diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1518b5892d..21fe5f0cc0 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,7 @@
 2010-10-07  Doug Evans  <dje@google.com>
 
+	* cc-with-index.sh (output_file): Default to a.out.
+
 	* dwarf2read.c (mapped_index): Rename member index_table to
 	symbol_table and index_table_slots to symbol_table_slots.
 	All uses updated.
diff --git a/gdb/cc-with-index.sh b/gdb/cc-with-index.sh
index 4608629f39..70cc0ecacc 100644
--- a/gdb/cc-with-index.sh
+++ b/gdb/cc-with-index.sh
@@ -50,6 +50,7 @@ OBJCOPY=${OBJCOPY:-objcopy}
 
 have_link=unknown
 next_is_output_file=no
+output_file=a.out
 
 for arg in "$@"
 do