-void *memchr(const void *, int, size_t);
-int memcmp(const void *, const void *, size_t);
-void *memcpy(void *, const void *, size_t);
-void *memmove(void *, const void *, size_t);
-void *memset(void *, int, size_t);
-char *strcat(char *, const char *);
-char *strchr(const char *, int);
-int strcmp(const char *, const char *);
-int strcoll(const char *, const char *);
-char *strcpy(char *, const char *);
-size_t strcspn(const char *, const char *);
-char *strerror(int);
-size_t strlen(const char *);
-char *strncat(char *, const char *, size_t);
-int strncmp(const char *, const char *, size_t);
-char *strncpy(char *, const char *, size_t);
-char *strpbrk(const char *, const char *);
-char *strrchr(const char *, int);
-size_t strspn(const char *, const char *);
-char *strstr(const char *, const char *);
-char *strtok(char *, const char *);
-size_t strxfrm(char *, const char *, size_t);
-
-#else
-
-void *memchr();
-int memcmp();
-void *memcpy();
-void *memmove();
-void *memset();
-char *strcat();
-char *strchr();
-int strcmp();
-int strcoll();
-char *strcpy();
-size_t strcspn();
-char *strerror();
-size_t strlen();
-char *strncat();
-int strncmp();
-char *strncpy();
-char *strpbrk();
-char *strrchr();
-size_t strspn();
-char *strstr();
-char *strtok();
-size_t strxfrm();
-
-#endif
+__BEGIN_DECLS
+void *memchr __P((const void *, int, size_t));
+int memcmp __P((const void *, const void *, size_t));
+void *memcpy __P((void *, const void *, size_t));
+void *memmove __P((void *, const void *, size_t));
+void *memset __P((void *, int, size_t));
+char *strcat __P((char *, const char *));
+char *strchr __P((const char *, int));
+int strcmp __P((const char *, const char *));
+int strcoll __P((const char *, const char *));
+char *strcpy __P((char *, const char *));
+size_t strcspn __P((const char *, const char *));
+char *strerror __P((int));
+size_t strlen __P((const char *));
+char *strncat __P((char *, const char *, size_t));
+int strncmp __P((const char *, const char *, size_t));
+char *strncpy __P((char *, const char *, size_t));
+char *strpbrk __P((const char *, const char *));
+char *strrchr __P((const char *, int));
+size_t strspn __P((const char *, const char *));
+char *strstr __P((const char *, const char *));
+char *strtok __P((char *, const char *));
+size_t strxfrm __P((char *, const char *, size_t));