[tracker] build: Fixes build error when supplying nautilis extensions directory

[Martyn James Russell <mr src gnome org>]

commit b14c908c80ae0adae999cc3077f508b2e5f55190
Author: Martyn Russell <martyn lanedo com>
Date:   Mon Dec 3 14:05:04 2012 +0000

    build: Fixes build error when supplying nautilis extensions directory

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 93fe37b..414f493 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1350,7 +1350,7 @@ if test "x$have_tracker_nautilus_extension" = "xyes"; then
    if test "x$with_nautilus_extensions_dir" = "x"; then
       tracker_nautilus_extension_install_dir=`$PKG_CONFIG --variable=extensiondir libnautilus-extension`
    else
-      tracker_nautilus_extension_install_dir="$with_nautilus_extension_install_dir"
+      tracker_nautilus_extension_install_dir="$with_nautilus_extensions_dir"
    fi
 
    TRACKER_NAUTILUS_EXTENSION_INSTALL_DIR="$tracker_nautilus_extension_install_dir"