bug#21602: 25.0.50; coding system seg fault

[Andreas Schwab <schwab@linux-m68k.org>]

Eli Zaretskii <eliz@gnu.org> writes:

> @@ -4526,6 +4529,7 @@ choose_write_coding_system (Lisp_Object start, Lisp_Object end, Lisp_Object file
>    else if (!NILP (Vcoding_system_for_write))
>      {
>        val = Vcoding_system_for_write;
> +      CHECK_CODING_SYSTEM (val);
>        if (coding_system_require_warning
>  	  && !NILP (Ffboundp (Vselect_safe_coding_system_function)))
>  	/* Confirm that VAL can surely encode the current region.  */
> @@ -4574,6 +4578,9 @@ choose_write_coding_system (Lisp_Object start, Lisp_Object end, Lisp_Object file
>  	  using_default_coding = 1;
>  	}
>  
> +      if (!NILP (val))
> +	CHECK_CODING_SYSTEM (val);
> +
>        if (! NILP (val) && ! force_raw_text)
>  	{
>  	  Lisp_Object spec, attrs;

I think you also have to recheck val after calling
select-safe-coding-system, and default-buffer-file-coding-system.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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