-extern int curl_ssl_verify;
-extern char *ssl_cert;
-#if LIBCURL_VERSION_NUM >= 0x070902
-extern char *ssl_key;
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
-extern char *ssl_capath;
-#endif
-extern char *ssl_cainfo;
-extern long curl_low_speed_limit;
-extern long curl_low_speed_time;
-
-extern struct curl_slist *pragma_header;
-extern struct curl_slist *no_range_header;
+static inline int missing__target(int code, int result)
+{
+ return /* file:// URL -- do we ever use one??? */
+ (result == CURLE_FILE_COULDNT_READ_FILE) ||
+ /* http:// and https:// URL */
+ (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) ||
+ /* ftp:// URL */
+ (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE)
+ ;
+}
+
+#define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
+
+extern int http_fetch_ref(const char *base, const char *ref, unsigned char *sha1);