My code wont compile in GCC

[Jonathan Wilson <jonwil at tpgi dot com dot au>]

Basicly, I have this: (in C++ code)
typedef void (*Debug_Message) (const char * msg,...);
typedef void (*Action_Reset) (GameObject *obj,float reset);
...more similar items

then later I have this:
struct ScriptCommandsClass {
	unsigned int version1;
	unsigned int version2;
	Debug_Message Debug_Message;
	Action_Reset Action_Reset;
...more similar items
};
However, GCC tells me that what I have is an error.
The code compiles just fine on Visual C++.

Is this:
A.a bug in GCC
B.a bug in visual C++
C.something GCC specific
or D.A case where GCC follows the C++ standard but Visual C++ does not.

Code compiles fine in Visual C++ 6 and at least one later version but not 
GCC 3.3.1

Can anyone suggest a fix that will get this code compiling in both compilers?