rewrite check for bad memory in debug_can_save_memory -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-01-15 Ben Wing <ben@xemacs.org> * emacs.c: * emacs.c (debug_can_access_memory): When checking for bad memory, we need to read all bytes from memory; try even harder to avoid the possibility that a super-optimizing compiler will optimize away the memory reads.