[glib] GCancellable: Make eventfd() fall back to pipes on EINVAL too

[Colin Walters <walters src gnome org>]

commit 182ed958618a098895eb07959c0fb77eb5dcd13c
Author: Colin Walters <walters verbum org>
Date:   Sun Jul 10 12:19:15 2011 -0400

    GCancellable: Make eventfd() fall back to pipes on EINVAL too
    
    https://bugzilla.gnome.org/show_bug.cgi?id=654232

 gio/gcancellable.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/gio/gcancellable.c b/gio/gcancellable.c
index f5cfdd9..2974663 100644
--- a/gio/gcancellable.c
+++ b/gio/gcancellable.c
@@ -249,9 +249,11 @@ g_cancellable_open_pipe (GCancellable *cancellable)
 	g_cancellable_write_cancelled (cancellable);
       return;
     }
-  else if (errno != ENOSYS)
-    return;
-  /* Fall through on ENOSYS */
+  else if (!(errno == ENOSYS || errno == EINVAL))
+    {
+      return;
+    }
+  /* Fall through on ENOSYS or EINVAL */
 #endif
   if (g_unix_open_pipe (priv->cancel_pipe, FD_CLOEXEC, NULL))
     {