Doxygen for haiku.h/haiku.cpp

src/haiku.h

@@ -1,15 +1,21 @@
-#include "struct.h"
-
-/*
+/** @file haiku.h
+ * Declarations of HAIKU specific functions.
+ *
  * Haiku specific code was moved here, because the API is C++.
  * It can't be compiled in the usual C files.
- * So we provide a C wrapper to the functons we need.
+ * So we provide a C wrapper to the functions we need.
  */
-
 #ifndef __HAIKU_H
 #define __HAIKU_H
+#include "struct.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 qword haiku_get_free_space(char* path);
 char* haiku_get_clipboard();
+#ifdef __cplusplus
+}
+#endif
 
 #endif