-extern int fclose PROTO((FILE *));
-extern int fflush PROTO((FILE *));
-extern int fgetc PROTO((FILE *));
-/* extern int fgetpos PROTO((FILE *, fpos_t *)); */
-extern int fprintf PROTO((FILE *, const char *, ...));
-extern int fputc PROTO((int, FILE *));
-extern int fputs PROTO((const char *, FILE *));
-extern size_t fread PROTO((void *, size_t, size_t, FILE *));
-extern int fscanf PROTO((FILE *, const char *, ...));
-extern int fseek PROTO((FILE *, long int, int));
-/* extern int fsetpos PROTO((FILE *, const fpos_t *)); */
-extern size_t fwrite PROTO((const void *, size_t, size_t, FILE *));
-extern void perror PROTO((const char *));
-extern int printf PROTO((const char *, ...));
-extern int puts PROTO((const char *));
-extern int remove PROTO((const char *));
-extern int rename PROTO((const char *, const char *));
-extern void rewind PROTO((FILE *));
-extern int scanf PROTO((const char *, ...));
-extern void setbuf PROTO((FILE *, char *));
-extern int setvbuf PROTO((FILE *, char *, int, size_t));
-extern int sscanf PROTO((const char *, const char *, ...));
+int fclose PROTO((FILE *));
+int fflush PROTO((FILE *));
+int fgetc PROTO((FILE *));
+int fprintf PROTO((FILE *, const char *, ...));
+int fputc PROTO((int, FILE *));
+int fputs PROTO((const char *, FILE *));
+size_t fread PROTO((void *, size_t, size_t, FILE *));
+int fscanf PROTO((FILE *, const char *, ...));
+int fseek PROTO((FILE *, long int, int));
+size_t fwrite PROTO((const void *, size_t, size_t, FILE *));
+void perror PROTO((const char *));
+int printf PROTO((const char *, ...));
+int puts PROTO((const char *));
+int remove PROTO((const char *));
+int rename PROTO((const char *, const char *));
+void rewind PROTO((FILE *));
+int scanf PROTO((const char *, ...));
+void setbuf PROTO((FILE *, char *));
+int setvbuf PROTO((FILE *, char *, int, size_t));
+int sscanf PROTO((const char *, const char *, ...));