[evolution-data-server/gnome-3-8] Be able to debug SMTP provider separately

[Milan Crha <mcrha src gnome org>]

commit 9eb475417c3bc5c8d13e99aaf574a1a457d3e4bc
Author: Milan Crha <mcrha redhat com>
Date:   Mon Jun 3 13:23:32 2013 +0200

    Be able to debug SMTP provider separately
    
    One can use CAMEL_DEBUG=smtp to debug only SMTP camel provider.

 camel/providers/smtp/camel-smtp-transport.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/camel/providers/smtp/camel-smtp-transport.c b/camel/providers/smtp/camel-smtp-transport.c
index f70eb8a..8c46bec 100644
--- a/camel/providers/smtp/camel-smtp-transport.c
+++ b/camel/providers/smtp/camel-smtp-transport.c
@@ -47,9 +47,7 @@
 #undef MIN
 #undef MAX
 
-extern gint camel_verbose_debug;
-
-#define d(x) (camel_verbose_debug ? (x) : 0)
+#define d(x) (camel_debug ("smtp") ? (x) : 0)
 
 /* Specified in RFC 821 */
 #define SMTP_PORT  25