zend_auto_global_disable_jit missing in PHP 5.4.5

I'm working with a third-party PHP extension that makes a call to zend_auto_global_disable_jit. However, in PHP5.4.5, there is no zend_auto_global_disable_jit available, nor is it in its traditional header. Commenting out all zend_auto_global_disable_jit calls causes PHP to no longer recognize it as a valid extension, while leaving them in attempts for an invalid method to be called. The file in question is https://github.com/mtorromeo/runkit/blob/master/runkit.c line 305. As is relatively obvious, it's not part of a macro, and its removal should not affect whether the library is a PHP extension or not - perhaps it's based on PHP's static analysis? If it doesn't call the function, it would access a global, possibly before the global has been JIT initialized by the runtime. If this is the case, what is the replacement function for PHP 5.4.5? -- James Moore