-#ifdef __STDC__
-extern int memcmp(const char *, const char *, int);
-extern int strcasecmp(const char *, const char *);
-extern int strcmp(const char *, const char *);
-extern int strcspn(const char *, const char *);
-extern int strlen(const char *);
-extern int strncasecmp(const char *, const char *, int);
-extern int strncmp(const char *, const char *, int);
-extern int strspn(const char *, const char *);
-extern char *index(const char *, int);
-extern char *memccpy(char *, const char *, int, int);
-extern char *memchr(const char *, int, int);
-extern char *memcpy(char *, const char *, int);
-extern char *memset(char *, int, int);
-extern char *rindex(const char *, int);
-extern char *strcat(char *, const char *);
-extern char *strchr(const char *, int);
-extern char *strcpy(char *, const char *);
-extern char *strdup(const char *);
-extern char *strerror(int);
-extern char *strncat(char *, const char *, int);
-extern char *strncpy(char *, const char *, int);
-extern char *strpbrk(const char *, const char *);
-extern char *strrchr(const char *, int);
-extern char *strsep(char *, const char *);
-extern char *strtok(char *, const char *);
-#else
-extern int memcmp();
-extern int strcasecmp();
-extern int strcmp();
-extern int strcspn();
-extern int strlen();
-extern int strncasecmp();
-extern int strncmp();
-extern int strspn();
-extern char *index();
-extern char *memccpy();
-extern char *memchr();
-extern char *memcpy();
-extern char *memset();
-extern char *rindex();
-extern char *strcat();
-extern char *strchr();
-extern char *strcpy();
-extern char *strdup();
-extern char *strerror();
-extern char *strncat();
-extern char *strncpy();
-extern char *strpbrk();
-extern char *strrchr();
-extern char *strsep();
-extern char *strtok();
-#endif