Passed cgi from disable to autodetected

configure.ml

@@ -29,7 +29,7 @@ Optional features:
  expat                 support for the expat XML parser
  curl                  support for the libcurl library
  netclient             support for the netclient library
- cgi                   support for the cgi library [default: false]
+ cgi                   support for the cgi library 
 
 OCaml/CDuce interface:
  --mliface=DIR         build the interface with the OCaml sources in DIR
@@ -55,7 +55,7 @@ let features =
     "expat", ref `auto;
     "curl", ref `auto;
     "netclient", ref `auto;
-    "cgi", ref `no;
+    "cgi", ref `auto;
     "pxp_wlex", ref `no ]
   
 let vars = 
@@ -244,7 +244,7 @@ let pxp,expat =
 
 let cgi =
     if not(cgi) then
-        (warning "No package to build dtd2cduce and the web interface";
+        (warning "No cgi package found: dtd2cduce and the web interface won't be built";
         false)
     else true