+if ENABLE_EXTRAS
+# ------------------------------------------------------------------------------
+# conditional extras (need glib, libusb, libacl, ...)
+# ------------------------------------------------------------------------------
+dist_udevrules_DATA += \
+ rules/rules.d/75-net-description.rules \
+ rules/rules.d/75-tty-description.rules \
+ rules/rules.d/78-sound-card.rules
+
+# ------------------------------------------------------------------------------
+# GUdev - libudev gobject interface
+# ------------------------------------------------------------------------------
+LIBGUDEV_CURRENT=0
+LIBGUDEV_REVISION=1
+LIBGUDEV_AGE=0
+
+SUBDIRS += extras/gudev/docs
+
+libgudev_includedir=$(includedir)/gudev-1.0/gudev
+libgudev_include_HEADERS = \
+ extras/gudev/gudev.h \
+ extras/gudev/gudevenums.h \
+ extras/gudev/gudevenumtypes.h \
+ extras/gudev/gudevtypes.h \
+ extras/gudev/gudevclient.h \
+ extras/gudev/gudevdevice.h
+
+lib_LTLIBRARIES += extras/gudev/libgudev-1.0.la
+pkgconfig_DATA += extras/gudev/gudev-1.0.pc
+
+extras_gudev_libgudev_1_0_la_SOURCES = \
+ extras/gudev/gudevenums.h \
+ extras/gudev/gudevenumtypes.h \
+ extras/gudev/gudevenumtypes.h\
+ extras/gudev/gudevtypes.h \
+ extras/gudev/gudevclient.h \
+ extras/gudev/gudevclient.c \
+ extras/gudev/gudevdevice.h \
+ extras/gudev/gudevdevice.c \
+ extras/gudev/gudevprivate.h
+
+dist_extras_gudev_libgudev_1_0_la_SOURCES = \
+ extras/gudev/gudevmarshal.h \
+ extras/gudev/gudevmarshal.c \
+ extras/gudev/gudevenumtypes.h \
+ extras/gudev/gudevenumtypes.c
+BUILT_SOURCES = $(dist_extras_gudev_libgudev_1_0_la_SOURCES)
+
+extras_gudev_libgudev_1_0_la_CPPFLAGS = \
+ $(AM_CPPFLAGS) \
+ -I$(top_builddir)/extras \
+ -I$(top_srcdir)/extras \
+ -I$(top_builddir)/extras/gudev \
+ -I$(top_srcdir)/extras/gudev \
+ -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT \
+ -D_GUDEV_COMPILATION \
+ -DG_LOG_DOMAIN=\"GUdev\"
+extras_gudev_libgudev_1_0_la_CFLAGS = $(GLIB_CFLAGS)
+extras_gudev_libgudev_1_0_la_LIBADD = libudev/libudev.la $(GLIB_LIBS)
+
+extras_gudev_libgudev_1_0_la_LDFLAGS = \
+ -version-info $(LIBGUDEV_CURRENT):$(LIBGUDEV_REVISION):$(LIBGUDEV_AGE) \
+ -export-dynamic -no-undefined \
+ -export-symbols-regex '^g_udev_.*'
+
+EXTRA_DIST += \
+ extras/gudev/COPYING \
+ extras/gudev/gudevmarshal.list \
+ extras/gudev/gudevenumtypes.h.template \
+ extras/gudev/gudevenumtypes.c.template
+
+extras/gudev/gudevmarshal.h: extras/gudev/gudevmarshal.list
+ $(AM_V_GEN)glib-genmarshal $< --prefix=g_udev_marshal --header > $@
+
+extras/gudev/gudevmarshal.c: extras/gudev/gudevmarshal.list
+ $(AM_V_GEN)echo "#include \"gudevmarshal.h\"" > $@ && \
+ glib-genmarshal $< --prefix=g_udev_marshal --body >> $@
+
+extras/gudev/gudevenumtypes.h: extras/gudev/gudevenumtypes.h.template extras/gudev/gudevenums.h
+ $(AM_V_GEN)glib-mkenums --template $^ > \
+ $@.tmp && mv $@.tmp $@
+
+extras/gudev/gudevenumtypes.c: extras/gudev/gudevenumtypes.c.template extras/gudev/gudevenums.h
+ $(AM_V_GEN)glib-mkenums --template $^ > \
+ $@.tmp && mv $@.tmp $@
+
+if ENABLE_INTROSPECTION
+extras/gudev/GUdev-1.0.gir: extras/gudev/libgudev-1.0.la $(G_IR_SCANNER) Makefile.am
+ $(AM_V_GEN)PKG_CONFIG_PATH=$(top_builddir)/data:$$PKG_CONFIG_PATH \
+ LD_LIBRARY_PATH=$(top_builddir)/extras/gudev:$$LD_LIBRARY_PATH \
+ $(G_IR_SCANNER) -v \
+ --namespace GUdev \
+ --nsversion=1.0 \
+ --include=GObject-2.0 \
+ --library=gudev-1.0 \
+ --library-path=extras/gudev \
+ --output $@ \
+ --pkg=glib-2.0 \
+ --pkg=gobject-2.0 \
+ -I$(top_builddir)/extras \
+ -I$(top_srcdir)/extras \
+ -D_GUDEV_COMPILATION \
+ -D_GUDEV_WORK_AROUND_DEV_T_BUG \
+ $(top_srcdir)/extras/gudev/gudev.h \
+ $(top_srcdir)/extras/gudev/gudevtypes.h \
+ $(top_srcdir)/extras/gudev/gudevenums.h \
+ $(or $(wildcard $(top_builddir)/extras/gudev/gudevenumtypes.h),$(top_srcdir)/extras/gudev/gudevenumtypes.h) \
+ $(top_srcdir)/extras/gudev/gudevclient.h \
+ $(top_srcdir)/extras/gudev/gudevdevice.h \
+ $(top_srcdir)/extras/gudev/gudevclient.c \
+ $(top_srcdir)/extras/gudev/gudevdevice.c
+
+extras/gudev/GUdev-1.0.typelib: extras/gudev/GUdev-1.0.gir $(G_IR_COMPILER)
+ $(AM_V_GEN)g-ir-compiler $< -o $@
+
+girdir = $(GIRDIR)
+gir_DATA = extras/gudev/GUdev-1.0.gir
+
+typelibsdir = $(GIRTYPELIBDIR)
+typelibs_DATA = extras/gudev/GUdev-1.0.typelib
+
+CLEANFILES += $(gir_DATA) $(typelibs_DATA)
+endif # ENABLE_INTROSPECTION
+
+# move lib from $(libdir) to $(rootlib_execdir) and update devel link, if needed
+libgudev-install-move-hook:
+ if test "$(libdir)" != "$(rootlib_execdir)"; then \
+ mkdir -p $(DESTDIR)$(rootlib_execdir) && \
+ so_img_name=$$(readlink $(DESTDIR)$(libdir)/libgudev-1.0.so) && \
+ so_img_rel_target_prefix=$$(echo $(libdir) | sed 's,\(^/\|\)[^/][^/]*,..,g') && \
+ ln -sf $$so_img_rel_target_prefix$(rootlib_execdir)/$$so_img_name $(DESTDIR)$(libdir)/libgudev-1.0.so && \
+ mv $(DESTDIR)$(libdir)/libgudev-1.0.so.* $(DESTDIR)$(rootlib_execdir); \
+ fi
+
+libgudev-uninstall-move-hook:
+ rm -f $(DESTDIR)$(rootlib_execdir)/libgudev-1.0.so*
+
+INSTALL_EXEC_HOOKS += libgudev-install-move-hook
+UNINSTALL_EXEC_HOOKS += libgudev-uninstall-move-hook
+
+# ------------------------------------------------------------------------------
+# Bluetooth HID devices with special magic to switch the device
+# ------------------------------------------------------------------------------