[glib/cherry-pick-f697f6aa] tests/timer: Skip test_timeval_to_iso8601_overflow if we can't overflow a GTimeVal

[Iain Lane <iainl src gnome org>]

commit 51e7219c54d07c098f7f1ab5b7b63dea5b1628f7
Author: Iain Lane <iainl gnome org>
Date:   Mon Sep 3 16:40:45 2018 +0000

    tests/timer: Skip test_timeval_to_iso8601_overflow if we can't overflow a GTimeVal
    
    On 32 bit systems, the size of a long might be the same as the size of
    an int. In that case, we won't be able to get an overflow when
    converting from a GTimeVal to a time_t. Skip the test for this in that
    case.
    
    Closes #1509
    
    
    (cherry picked from commit f697f6aa08dc5499ae1c5c9177976cc62d19a998)

 glib/tests/timer.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/glib/tests/timer.c b/glib/tests/timer.c
index 5ee191dd9..5b2e71144 100644
--- a/glib/tests/timer.c
+++ b/glib/tests/timer.c
@@ -258,6 +258,12 @@ test_timeval_to_iso8601_overflow (void)
   GTimeVal val;
   gchar *out = NULL;
 
+  if ((glong) G_MAXINT == G_MAXLONG)
+    {
+      g_test_skip ("G_MAXINT == G_MAXLONG - we can't make g_time_val_to_iso8601() overflow.");
+      return;
+    }
+
   g_unsetenv ("TZ");
 
   val.tv_sec = G_MAXLONG;