[glib/glib-2-20] Fall back to inotify_init if inotify_init1 does not work

[Josselin Mouette <jmouette src gnome org>]

commit 86f5a93e4e91523eb7138eb6d9a06dc42a6878ea
Author: Josselin Mouette <joss debian org>
Date:   Wed Sep 23 18:50:06 2009 +0200

    Fall back to inotify_init if inotify_init1 does not work
    
    This fixes monitoring failing to work when glib is built on a 2.6.27+
    kernel but run on an older one.
    
    http://bugs.debian.org/544354
    https://bugzilla.gnome.org/show_bug.cgi?id=593775

 gio/inotify/inotify-kernel.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gio/inotify/inotify-kernel.c b/gio/inotify/inotify-kernel.c
index b0b85ae..6e559a7 100644
--- a/gio/inotify/inotify-kernel.c
+++ b/gio/inotify/inotify-kernel.c
@@ -193,8 +193,10 @@ gboolean _ik_startup (void (*cb)(ik_event_t *event))
 #ifdef HAVE_INOTIFY_INIT1
   inotify_instance_fd = inotify_init1 (IN_CLOEXEC);
 #else
-  inotify_instance_fd = inotify_init ();
+  inotify_instance_fd = -1;
 #endif
+  if (inotify_instance_fd < 0)
+    inotify_instance_fd = inotify_init ();
 
   if (inotify_instance_fd < 0)
     return FALSE;