(optim-comp) missing parenthesis around syntax '?' (due to := priority changes)

Src-commit: 8127bad99881288e8a08bca9f6f83cb0f5148c6e

Author: jfmc

core/engine/internals.pl

@@ -683,12 +683,13 @@
 :- impl_defined('$total_usage'/1).
 :- endif.
 
-:- export('$max_arity'/1).
-% :- if(defined(optim_comp)).
+:- if(defined(optim_comp)).
+% :- export('$max_arity'/1).
 % :- '$props'('$max_arity'/1, [impnat=cbool(get_max_arity)]).
-% :- else.
+:- else.
+:- export('$max_arity'/1).
 :- impl_defined('$max_arity'/1).
-% :- endif.
+:- endif.
 
 % ---------------------------------------------------------------------------
 :- doc(section, "Low level global variables").