[grilo-plugins] magnatune: Fix build if grlnet isn't present

[Bastien Nocera <hadess src gnome org>]

commit b59ed0eaaa907614dd367993065d3af78254573f
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Apr 9 16:31:27 2014 +0200

    magnatune: Fix build if grlnet isn't present
    
    https://bugzilla.gnome.org/show_bug.cgi?id=727901

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2ad2cee..1625f54 100644
--- a/configure.ac
+++ b/configure.ac
@@ -809,7 +809,7 @@ AC_ARG_ENABLE(magnatune,
                 esac
         ],
         [
-                if test "x$HAVE_SQLITE" = "xyes"; then
+                if test "x$HAVE_SQLITE" = "xyes" -a "x$HAVE_GRLNET" = "xyes"; then
                   enable_magnatune=yes
                 else
                   enable_magnatune=no