[PATCH 1/1] testsuite: skip confirmation in 'gdb_reinitialize_dir'

[Stephan Rohr <stephan.rohr@intel.com>]

From: "Rohr, Stephan" <stephan.rohr@intel.com>

Some shells automatically confirm the 'dir' command:

  (gdb) dir
  Reinitialize source path to empty? (y or n)
    [answered Y; input not from terminal]
  Source directories searched: $cdir;$cwd
  (gdb) y
  dir <...>/gdb/testsuite/gdb.base
  Undefined command: "y".  Try "help".

For example, this reprdocues on a MinGW32 environment.  Skip sending
'y' if the command is already confirmed.
---
 gdb/testsuite/lib/gdb.exp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 410f99e3350..05101500eb9 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -2238,8 +2238,10 @@ proc gdb_reinitialize_dir { subdir } {
     }
     send_gdb "dir\n"
     gdb_expect 60 {
-	-re "Reinitialize source path to empty.*y or n. " {
-	    send_gdb "y\n" answer
+	-re "Reinitialize source path to empty.*y or n.\(\\\s.answered Y; input not from terminal.\)?" {
+	    if {![info exists expect_out(1,string)]} {
+		send_gdb "y\n" answer
+	    }
 	    gdb_expect 60 {
 		-re "Source directories searched.*$gdb_prompt $" {
 		    send_gdb "dir $subdir\n"
-- 
2.34.1

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