Fix bug #64729: compilation failure on x32
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix bug #64729: compilation failure on x32

Conflicts:
	Zend/zend_alloc.c
Merge branch 'PHP-5.5'

* PHP-5.5:
  Fix bug #64729: compilation failure on x32