diff -U 1 -aur curlftpfs-0.9.2_orig/configure curlftpfs-0.9.2/configure
--- curlftpfs-0.9.2_orig/configure	2008-04-23 15:38:00.000000000 +0400
+++ curlftpfs-0.9.2/configure	2026-01-24 00:33:04.814518747 +0400
@@ -22427,7 +22427,7 @@
 }
 
 int
-main ()
+main (void)
 {
   time_t t, delta;
   int i, j;
@@ -22437,31 +22437,36 @@
      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++)
     {
       if (tz_strings[i])
-	putenv (tz_strings[i]);
+    putenv ((char*) tz_strings[i]);
 
       for (t = 0; t <= time_t_max - delta; t += delta)
-	if (! mktime_test (t))
-	  return 1;
+    if (! mktime_test (t))
+      return 1;
       if (! (mktime_test ((time_t) 1)
-	     && mktime_test ((time_t) (60 * 60))
-	     && mktime_test ((time_t) (60 * 60 * 24))))
-	return 1;
-
-      for (j = 1; 0 < j; j *= 2)
-	if (! bigtime_test (j))
-	  return 1;
-      if (! bigtime_test (j - 1))
-	return 1;
+         && mktime_test ((time_t) (60 * 60))
+         && mktime_test ((time_t) (60 * 60 * 24))))
+    return 1;
+
+      for (j = 1; ; j <<= 1)
+    if (! bigtime_test (j))
+      return 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 ());
 }