From 13126ce0a06f429682287b01f0d687407672fd68 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Fri, 2 Oct 2020 22:14:24 +0200
Subject: [PATCH] coqPackages.dpdgraph: do not depend on camlp5 for recent
 versions of Coq

---
 pkgs/development/coq-modules/dpdgraph/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/coq-modules/dpdgraph/default.nix b/pkgs/development/coq-modules/dpdgraph/default.nix
index 54654f37bac..195a1c4eada 100644
--- a/pkgs/development/coq-modules/dpdgraph/default.nix
+++ b/pkgs/development/coq-modules/dpdgraph/default.nix
@@ -53,7 +53,8 @@ stdenv.mkDerivation {
 
   nativeBuildInputs = [ autoreconfHook ];
   buildInputs = [ coq ]
-  ++ (with coq.ocamlPackages; [ ocaml camlp5 findlib ocamlgraph ]);
+  ++ (with coq.ocamlPackages; [ ocaml findlib ocamlgraph ]
+    ++ stdenv.lib.optional (!stdenv.lib.versionAtLeast coq.coq-version "8.10") camlp5);
 
   # dpd_compute.ml uses deprecated Pervasives.compare
   # Versions prior to 0.6.5 do not have the WARN_ERR build flag