* on any system.
*/
extern char *buildmimeproc;
+extern char *backup_prefix;
extern char *catproc;
extern char *components;
extern char *context;
extern char *replgroupcomps;
extern char *rmfproc;
extern char *rmmproc;
+extern char *sendmail;
extern char *sendproc;
extern char *showmimeproc;
extern char *showproc;