fix compliation on NetBSD
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index eac5b4e..94d5f7c 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -379,7 +379,7 @@
#define SOCKETCLOSE close
#endif
-#if defined(HAVE_BLUETOOTH_H) || defined(HAVE_BLUETOOTH_BLUETOOTH_H) && !defined(__NetBSD__)
+#if (defined(HAVE_BLUETOOTH_H) || defined(HAVE_BLUETOOTH_BLUETOOTH_H)) && !defined(__NetBSD__)
#define USE_BLUETOOTH 1
#if defined(__FreeBSD__)
#define BTPROTO_L2CAP BLUETOOTH_PROTO_L2CAP