added disable-[protocol] support, largely provided by Miklos Nemeth

lib/cookie.c

@@ -79,6 +79,8 @@ Example set of cookies:
 
 #include "setup.h"
 
+#ifndef CURL_DISABLE_HTTP
+
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
@@ -761,6 +763,8 @@ int main(int argc, char **argv)
 
 #endif
 
+#endif /* CURL_DISABLE_HTTP */
+
 /*
  * local variables:
  * eval: (load-file "../curl-mode.el")