headers, so we need to declare it ourselves to be able to use it.
*/
#if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)
+#ifdef __cplusplus
extern "C"
+#else
+ extern
+#endif
int vsnprintf(char *str, size_t size, const char *format, va_list ap);
#endif /* !HAVE_VSNPRINTF_DECL */