Re: [PATCH 1/2] http: Fix handling of missing CURLPROTO_*

> Commit aeae4db1 refactored the handling of the curl protocol restriction
> support into a function but failed to add a version check for older
> versions of curl that lack CURLPROTO_* support.
> This adds the missing check and at the same time converts it to a feature
> check instead of a version based check.
> This is done to ensure that vendor supported curl versions that have had
> CURLPROTO_* support backported are handled correctly.
>
> Signed-off-by: Tom G. Christensen <tgc@jupiterrise.com>
> ---
>  http.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/http.c b/http.c
> index e00264cff..569909e8a 100644
> --- a/http.c
> +++ b/http.c
> @@ -685,6 +685,7 @@ void setup_curl_trace(CURL *handle)
>  	curl_easy_setopt(handle, CURLOPT_DEBUGDATA, NULL);
>  }
>  
> +#ifdef CURLPROTO_HTTP
>  static long get_curl_allowed_protocols(int from_user)
>  {
>  	long allowed_protocols = 0;
> @@ -700,6 +701,7 @@ static long get_curl_allowed_protocols(int from_user)
>  
>  	return allowed_protocols;
>  }
> +#endif
>  
>  static CURL *get_curl_handle(void)
>  {
> @@ -798,7 +800,7 @@ static CURL *get_curl_handle(void)
>  #elif LIBCURL_VERSION_NUM >= 0x071101
>  	curl_easy_setopt(result, CURLOPT_POST301, 1);
>  #endif
> -#if LIBCURL_VERSION_NUM >= 0x071304
> +#ifdef CURLPROTO_HTTP
>  	curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS,
>  			 get_curl_allowed_protocols(0));
>  	curl_easy_setopt(result, CURLOPT_PROTOCOLS,