Merge commit 'c546147d'

* commit 'c546147d':
  configure: Correctly recurse in do_check_deps()

See 7659f356.
Merged-by: James Almer <jamrial@gmail.com>

configure

@@ -734,7 +734,6 @@ is_in(){
 
 do_check_deps(){
     for cfg; do
-        cfg="${cfg#!}"
         enabled ${cfg}_checking && die "Circular dependency for $cfg."
         disabled ${cfg}_checking && continue
         enable ${cfg}_checking