add basic support for title installing

sphaira/include/log.hpp

@@ -1,24 +1,33 @@
 #pragma once
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define sphaira_USE_LOG 1
 
-#include <cstdarg>
+#include <stdarg.h>
 
 #if sphaira_USE_LOG
-auto log_file_init() -> bool;
-auto log_nxlink_init() -> bool;
+bool log_file_init();
+bool log_nxlink_init();
 void log_file_exit();
 void log_nxlink_exit();
 void log_write(const char* s, ...) __attribute__ ((format (printf, 1, 2)));
-void log_write_arg(const char* s, std::va_list& v);
+void log_write_arg(const char* s, va_list* v);
 #else
-inline auto log_file_init() -> bool {
+inline bool log_file_init() {
     return true;
 }
-inline auto log_nxlink_init() -> bool {
+inline bool log_nxlink_init() {
     return true;
 }
 #define log_file_exit()
 #define log_nxlink_exit()
 #define log_write(...)
+#define log_write_arg(...)
+#endif
+
+#ifdef __cplusplus
+}
 #endif