[cheese] Fix configure check for Xtst

[David King <davidk src gnome org>]

commit f6d3ce42d2ffcf17921861140517fd7bac945aa0
Author: David King <amigadave amigadave com>
Date:   Sat Jan 21 21:57:06 2012 +0000

    Fix configure check for Xtst

 configure.ac |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 47f003d..6ee330c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -99,10 +99,8 @@ AC_CHECK_HEADERS([sys/videoio.h])
 
 AC_CHECK_HEADER([X11/extensions/XTest.h],
   [AC_CHECK_LIB([Xtst], [XTestFakeKeyEvent],
-    [AC_DEFINE([HAVE_XTEST], [1], [Defined if the XTEST X extension is present])
-     AC_SUBST([XTEST_LIBS], ["-lX11 -lXtst"])])
-  ])
-AM_CONDITIONAL([HAVE_XTEST], test "x$HAVE_TEST" = "xyes")
+    [AC_SUBST([XTEST_LIBS], ["-lX11 -lXtst"])])])
+AM_CONDITIONAL([HAVE_XTEST], test "x$ac_cv_lib_Xtst_XTestFakeKeyEvent" = "xyes")
 
 PKG_CHECK_MODULES([CHEESE],
   [$GLIB_REQUIRED