C Typedef - Incomplete Type

Question

So, out of the blue, the compiler decides to spit this in face: \"field customer has incomplete type\".

Here\'s the relevant snippets of code:

customer.c

Answer 1

It seems that something like

typedef struct foo bar;

won't work without the definition in the header. But something like

typedef struct foo *baz;

will work, as long as you don't need to use baz->xxx in the header.