From: Omar Polo <op@omarpolo.com>
Subject: Re: [PATCH portable] template: enable extensions to C when needed
To: Anna Vyalkova <cyber+misc@sysrq.in>
Cc: gameoftrees@openbsd.org
Date: Sat, 25 Feb 2023 09:55:17 +0100

On 2023/02/25 03:20:42 +0500, Anna Vyalkova <cyber+misc@sysrq.in> wrote:
> This patch fixes two warnings, enabling `-D_GNU_SOURCE` on GNU systems:
> 
>  * parse.y:296:29: warning: implicit declaration of function ‘asprintf’; did you mean ‘vsprintf’? [-Wimplicit-function-declaration]
>  * parse.y:333:13: warning: implicit declaration of function ‘vasprintf’; did you mean ‘vsprintf’? [-Wimplicit-function-declaration]

Ooops, forgot about it when I switched template/ to use its own
configure script.  Committed, thanks!

>  template/configure.ac | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/template/configure.ac b/template/configure.ac
> index bd7a2184f..df2c739c8 100644
> --- a/template/configure.ac
> +++ b/template/configure.ac
> @@ -5,6 +5,8 @@ AM_INIT_AUTOMAKE([foreign subdir-objects])
>  AC_ARG_VAR(HOSTCC, [The C compiler on the host.])
>  AC_ARG_VAR(HOSTCFLAGS, [CFLAGS for the host compiler])
>  
> +AC_USE_SYSTEM_EXTENSIONS
> +
>  # When CFLAGS isn't set at this stage and gcc is detected by the macro below,
>  # autoconf will automatically use CFLAGS="-O2 -g". Prevent that by using an
>  # empty default.