/* Prototypes for functions the original K&R sources declared implicitly.
 * On a 32-bit host an implicit int return was pointer-sized; on x86-64 it is
 * not. Included with -include for every translation unit. */
char *imalloc(int, char *, ...);
char *mkstr(char *);
void amprintf(char *, ...);
void ameprintf(char *, ...);
void eprintf(char *, ...);