Latest compatible version of Classicube from the original GitHub repository (https://github.com/ClassiCube/ClassiCube) that can be compiled on Classicube for PowerMac PPC running Mac OS X 10.4.

third_party/dsiwifi/arm_host/source/wifi_debug.c

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2021 Max Thomas
+ * This file is part of DSiWifi and is distributed under the MIT license.
+ * See dsiwifi_license.txt for terms of use.
+ */
+
+#include "wifi_debug.h"
+
+#include "dsiwifi9.h"
+
+#include <nds.h>
+#include <nds/interrupts.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+char __print_buffer[0x200] = {0};
+
+void wifi_printf(char* fmt, ...)
+{
+    if (!DSiWifi_pfnLogHandler)
+        return;
+
+    int lock = enterCriticalSection();
+    va_list args;
+    va_start(args, fmt);
+    vsnprintf(__print_buffer, 0x200-1, fmt, args);
+    va_end(args);
+
+    DSiWifi_pfnLogHandler(__print_buffer);
+    
+    leaveCriticalSection(lock);
+}
+
+void wifi_printlnf(char* fmt, ...)
+{
+    if (!DSiWifi_pfnLogHandler)
+        return;
+
+    int lock = enterCriticalSection();
+    va_list args;
+    va_start(args, fmt);
+    vsnprintf(__print_buffer, 0x200-2, fmt, args);
+    strcat(__print_buffer, "\n");
+    va_end(args);
+
+    DSiWifi_pfnLogHandler(__print_buffer);
+
+    leaveCriticalSection(lock);
+}