* lib/gdb.exp (gdb_test_list_exact): Suggest use of double

quote pattern to avoid problems with Cygwin/mingw expect versions.
	* gdb.base/default.exp (show convenience): Use double
	quote pattern for regular expressions.

gdb/testsuite/ChangeLog

@@ -1,3 +1,10 @@
+2011-05-20  Pierre Muller  <muller@ics.u-strasbg.fr>
+
+	* lib/gdb.exp (gdb_test_list_exact): Suggest use of double
+	quote pattern to avoid problems with Cygwin/mingw expect versions.
+	* gdb.base/default.exp (show convenience): Use double
+	quote pattern for regular expressions.
+
 2011-05-20  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	Fix -readnow for -gdwarf-4 unused type units.

gdb/testsuite/gdb.base/default.exp

@@ -601,8 +601,8 @@ gdb_test "show confirm" "Whether to confirm potentially dangerous operations is
 # This is tricker as there are multiple internal convenience vars and we
 # can't assume any particular order.
 gdb_test_list_exact "show convenience" "show convenience" \
-    {[^\r\n]+[\r\n]+} \
-    {[^\r\n]+} \
+    "\[^\r\n\]+\[\r\n\]+" \
+    "\[^\r\n\]+" \
     { \
 	{$_sdata = void} \
 	{$_siginfo = void} \

gdb/testsuite/lib/gdb.exp

@@ -1099,8 +1099,8 @@ proc gdb_test_exact { args } {
 # of text per element and then strip trailing \r\n's.
 # Example:
 # gdb_test_list_exact "foo" "bar" \
-#     {[^\r\n]+[\r\n]+} \
-#     {[^\r\n]+} \
+#    "\[^\r\n\]+\[\r\n\]+" \
+#    "\[^\r\n\]+" \
 #     { \
 #	{expected result 1} \
 #	{expected result 2} \