On Mon, Apr 27 2020, David Bremner wrote:

> It turns out the behaviour of inline functions in C header files is
> not a good idea, and can cause linking problems if the compiler
> decides not to inline them.  In principle this is solvable by using a
> "static inline" declaration, but this potentially makes a copy in
> every compilation unit. Since we don't actually care about the
> performance of this function, just use a non-inline function.

LGTM.

Tomi

> ---
>  util/zlib-extra.c | 7 +++++++
>  util/zlib-extra.h | 4 ++--
>  2 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/util/zlib-extra.c b/util/zlib-extra.c
> index 2d2d2414..3a75e504 100644
> --- a/util/zlib-extra.c
> +++ b/util/zlib-extra.c
> @@ -85,3 +85,10 @@ gz_error_string (util_status_t status, gzFile file)
>      else
>  	return util_error_string (status);
>  }
> +
> +const char *
> +gzerror_str(gzFile file)
> +{
> +    int dummy;
> +    return gzerror (file, &dummy);
> +}
> diff --git a/util/zlib-extra.h b/util/zlib-extra.h
> index 296dc914..e9925c98 100644
> --- a/util/zlib-extra.h
> +++ b/util/zlib-extra.h
> @@ -29,8 +29,8 @@ gz_error_string (util_status_t status, gzFile stream);
>  
>  /* Call gzerror with a dummy errno argument, the docs don't promise to
>   * support the NULL case */
> -inline const char *
> -gzerror_str(gzFile file) { int dummy; return gzerror (file, &dummy); }
> +const char *
> +gzerror_str(gzFile file);
>  
>  #ifdef __cplusplus
>  }
> -- 
> 2.26.2
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