--- dtime.c.orig	Sat Sep 14 07:15:25 1991
+++ dtime.c	Tue Dec 18 10:32:09 2007
@@ -26,13 +26,13 @@ extern long timezone;
 #include <sys/timeb.h>
 #endif /*SYS5*/
 
-extern long time();
+extern time_t time(time_t *);
 struct tm* localtime();
 
 struct tws*
 dtwstime()
     {
-    long clock;
+    time_t clock;
 
     (void) time( &clock );
     return dlocaltime( &clock );
@@ -40,7 +40,7 @@ dtwstime()
 
 struct tws*
 dlocaltime( clock )
-    long* clock;
+    time_t* clock;
     {
     register struct tm* tm;
 #ifndef SYS5
@@ -48,7 +48,7 @@ dlocaltime( clock )
 #endif not SYS5
     static struct tws tw;
 
-    if ( clock == (long*) 0 )
+    if ( clock == 0 )
 	return (struct tws*) 0;
     tw.tw_flags = TW_NULL;