[rygel] build: support tracker 0.18

[Jens Georg <jensgeorg src gnome org>]

commit a77f2bdd06a6cba5158e473a36281a3803e1916c
Author: Dominique Leuenberger <dimstar opensuse org>
Date:   Sun Nov 24 00:46:49 2013 +0100

    build: support tracker 0.18
    
    https://bugzilla.gnome.org/show_bug.cgi?id=715089

 configure.ac |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index bbaa10b..ef93d12 100644
--- a/configure.ac
+++ b/configure.ac
@@ -327,6 +327,13 @@ AS_IF([test "x$enable_tracker_plugin" = "xyes"],
                               [tracker_api_version="0.16"],
                               [])
           ])
+    AS_IF([test "x$[]tracker_api_version" = "x"],
+          [
+            PKG_CHECK_MODULES(TRACKER_SPARQL,
+                              tracker-sparql-0.18 >=  $TRACKER_SPARQL_REQUIRED_MIN,
+                              [tracker_api_version="0.18"],
+                              [])
+          ])
     AS_IF([test "x$enable_vala" = "xyes"],
           [VALA_CHECK_PACKAGES([tracker-sparql-$tracker_api_version])])