[rygel] build: Fix output of tracker API version

[Jens Georg <jensgeorg src gnome org>]

commit bee5c6f78c5cc34510a3f331100c02ae2433d9a8
Author: Jens Georg <mail jensge org>
Date:   Sun Apr 24 20:33:11 2016 +0200

    build: Fix output of tracker API version
    
    Signed-off-by: Jens Georg <mail jensge org>

 configure.ac |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 0cae391..def6eaa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -422,7 +422,9 @@ AS_IF([test "x$enable_tracker_plugin" = "xyes"],
     trackerpkg=""
     m4_foreach([VERSION], [[1.0], [0.16], [0.15], [0.14]],
                  [PKG_CHECK_EXISTS([tracker-sparql-VERSION >= $TRACKER_SPARQL_REQUIRED_MIN],
-                                   [ trackerpkg="tracker-sparql-VERSION" ])
+                                   [ trackerpkg="tracker-sparql-VERSION"
+                                     tracker_api_version="VERSION"
+                                   ])
                  ])
 
     PKG_CHECK_MODULES([RYGEL_PLUGIN_TRACKER_DEPS],