AW: AW: AW: AW: AW: Re: tinterval - operator problems o n AI X

I do not have the original thread where Andreas describes

the behavior

of mktime() on his machine. Andreas, can you suggest a

simple configure

test to be used?

#include <time.h>
int main()
{
struct tm tt, *tm=&tt;
int i = -50000000;
tm = localtime (&i);
i = mktime (tm);
if (i != -50000000) /* on AIX this check could also

be (i == -1) */

{
printf("ERROR: mktime(3) does not correctly support

datetimes before 1970\n");

return(1);
}
}

You don't need to put this check into configure, you can just
do the check after mktime() is used.

No, we need that info for the output functions that only use localtime.
The intent is, to not use DST before 1970 on platforms that don't have
mktime for dates before 1970.

Andreas