diff --git a/meta/classes/bluetooth.bbclass b/meta/classes/bluetooth.bbclass
new file mode 100644
index 0000000..f88b4ae
--- /dev/null
+++ b/meta/classes/bluetooth.bbclass
@@ -0,0 +1,14 @@
+# Avoid code duplication in bluetooth-dependent recipes.
+
+# Define a variable that expands to the recipe (package) providing core
+# bluetooth support on the platform:
+# "" if bluetooth is not in DISTRO_FEATURES
+# else "bluez5" if bluez5 is in DISTRO_FEATURES
+# else "bluez4"
+
+# Use this with:
+#  inherit bluetooth
+#  PACKAGECONFIG ??= "${@bb.utils.contains('DISTRO_FEATURES', 'bluetooth', '${BLUEZ}', '', d)}
+#  PACKAGECONFIG[bluez4] = "--enable-bluez4,--disable-bluez4,bluez4"
+
+BLUEZ ?= "${@bb.utils.contains('DISTRO_FEATURES', 'bluetooth', bb.utils.contains('DISTRO_FEATURES', 'bluez5', 'bluez5', 'bluez4', d), '', d)}"