Fixed bug #49895: Incorrect configuration detection in lwip/dns.h
Signed-off-by: goldsimon <goldsimon@gmx.de>
diff --git a/src/include/lwip/dns.h b/src/include/lwip/dns.h
index 3753a53..2d147af 100644
--- a/src/include/lwip/dns.h
+++ b/src/include/lwip/dns.h
@@ -61,7 +61,7 @@
#ifndef LWIP_DNS_ADDRTYPE_DEFAULT
#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4_IPV6
#endif
-#elif defined(LWIP_IPV4)
+#elif LWIP_IPV4
#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4
#else
#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV6