Yes it is straightforward to do.

The method is probably in the series "Organic Synthesis" by Arnold Weissberger of Eastman Kodak. It is a multivolume series that describes how to make most common organic chemicals.

The Merck Index will give you references to making it as well.

Do NOT confuse glycin with glycine. (gly sin vs gly seen) The first is the developer you want and the second is an essential amino acid.