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-rw-r--r--cfrontend/Cshmgenproof3.v1
1 files changed, 1 insertions, 0 deletions
diff --git a/cfrontend/Cshmgenproof3.v b/cfrontend/Cshmgenproof3.v
index 7e3658b5..99450dee 100644
--- a/cfrontend/Cshmgenproof3.v
+++ b/cfrontend/Cshmgenproof3.v
@@ -1561,6 +1561,7 @@ Proof.
exploit match_cont_is_call_cont; eauto. intros [A B].
econstructor; split.
apply plus_one. constructor. eauto.
+ eapply external_call_symbols_preserved; eauto. exact symbols_preserved.
econstructor; eauto.
(* returnstate 0 *)