[evolution-data-server] Fix possible compiler warning of unused 'fd' variable

[Milan Crha <mcrha src gnome org>]

commit 92256647a76c37fb1f6283ea331ce6fd4a758c62
Author: Milan Crha <mcrha redhat com>
Date:   Wed Jun 18 08:49:43 2014 +0200

    Fix possible compiler warning of unused 'fd' variable

 camel/providers/imapx/camel-imapx-server.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/camel/providers/imapx/camel-imapx-server.c b/camel/providers/imapx/camel-imapx-server.c
index 762531a..df09eff 100644
--- a/camel/providers/imapx/camel-imapx-server.c
+++ b/camel/providers/imapx/camel-imapx-server.c
@@ -4182,7 +4182,9 @@ imapx_server_set_streams (CamelIMAPXServer *is,
 static void
 imapx_server_child_process_setup (gpointer user_data)
 {
+#ifdef TIOCNOTTY
        gint fd;
+#endif
 
        setsid ();