w64 native support needs type abstraction for long

[Kai Tietz]

Hello,

I am currently on the port of binutils (especially of libbfd for gdb) to 
support native windows 64. Here I noticed, that in some places a "long" 
type is used for helding pointer values (e.g. in 
"/include/coff/internal.h" for structure internal_syment). I would like to 
introduce for this the type "longptr_t" defined as follows

#ifndef LONGPTR_T
#define LONGPTR_T
#ifdef _WIN64
typedef long long longptr_t;
typedef unsigned long long ulongptr_t;
#else
typedef unsigned long ulongptr_t;
typedef long longptr_t;
#endif
#endif

and replace these by longptr_t/ulongptr_t. (AFAIK size_t or intptr_t is 
not defined on all platforms).

Where I should place this new type ? I thoght about bfd.h.
Or should I use a different approach ?

Regards,
 i.A. Kai Tietz

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