somedefs – Save load­ing all of an­other pack­age

A pro­gram­mer's toolkit pack­age for use by pack­age writ­ers sup­port­ing the pro­vi­sion of op­tions which switch def­i­ni­tions con­tained in a pack­age on and off through pack­age op­tions. It thus does not re­quire all of the pack­age to be loaded into mem­ory.
The pack­age is part of the tools bun­dle in the LaTeX re­quired dis­tri­bu­tion.