--- /dev/null
+#ifndef BUILD_FEATURES_H
+#define BUILD_FEATURES_H
+
+static inline int has_feature(const char *feat)
+{
+#ifdef IEEE8021X_EAPOL
+ if (!strcmp(feat, "eap"))
+ return 1;
+#endif
+#ifdef IEEE80211N
+ if (!strcmp(feat, "11n"))
+ return 1;
+#endif
+ return 0;
+}
+
+#endif /* BUILD_FEATURES_H */