[gnome-online-accounts] build: use enable_telepathy variable

[Debarshi Ray <debarshir src gnome org>]

commit 1caec8278b786acff746672960ea5e9f1edb9ca3
Author: Dominique Leuenberger <dimstar opensuse org>
Date:   Thu Aug 22 22:42:04 2013 +0200

    build: use enable_telepathy variable
    
    Fix a copy/paste error and use enable_telepathy instead of
    enable_exchange for the Telepathy Provider.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=706614

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7278998..e1260e0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -315,7 +315,7 @@ AC_ARG_ENABLE([telepathy],
               [Enable Telepathy IM provider])],
               [],
               [enable_telepathy=yes])
-if test "$enable_exchange" != "no"; then
+if test "$enable_telepathy" != "no"; then
   AC_DEFINE(GOA_TELEPATHY_ENABLED, 1, [Enable Telepathy data provider])
 fi