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--- configure
+++ configure
@@ -10518,6 +10791,7 @@
# endif
#endif
+#include <limits.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
@@ -10666,12 +10940,15 @@
isn't worth using anyway. */
alarm (60);
- for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
- continue;
- time_t_max--;
- if ((time_t) -1 < 0)
- for (time_t_min = -1; (time_t) (time_t_min * 2) < 0; time_t_min *= 2)
- continue;
+ for (;;)
+ {
+ t = (time_t_max << 1) + 1;
+ if (t <= time_t_max)
+ break;
+ time_t_max = t;
+ }
+ time_t_min = - ((time_t) ~ (time_t) 0 == (time_t) -1) - time_t_max;
+
delta = time_t_max / 997; /* a suitable prime number */
for (i = 0; i < N_STRINGS; i++)
{
@@ -10686,10 +10963,12 @@
&& mktime_test ((time_t) (60 * 60 * 24))))
return 1;
- for (j = 1; 0 < j; j *= 2)
+ for (j = 1; ; j <<= 1)
if (! bigtime_test (j))
return 1;
- if (! bigtime_test (j - 1))
+ else if (INT_MAX / 2 < j)
+ break;
+ if (! bigtime_test (INT_MAX))
return 1;
}
return ! (irix_6_4_bug () && spring_forward_gap () && year_2050_test ());
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