1 files changed, 12 insertions, 3 deletions
diff --git a/tests/pr220.test b/tests/pr220.test
index 25e1f0e5f..95212ab0e 100755
--- a/tests/pr220.test
+++ b/tests/pr220.test
@@ -1,5 +1,6 @@
 #! /bin/sh
-# Copyright (C) 2001, 2002, 2004, 2008  Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2004, 2008, 2010 Free Software Foundation,
+# Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -15,13 +16,19 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # Test for PR automake/220.
+# Test for problems when conditionals are not actually defined.
+# Check that the problems is diagnosed by configure.
+# This isn't perfect (ideally we'd like an error from autoconf),
+# but it is the best we can do.  It certainly makes it easier
+# to debug the problem.
+# Note that this should be also in the documentation.
 
 required=gcc
 . ./defs || Exit 1
 
 set -e
 
-cat >main.c <<EOF
+cat > main.c <<'EOF'
 int main() { return 0; }
 EOF
 
@@ -57,4 +64,6 @@ cd build
 # configure should fail since we've done something invalid.
 ../configure 2>stderr && { cat stderr >&2; Exit 1; }
 cat stderr >&2
-grep NEVER_TRUE stderr
+grep 'conditional.*NEVER_TRUE' stderr
+
+: