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#define stdout bstdout
char mode; /* '\0', 'e', 'f', 'h' */
char bflag; /* ignore multiple and trailing blanks */
char rflag; /* recurse down directory trees */
char mflag; /* pseudo flag: doing multiple files, one dir */
int anychange;
extern Biobuf stdout;
extern int binary;
#define MALLOC(t, n) ((t *)emalloc((n)*sizeof(t)))
#define REALLOC(p, t, n) ((t *)erealloc((void *)(p), (n)*sizeof(t)))
#define FREE(p) free((void *)(p))
#define MAXPATHLEN 1024
int mkpathname(char *, char *, char *);
void *emalloc(unsigned);
void *erealloc(void *, unsigned);
void diff(char *, char *, int);
void diffdir(char *, char *, int);
void diffreg(char *, char *);
Biobuf *prepare(int, char *);
void panic(int, char *, ...);
void check(Biobuf *, Biobuf *);
void change(int, int, int, int);
void flushchanges(void);
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