+ # Disable languages that need other directories if these aren't available.
+ for i in $subdir_requires; do
+ test -f "$srcdir/gcc/$i/config-lang.in" && continue
+ case ,${enable_languages}, in
+ *,${language},*)
+ # Specifically requested language; tell them.
+ AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
+ ;;
+ *)
+ # Silently disable.
+ add_this_lang=no
+ ;;
+ esac
+ done
+