diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 5739a8e72d..a3ae15e00a 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-07-29  Pedro Alves  <pedro@codesourcery.com>
+
+	* lib/gdb.exp (gdb_init): Set LC_ALL and LANG to C in the
+	environment.
+
 2010-07-28  Tom Tromey  <tromey@redhat.com>
 
 	PR python/11060:
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 2f57ffb1c6..04e00e2007 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -2687,6 +2687,11 @@ proc gdb_init { args } {
 	set banned_variables_traced 1
     }
 
+    # We set LC_ALL and LANG to C so that we get the same messages as
+    # expected.
+    setenv LC_ALL C
+    setenv LANG C
+
     return [eval default_gdb_init $args];
 }