Re: [UNIKRAFT/NEWLIB PATCH] Define tzname

[Sharan Santhanam <sharan.santhanam@xxxxxxxxx>]

Reviewed-by: Sharan Santhanam <sharan.santhanam@xxxxxxxxx>

On 4/16/20 9:49 PM, Felipe Huici wrote:
> Currently, tzname is defined as an extern, which results in a
> undefined reference linker error when attempting to use
> it. This patch maps tzname to _tzanme, which *is*
> defined. newlib does this mapping in OS-specific files that we
> don't compile in, so this is a way to mimic that behavior.
>
>   Signed-off-by: Felipe Huici <felipe.huici@xxxxxxxxx>
> ---
>   include/time.h | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/include/time.h b/include/time.h
> index a510293..0f94358 100644
> --- a/include/time.h
> +++ b/include/time.h
> @@ -70,4 +70,8 @@ extern long _timezone;
>   extern int _daylight;
>   extern char *_tzname[2];
>   
> +#ifndef tzname
> +#define tzname _tzname
> +#endif
> +
>   #endif /* NEWLIBGLUE_TIME_H */