From: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org, Andreas Schwab <schwab@linux-m68k.org>
Subject: Re: [PATCH v2] wchar: Define va_list for POSIX (BZ #30035)
Date: Thu, 9 Feb 2023 16:43:30 -0300 [thread overview]
Message-ID: <61890062-04b1-d709-abf3-ede0ba32bd0e@linaro.org> (raw)
In-Reply-To: <20230124174959.1718640-1-adhemerval.zanella@linaro.org>
Ping.
On 24/01/23 14:49, Adhemerval Zanella wrote:
> This was uncovered by a recent clang change [1]. Different than ISO C,
> POSIX states that va_list should be exported by wchar.h [2].
>
> Checked on x86_64-linux-gnu and aarch64-linux-gnu.
>
> [1] https://reviews.llvm.org/D137268
> [2] https://pubs.opengroup.org/onlinepubs/9699919799.2018edition/basedefs/wchar.h.html
> ---
> conform/data/wchar.h-data | 3 +++
> wcsmbs/wchar.h | 11 +++++++++++
> 2 files changed, 14 insertions(+)
>
> diff --git a/conform/data/wchar.h-data b/conform/data/wchar.h-data
> index e414651a33..0af74e14bc 100644
> --- a/conform/data/wchar.h-data
> +++ b/conform/data/wchar.h-data
> @@ -15,6 +15,9 @@ type size_t
> type locale_t
> # endif
> tag {struct tm}
> +# if !defined ISO99 && !defined ISO11 && !defined UNIX98
> +type va_list
> +# endif
>
> function wint_t btowc (int)
> function int fwprintf (FILE*, const wchar_t*, ...)
> diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h
> index 69e920b8c2..ca145bb8d2 100644
> --- a/wcsmbs/wchar.h
> +++ b/wcsmbs/wchar.h
> @@ -37,6 +37,17 @@
> #define __need___va_list
> #include <stdarg.h>
>
> +#if defined __USE_XOPEN2K || defined __USE_XOPEN2K8
> +# ifdef __GNUC__
> +# ifndef _VA_LIST_DEFINED
> +typedef __gnuc_va_list va_list;
> +# define _VA_LIST_DEFINED
> +# endif
> +# else
> +# include <stdarg.h>
> +# endif
> +#endif
> +
> #include <bits/wchar.h>
> #include <bits/types/wint_t.h>
> #include <bits/types/mbstate_t.h>
next prev parent reply other threads:[~2023-02-09 19:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-24 17:49 Adhemerval Zanella
2023-02-09 19:43 ` Adhemerval Zanella Netto [this message]
2023-03-22 13:11 ` Adhemerval Zanella Netto
2023-05-25 14:30 ` Adhemerval Zanella Netto
2023-05-25 15:15 ` Andreas Schwab
2023-05-25 16:43 ` Adhemerval Zanella Netto
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