[PING] [PATCH v2] manual: Update @standards for [__]va_copy.

[Rical Jasan <ricaljasan at pacific dot net>]

Ping

The review of v1 had some difference of opinion [1] regarding the
mention of GCC 3.0.  I left it in, but addressed the other comments [2].

Rical

[1] https://sourceware.org/ml/libc-alpha/2017-06/msg00768.html
[2] https://sourceware.org/ml/libc-alpha/2017-06/msg00765.html

On 06/20/2017 04:03 AM, Rical Jasan wrote:
> The ISO version in which va_copy was introduced is made explicit, and
> __va_copy is given @standards.  The description is updated to be more
> clear about the origins of each macro, and the reader is informed
> these macros are now provided by the compiler (information previously
> embedded in a Texinfo @comment).
> 
> 	* lang.texi (va_copy): Change standard from ISO to C99.
> 	(__va_copy): Add standard and header annotation.
> 	Update description for clarity of origins and current use.
> ---
>  manual/lang.texi | 15 +++++++++------
>  1 file changed, 9 insertions(+), 6 deletions(-)
> 
> diff --git a/manual/lang.texi b/manual/lang.texi
> index cacbdfb7c5..0ba002a396 100644
> --- a/manual/lang.texi
> +++ b/manual/lang.texi
> @@ -471,18 +471,21 @@ of the same type.
>  
>  @deftypefn {Macro} void va_copy (va_list @var{dest}, va_list @var{src})
>  @deftypefnx {Macro} void __va_copy (va_list @var{dest}, va_list @var{src})
> -@standardsx{va_copy, ISO, stdarg.h}
> +@standardsx{va_copy, C99, stdarg.h}
> +@standardsx{__va_copy, GNU, stdarg.h}
>  @safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}}
> -@c This is no longer provided by glibc, but rather by the compiler.
>  The @code{va_copy} macro allows copying of objects of type
>  @code{va_list} even if this is not an integral type.  The argument pointer
>  in @var{dest} is initialized to point to the same argument as the
>  pointer in @var{src}.
>  
> -This macro was added in ISO C99.  When building for strict conformance
> -to ISO C90 (@samp{gcc -ansi}), it is not available.  The macro
> -@code{__va_copy} is available as a GNU extension in any standards
> -mode; before GCC 3.0, it was the only macro for this functionality.
> +@code{va_copy} was added in ISO C99.  When building for strict
> +conformance to ISO C90 (@samp{gcc -std=c90}), it is not available.
> +GCC provides @code{__va_copy}, as an extension, in any standards mode;
> +before GCC 3.0, it was the only macro for this functionality.
> +
> +These macros are no longer provided by @theglibc{}, but rather by the
> +compiler.
>  @end deftypefn
>  
>  If you want to use @code{va_copy} and be portable to pre-C99 systems,
>