Link against libudev-private.a instead of libudev.a, to avoid runtime
dependency to libudev.
# input_id - import input device class
# ------------------------------------------------------------------------------
extras_input_id_input_id_SOURCES = extras/input_id/input_id.c
-extras_input_id_input_id_LDADD = libudev/libudev.la
+extras_input_id_input_id_LDADD = libudev/libudev-private.la
libexec_PROGRAMS += extras/input_id/input_id
# ------------------------------------------------------------------------------