[brasero] build: support tracker 0.18

[Dominique Leuenberger <dleuen src gnome org>]

commit 201928e26dec6abd3d2f5302b82d55963d3080e6
Author: Dominique Leuenberger <dimstar opensuse org>
Date:   Sat Nov 23 21:55:06 2013 +0100

    build: support tracker 0.18
    
    https://bugzilla.gnome.org/show_bug.cgi?id=715079

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 20263bb..0514d6c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -388,7 +388,7 @@ AC_ARG_ENABLE(search,
 if test x"$enable_search" != "xno"; then
         # Try to figure out the tracker API version to use
         tracker_api="0.10"
-        m4_foreach([VERSION], [[0.10], [0.12], [0.14], [0.16]],
+        m4_foreach([VERSION], [[0.10], [0.12], [0.14], [0.16], [0.18]],
                               [PKG_CHECK_EXISTS([tracker-sparql-VERSION >= $TRACKER_REQUIRED],
                                                 [tracker_api="VERSION"])
                               ])