* Protect the true', false' and `__overrides' constants. Without

an ATprotect call, these could be garbage collected, leading to
  weird crashes or wrong results.

src/aterm-helper.pl

@@ -147,7 +147,8 @@ while (<STDIN>) {
         print HEADER "extern ATerm $name;\n";
         print IMPL "ATerm $name = 0;\n";
         $init .= "    $name = $value;\n"; 
-    }
+        $init .= "    ATprotect(&$name);\n";
+   }
 
     elsif (/^\s*init\s+(\w+)\s*$/) {
         $initFun = $1;