[binutils-gdb] Check for readline support in gdb.base/history-duplicates.exp.

[Sandra Loosemore <sandra at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0588c79688b061699500f317e193bbb3fe50c41d

commit 0588c79688b061699500f317e193bbb3fe50c41d
Author: Sandra Loosemore <sandra@codesourcery.com>
Date:   Mon Dec 14 15:22:12 2015 -0800

    Check for readline support in gdb.base/history-duplicates.exp.
    
    2015-12-14  Sandra Loosemore  <sandra@codesourcery.com>
    
    	gdb/testsuite/
    	* gdb.base/history-duplicates.exp: Skip if no readline support.

Diff:
---
 gdb/testsuite/ChangeLog                       | 4 ++++
 gdb/testsuite/gdb.base/history-duplicates.exp | 9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index b46ccbd..56c3c47 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2015-12-14  Sandra Loosemore  <sandra@codesourcery.com>
 
+	* gdb.base/history-duplicates.exp: Skip if no readline support.
+
+2015-12-14  Sandra Loosemore  <sandra@codesourcery.com>
+
 	* gdb.base/gdbinit-history.exp: Skip for remote-host testing.
 
 2015-12-14  Sandra Loosemore  <sandra@codesourcery.com>
diff --git a/gdb/testsuite/gdb.base/history-duplicates.exp b/gdb/testsuite/gdb.base/history-duplicates.exp
index 11bb1ed..1c3c2c2 100644
--- a/gdb/testsuite/gdb.base/history-duplicates.exp
+++ b/gdb/testsuite/gdb.base/history-duplicates.exp
@@ -51,9 +51,16 @@ proc run_print_on_each_thing { things } {
     }
 }
 
-# By default the option is set to 0.
 gdb_exit
 gdb_start
+
+# These tests require readline support.
+if { ![readline_is_used] } {
+    unsupported "readline isn't used."
+    return -1
+}
+
+# By default the option is set to 0.
 gdb_test "show history remove-duplicates" "is 0\\."
 
 # Test the "unlimited" setting.