AS_IF([test "x$with_systemdsystemunitdir" != "xno"], [ AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir]) ])
AM_CONDITIONAL(WITH_SYSTEMD, [test -n "$with_systemdsystemunitdir" -a "x$with_systemdsystemunitdir" != "xno" ])
+PKG_CHECK_MODULES(BLKID, blkid >= 2.20)
+
# ------------------------------------------------------------------------------
# GUdev - libudev gobject interface
# ------------------------------------------------------------------------------