From c2e90c4433dacac61fd8f61ce6171c54acab2fc2 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Tue, 8 Dec 2020 21:50:10 +0100
Subject: [PATCH] ocamlformat: build legacy versions with OCaml 4.07

---
 pkgs/development/tools/ocaml/ocamlformat/generic.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/tools/ocaml/ocamlformat/generic.nix b/pkgs/development/tools/ocaml/ocamlformat/generic.nix
index 59c77f6e142..8fac26c2b3e 100644
--- a/pkgs/development/tools/ocaml/ocamlformat/generic.nix
+++ b/pkgs/development/tools/ocaml/ocamlformat/generic.nix
@@ -1,4 +1,4 @@
-{ lib, fetchurl, fetchzip, ocamlPackages
+{ lib, fetchurl, fetchzip, ocaml-ng
 , version
 , tarballName ? "ocamlformat-${version}.tbz",
 }:
@@ -22,6 +22,12 @@ let src =
   }
 ; in
 
+let ocamlPackages =
+  if lib.versionAtLeast version "0.14.3"
+  then ocaml-ng.ocamlPackages
+  else ocaml-ng.ocamlPackages_4_07
+; in
+
 with ocamlPackages;
 
 buildDunePackage rec {