-RDEPENDS_${PN} += "agl-service-voice-high"
-RDEPENDS_${PN} += "agl-service-voice-high-capabilities"
+# Checking PREFERRED_RPROVIDER_virtual/voiceagent below is less than ideal, but
+# seems required until there is a usable default voiceagent.
+RDEPENDS_${PN} += " \
+ agl-service-voice-high \
+ agl-service-voice-high-capabilities \
+ ${@oe.utils.conditional("PREFERRED_RPROVIDER_virtual/voiceagent", "", "", "virtual/voiceagent", d)} \
+"