Currently the AIX build fails with the following error :

src/hotspot/os/aix/os_aix.cpp:2305:19: error: cannot initialize a parameter of type 'size_t' (aka 'unsigned long') with an lvalue of type 'int ()'
  _page_sizes.add(os::vm_page_size);
                  ^~~~~~~~~~~~~~~~
src/hotspot/share/runtime/os.hpp:176:21: note: passing argument to parameter 'pagesize' here
    void add(size_t pagesize);
                    ^