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/
plugindir = $(libdir)/pidgin
gestures_la_LDFLAGS = -module -avoid-version
if PLUGINS
plugin_LTLIBRARIES = gestures.la
gestures_la_SOURCES = \
gestures.c \
gstroke.h \
gstroke-internal.h \
stroke.c \
stroke-draw.c
gestures_la_LIBADD = $(GTK_LIBS)
endif
AM_CPPFLAGS = \
-DDATADIR=\"$(datadir)\" \
-I$(top_srcdir)/libpurple \
-I$(top_builddir)/libpurple \
-I$(top_srcdir)/pidgin \
$(DEBUG_CFLAGS) \
$(GTK_CFLAGS)