The new HAS_OT_NETIF_THREAD_HOST is from an enum, so the ifndef check would not work on it by default

Author: lpbeliveau-silabs

src/inet/UDPEndPointImplOpenThread.cpp

@@ -28,7 +28,9 @@
 #include <system/SystemPacketBuffer.h>
 
 // Temporary until we manage to update the OT version in the CI
-#ifndef OT_NETIF_THREAD_HOST
+// Define a macro if OT_NETIF_THREAD_HOST is present in the enum
+#define HAS_OT_NETIF_THREAD_HOST (OT_NETIF_THREAD_HOST == OT_NETIF_THREAD_HOST)
+#ifndef HAS_OT_NETIF_THREAD_HOST
 #define OT_NETIF_THREAD_HOST OT_NETIF_THREAD
 #endif