Check that thread stack temps are not already enabled before enabling them.

This fixes a regression introduced by 6c659fc2c7cd2da6d2b9a3d7c38597ad3821832a.

gdb/ChangeLog:

	* eval.c (evaluate_subexp): Check that thread stack temporaries
	are not already enabled before enabling them.

1 files changed, 2 insertions, 1 deletions

diff --git a/gdb/eval.c b/gdb/eval.c
index a13793c..c2ab879 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -69,7 +69,8 @@ evaluate_subexp (struct type *expect_type, struct expression *exp,
   int cleanup_temps = 0;
 
   if (*pos == 0 && target_has_execution
-      && exp->language_defn->la_language == language_cplus)
+      && exp->language_defn->la_language == language_cplus
+      && !thread_stack_temporaries_enabled_p (inferior_ptid))
     {
       cleanups = enable_thread_stack_temporaries (inferior_ptid);
       cleanup_temps = 1;