[OCLUG-devel] C and external variables

[James Colannino]

I have a quick question about C and external variables; let's say that 
in one file I have the following:

typedef struct thing_ {
    variables;
} thing;

Now let's say that I want to declare a variable in another file with 
that external type.  How would I declare it?  Would I have to do another 
typedef in the other file, such as:

typedef extern thing thing;

I'm just guessing here, so I know I'm most likely wrong.  Thanks in advance.

James