bug#10286: emacs-24.0.92 on GNU/Linux IA-64

[Nelson H. F. Beebe]

A build of emacs-24.0.92 on GNU/Linux IA-64 fails in the src directory
with the compilation error

        alloc.c:4537: error: too many arguments to function 'mark_memory'

Here is the preprocessor output that explains why:

    static void mark_memory (void *, void *);
    ...
    do { 
        extern void *__libc_ia64_register_backing_store_base;
        __builtin_ia64_flushrs ();
        mark_memory (__libc_ia64_register_backing_store_base,
                     __builtin_ia64_bsp(), 
                     0);
       } while (0);

Notice the extra trailing 0 argument to mark_memory().

The erroneous argument comes from s/gnu-linux.h.  I patched it to
remove that argument and restarted the build.  It succeeded, and has
now been installed here.

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