<string.h> is ISO C, no need to #if it.

src/lib/common/file.c

@@ -32,9 +32,7 @@
  *     Steve McClure, 2000
  */
 
-#ifdef Rel4
 #include <string.h>
-#endif /* Rel4 */
 #include <fcntl.h>
 #include <signal.h>
 #include <stdlib.h>
@@ -50,9 +48,6 @@
 #include "common.h"
 #include "gen.h"
 
-#ifdef Rel4
-#include <unistd.h>
-#endif
 
 static void fillcache(struct empfile *ep, int start);
 

src/lib/common/log.c

@@ -40,9 +40,7 @@
 #include <fcntl.h>
 #include <stdarg.h>
 #include <stdio.h>
-#ifdef Rel4
 #include <string.h>
-#endif /* Rel4 */
 #include <time.h>
 #include "deity.h"
 #include "player.h"

src/lib/common/type.c

@@ -32,9 +32,7 @@
  *     Steve McClure, 2000
  */
 
-#ifdef Rel4
 #include <string.h>
-#endif /* Rel4 */
 #include "misc.h"
 #include "ship.h"
 #include "land.h"