emacs: Fatal malloc_jumpstart() error

Emacs fails with the error Fatal malloc_jumpstart() error

Black Magic

In a Terminal window type

 $ sudo mv /usr/bin/emacs-i386 /usr/bin/emacs-i386.backup $ sudo /usr/libexec/dumpemacs -d $ emacs --version GNU Emacs 22.1.1 ... 
(Here, $ is the shell prompt.)

Once youve checked all is OK you can remove the backup

$ sudo rm /usr/bin/emacs-i386.backup