From 820442433915e4176861e558b95413e4b832b3fa Mon Sep 17 00:00:00 2001
From: Pierre-Marie Pédrot
Date: Thu, 29 Mar 2018 14:39:11 +0200
Subject: Fix #6631: Derive Plugin gives "Anomaly: more than one statement".

We use a lower level function that accesses the proof without raising an
anomaly. This is a direct candidate for backport, so I used a V82 API but
eventually this API should be cleaned up.
---
 test-suite/bugs/closed/6631.v | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 test-suite/bugs/closed/6631.v

(limited to 'test-suite')

diff --git a/test-suite/bugs/closed/6631.v b/test-suite/bugs/closed/6631.v
new file mode 100644
index 0000000000..100dc13fc8
--- /dev/null
+++ b/test-suite/bugs/closed/6631.v
@@ -0,0 +1,7 @@
+Require Import Coq.derive.Derive.
+
+Derive f SuchThat (f = 1 + 1) As feq.
+Proof.
+  transitivity 2; [refine (eq_refl 2)|].
+  transitivity 2.
+  2:abstract exact (eq_refl 2).
-- 
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