changed system-calls to avoid namespace pollution

lang/cem/libcc.ansi/time/clock.c

@@ -34,7 +34,7 @@ struct rusage {
 	long	ru_nivcsw;		/* involuntary context switches */
 };
 
-void getrusage(int who, struct rusage *rusage);
+void _getrusage(int who, struct rusage *rusage);
 
 #elif	defined(_POSIX_SOURCE) || defined(__USG)
 
@@ -45,7 +45,7 @@ struct tms {
 	time_t	tms_cstime;		/* system time, children */
 };
 
-long times(struct tms *buffer);
+long _times(struct tms *buffer);
 
 #else					/* Version 7 UNIX */
 
@@ -56,7 +56,7 @@ struct tbuffer {
 	long child_system_time;
 };
 
-long times(struct tbuffer *buffer);
+long _times(struct tbuffer *buffer);
 
 #endif
 
@@ -66,20 +66,20 @@ clock(void)
 #if	defined(__BSD4_2)
 	struct rusage rusage;
 
-	getrusage(RUSAGE_SELF, &rusage);
+	_getrusage(RUSAGE_SELF, &rusage);
 
 	return (((unsigned long)rusage.ru_utime.tv_sec * CLOCKS_PER_SEC)
 		+ rusage.ru_utime.tv_usec);
 #elif	defined(_POSIX_SOURCE) || defined(__USG)
 	struct tms tms;
 
-	times(&tms);
+	_times(&tms);
 	/* Assume that time_t can be converted to clock_t for Sys5 */
 	return tms.tms_utime;
 #else
 	struct tbuffer tbuffer;
 
-	times(&tbuffer);
+	_times(&tbuffer);
 	return tbuffer.proc_user_time;
 #endif
 }

lang/cem/libcc.ansi/time/difftime.c

@@ -8,6 +8,7 @@
 double
 difftime(time_t time1, time_t time0)
 {
+	/* be careful: time_t is unsigned */
 	if (time0 > time1)
 		return - (double) (time0 - time1);
 	else	return (double) (time1 - time0);

lang/cem/libcc.ansi/time/misc.c

@@ -20,7 +20,7 @@ struct timezone {
 	int	tz_dsttime;	/* type of dst correction */
 };
 
-int gettimeofday(struct timeval *tp, struct timezone *tzp);
+int _gettimeofday(struct timeval *tp, struct timezone *tzp);
 
 #elif	!defined(_POSIX_SOURCE) && !defined(__USG)
 #if	!defined(_MINIX)		/* MINIX has no ftime() */
@@ -30,7 +30,7 @@ struct timeb {
 	short	timezone;
 	short	dstflag;
 };
-void ftime(struct timeb *bp);
+void _ftime(struct timeb *bp);
 #endif
 #endif
 
@@ -279,7 +279,7 @@ _tzset(void)
 	struct timeval tv;
 	struct timezone tz;
 
-	gettimeofday(&tv, &tz);
+	_gettimeofday(&tv, &tz);
 	_daylight = tz.tz_dsttime;
 	_timezone = tz.tz_minuteswest * 60;
 
@@ -288,7 +288,7 @@ _tzset(void)
 #if	!defined(_MINIX)		/* MINIX has no ftime() */
 	struct timeb time;
 
-	ftime(&time);
+	_ftime(&time);
 	_timezone = time.timezone * 60L;
 	_daylight = time.dstflag;
 #endif

lang/cem/libcc.ansi/time/time.c

@@ -19,14 +19,14 @@ struct timezone {
 	int	tz_dsttime;	/* type of dst correction */
 };
 
-int gettimeofday(struct timeval *tp, struct timezone *tzp);
+int _gettimeofday(struct timeval *tp, struct timezone *tzp);
 
 time_t
 time(time_t *timer)
 {
 	struct timeval tv;
 	struct timezone tz;
-	gettimeofday(&tv, &tz);
+	_gettimeofday(&tv, &tz);
 
 	if (timer) *timer = tv.tv_sec;
 	return tv.tv_sec;