-char *editfile; /* Name of file being edited */
-char *sflag; /* Subject given from non tty */
-int outtty; /* True if standard output a tty */
-int intty; /* True if standard input a tty */
-char mbox[PATHSIZE]; /* Name of mailbox file */
-char *mailname; /* Name of system mailbox */
-char mailspace[PATHSIZE]; /* Space norm alloc'd for name */
-int uid; /* The invoker's user id */
-char mailrc[PATHSIZE]; /* Name of startup file */
-char deadletter[PATHSIZE]; /* Name of #/dead.letter */
-char homedir[PATHSIZE]; /* Path name of home directory */
-char myname[9]; /* My login id */
+char mailname[PATHSIZE]; /* Name of current file */
+char prevfile[PATHSIZE]; /* Name of previous file */
+char *homedir; /* Path name of home directory */
+char *myname; /* My login name */