[gnome-shell-extensions] windowsNavigator: fix build

[Giovanni Campagna <gcampagna src gnome org>]

commit 79a66c06791d4db09a47a9f080bcec74a1e9cd9b
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Tue Jan 18 22:54:33 2011 +0100

    windowsNavigator: fix build
    
    We need to flag this extension as recognized, else it fails when
    configuring.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6ef5eb4..4500fbc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -32,7 +32,7 @@ for e in $enable_extensions; do
 			ENABLED_EXTENSIONS="$ENABLED_EXTENSIONS $e"
 			ADDITIONAL_PACKAGES="gnome-desktop-3.0 >= 2.91.6"
 			;;
-		alternate-tab|example)
+		alternate-tab|example|windowsNavigator)
 			ENABLED_EXTENSIONS="$ENABLED_EXTENSIONS $e"
 			;;
 		*)