+# Use libutil; test if logwtmp is declared in <utmp.h> to detect
+UTMPHEADER = "\#include <utmp.h>"
+ifeq ($(shell echo $(UTMPHEADER) | $(CC) -E - 2>/dev/null | grep -q logwtmp && echo yes),yes)
+USE_LIBUTIL=y
+endif
+
+# Enable EAP-TLS authentication (requires MPPE support, libssl and libcrypto)
+USE_EAPTLS=y
+