Date: Wed, 15 Dec 1999 14:14:23 +0100 From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de> To: freebsd-questions@freebsd.org Subject: mktime(), why does it fail? Message-ID: <19991215141423.A98888@internal>
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When trying to compile gnu tar-1.13, configure tries do determine
if mktime() works. This fails; the following program demonstrates why:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void main ()
{
time_t t;
struct tm tm;
/* Use the portable POSIX.1 specification "TZ=PST8PDT,M4.1.0,M10.5.0"
instead of "TZ=America/Vancouver" in order to detect the bug even
on systems that don't support the Olson extension, or don't have the
full zoneinfo tables installed. */
putenv ("TZ=PST8PDT,M4.1.0,M10.5.0");
tm.tm_year = 98;
tm.tm_mon = 3;
tm.tm_mday = 5;
tm.tm_hour = 2;
tm.tm_min = 0;
tm.tm_sec = 0;
tm.tm_isdst = -1;
t=mktime(&tm);
printf("%lu, ", t);
if (t== (time_t)-1) {
printf("Error\n");
exit (1);
}
printf("OK\n");
}
Now my question: Why does the mktime() call above not succeed under
FreeBSD-3.4-RC? I think it should...
-Andre
--
"In a world without walls and fences, who needs windows and gates?"
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