using _FILE_OFFSET_BITS=64 with a non-gcc compiler

[Bruno Haible]

Ulrich Drepper writes:

> > Are 'readdir64' and 'getrlimit64' defined or reserved in the standard?
> 
> These obviously are defined.
> 
> > Are 'dirent64' and 'rlimit64' defined or reserved in the standard?
> 
> These are names of structs.  Identifiers of these names are not defined.

I see. How about another approach.

  - In every file which defines a __readdir64 function we also add
    '__lfs_readdir' as a strong alias of it.

  - In <dirent.h> we replace the piece of code (used only if
    defined __USE_FILE_OFFSET64 && !defined __REDIRECT)

      #define readdir readdir64

    with

      #define readdir __lfs_readdir
      extern struct dirent *readdir (DIR *__dirp) __THROW;

Would that be namespace clean in your opinion? Shall I prepare a patch
for it?

Bruno