void UserInterface::drawCenteredString(int y, int size, const char *format, ...)
   {
    va_list args;
    va_start(args, format);
    char buffer[2048];
    dVsprintf(buffer, sizeof(buffer), format, args);
    va_end(args);

    drawCenteredString2(y, size, buffer);
 }

 // Elsewhere, in platform.cpp... (this is where the error occurs)

 S32 dVsprintf(char *buffer, int bufferSize, const char *format, void *arglist)
 {
    return vsnprintf(buffer, bufferSize, format, (char *) arglist);
 }

platform.cpp:457: error: cannot convert 'char*' to '__va_list_tag*' for argument '4' to 'int TNL::vsnprintf(char*, size_t, const char*, __va_list_tag*)'

return vsnprintf(buffer, bufferSize, format, (va_list) arglist);

logprintf("Hello %s", name);

void logprintf(const char *format, ...)
{
   va_list s;
   va_start( s, format );

   logger(LogConsumer::GeneralFilter, format, s);
   va_end(s);
}

void logger(LogConsumer::FilterType filtertype, const char *format, va_list args)
{
   char buffer[4096];

   vsnprintf(buffer, sizeof(buffer), format, args);

   Platform::outputDebugString(buffer);
}

S32 dVsprintf(char *buffer, int bufferSize, const char *format, void *arglist)

S32 dVsprintf(char *buffer, size_t bufferSize, const char *format, va_list arglist)

S32 dVsprintf(char *buffer, int bufferSize, const char *format, void *arglist)

void UserInterface::drawCenteredString(int y, int size, const char *format, ...)
{
    ///...
    drawCenteredString(y, size, buffer);
}

S32 dVsprintf(char *buffer, int bufferSize, const char *format, ...)
{
    va_list va_args;
    va_start( va_args, format );
    S32 result = vsnprintf(buffer, bufferSize, format, va_args);
    va_end( va_args );
    return result;
}