADD = $(GLIB_LIBS)
AM_CPPFLAGS = \
-I$(top_srcdir)/libpurple \
-I$(top_builddir)/libpurple \
$(GLIB_CFLAGS) \
$(DEBUG_CFLAGS)