Fix MicroBlaze bits/setjmp.h for C++

[Michael Eager]

On 01/03/2017 01:37 PM, Joseph Myers wrote:
> For MicroBlaze, setjmp/check-installed-headers-cxx fails with:
>
> ../setjmp/setjmp.h:34:8: error: '__jmp_buf_tag' has a field '__jmp_buf_tag::__jmpbuf' whose type depends on the type '<unnamed struct>' which has no linkage [-Werror=subobject-linkage]
>
> This patch fixes this in the same way as for some other architectures:
> the struct used for the internal __jmp_buf type is given the tag
> __jmp_buf_internal_tag.
>
> Tested (compilation tests) with build-many-glibcs.py.
>
> 2017-01-03  Joseph Myers  <joseph@codesourcery.com>
>
> 	* sysdeps/microblaze/bits/setjmp.h (__jmp_buf): Give struct tag
> 	__jmp_buf_internal_tag.
>
> diff --git a/sysdeps/microblaze/bits/setjmp.h b/sysdeps/microblaze/bits/setjmp.h
> index d54db9c..fd175da 100644
> --- a/sysdeps/microblaze/bits/setjmp.h
> +++ b/sysdeps/microblaze/bits/setjmp.h
> @@ -25,7 +25,7 @@
>   # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
>   #endif
>
> -typedef struct
> +typedef struct __jmp_buf_internal_tag
>     {
>       /* There are 21 4-byte registers that should be saved:
>          r1, r2, r13-r31. Actually, there seems no need to save


OK.


-- 
Michael Eager	 eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077