@ -412,7 +412,7 @@ int main(int argc, char** argv)
if (!glfwInit())
exit(EXIT_FAILURE);
while ((ch = getopt_long(argc, argv, "a:b:dfhlm:n:p:s:v", options, NULL)) != -1)
while ((ch = getopt_long(argc, argv, "a:b:c:dfhlm:n:p:s:v", options, NULL)) != -1)
{
switch (ch)