[gnome-control-center/extensible-shell] Fixed window manager configure check (GNOME bug 619326)

[Frederic Peters <fpeters src gnome org>]

commit 30dcaf167adad8123223c11841257154cc2b4ab2
Author: Frédéric Péters <fpeters 0d be>
Date:   Fri May 21 23:02:45 2010 +0200

    Fixed window manager configure check (GNOME bug 619326)

 configure.ac |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 1e2c9df..806bf4b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -238,13 +238,13 @@ AC_ARG_WITH([window_manager],
             [with_window_manager=${withval}],
             [with_window_manager=metacity])
 
-AS_IF([test "x$with_window_manager" == "xmetacity"],
+AS_IF([test "x$with_window_manager" = "xmetacity"],
       [WM_REQUIRES="libmetacity-private >= 2.23.1"
        AC_DEFINE(HAVE_METACITY, 1, [defined if using metacity])],
-      [test "x$with_window_manager" == "xmutter"],
+      [test "x$with_window_manager" = "xmutter"],
       [WM_REQUIRES="libmutter-private >= 2.23.1"
        AC_DEFINE(HAVE_MUTTER, 1, [defined if using mutter])],
-      [AC_MSG_FAILURE([Unsuported window manager: "$with_window_manager"])])
+      [AC_MSG_FAILURE([Unsupported window manager: "$with_window_manager"])])
 
 PKG_CHECK_MODULES(WINDOW_MANAGER, $WM_REQUIRES)