From: john dumas 

Lets say I have an array of  char * pointers in  dll.hpp called array1. I
can include dll.hpp in both the dll.cpp and prog.cpp. And the program will
be satified when I try to use it.

  ( array1 in dll.hpp )
             / \
            /    \
     dll.cpp   prog .cpp

int __stdcall (*foo)( char **array1 );

foo = ...GetProcAddress...

But, what if  array1 is in dll.cpp

  ( array1 in dll.cpp )
             |
             |
        prog .cpp

int __stdcall (* foo)( char **array1 );

Undefined symbol   ... array1

Is there some way to access array1 in dll.cpp from prog.cpp?

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