a prelimiary proxy cache support
diff --git a/auto/options b/auto/options
index e90e15a..8ec692e 100644
--- a/auto/options
+++ b/auto/options
@@ -52,6 +52,7 @@
 NGX_HTTP_PROXY_TEMP_PATH=
 NGX_HTTP_FASTCGI_TEMP_PATH=
 
+HTTP_CACHE=YES
 HTTP_CHARSET=YES
 HTTP_GZIP=YES
 HTTP_SSL=NO
@@ -165,6 +166,8 @@
         --with-ipv6)                     NGX_IPV6=YES               ;;
 
         --without-http)                  HTTP=NO                    ;;
+        --without-http-cache)            HTTP_CACHE=NO              ;;
+
         --http-log-path=*)               NGX_HTTP_LOG_PATH="$value" ;;
         --http-client-body-temp-path=*)  NGX_HTTP_CLIENT_TEMP_PATH="$value" ;;
         --http-proxy-temp-path=*)        NGX_HTTP_PROXY_TEMP_PATH="$value" ;;
@@ -337,6 +340,7 @@
                                      files
 
   --without-http                     disable HTTP server
+  --without-http-cache               disable HTTP cache
 
   --with-mail                        enable POP3/IMAP4/SMTP proxy module
   --with-mail_ssl_module             enable ngx_mail_ssl_module