1 files changed, 45 insertions, 19 deletions
diff --git a/pkgs/development/ocaml-modules/sedlex/default.nix b/pkgs/development/ocaml-modules/sedlex/default.nix
index 685d4426cfc..0a18424acac 100644
--- a/pkgs/development/ocaml-modules/sedlex/default.nix
+++ b/pkgs/development/ocaml-modules/sedlex/default.nix
@@ -1,37 +1,63 @@
-{ stdenv, lib, fetchFromGitHub, ocaml, findlib, gen, ppx_tools_versioned, ocaml-migrate-parsetree }:
-
-if lib.versionOlder ocaml.version "4.02"
-then throw "sedlex is not available for OCaml ${ocaml.version}"
-else
+{ lib
+, fetchFromGitHub
+, fetchurl
+, buildDunePackage
+, ocaml
+, gen
+, ppxlib
+, uchar
+}:
+
+let
+  unicodeVersion = "14.0.0";
+  baseUrl = "https://www.unicode.org/Public/${unicodeVersion}";
+
+  DerivedCoreProperties = fetchurl {
+    url = "${baseUrl}/ucd/DerivedCoreProperties.txt";
+    sha256 = "sha256:1g77s8g9443dd92f82pbkim7rk51s7xdwa3mxpzb1lcw8ryxvvg3";
+  };
+  DerivedGeneralCategory = fetchurl {
+    url = "${baseUrl}/ucd/extracted/DerivedGeneralCategory.txt";
+    sha256 = "sha256:080l3bwwppm7gnyga1hzhd07b55viklimxpdsx0fsxhr8v47krnd";
+  };
+  PropList = fetchurl {
+    url = "${baseUrl}/ucd/PropList.txt";
+    sha256 = "sha256:08k75jzl7ws9l3sm1ywsj24qa4qvzn895wggdpp5nyj1a2wgvpbb";
+  };
+in
+buildDunePackage rec {
+  pname = "sedlex";
+  version = "2.5";
 
-stdenv.mkDerivation rec {
-  pname = "ocaml${ocaml.version}-sedlex";
-  version = "1.99.5";
+  minimalOCamlVersion = "4.08";
 
   src = fetchFromGitHub {
     owner = "ocaml-community";
     repo = "sedlex";
-    rev = "fb84e1766fc4b29e79ec40029ffee5cdb37b392f";
-    sha256 = "sha256-VhzlDTYBFXgKWT69PqZYLuHkiaDwzhmyX2XfaqzHFl4=";
+    rev = "v${version}";
+    sha256 = "sha256:062a5dvrzvb81l3a9phljrhxfw9nlb61q341q0a6xn65hll3z2wy";
   };
 
-  nativeBuildInputs = [ ocaml findlib ];
-
-  propagatedBuildInputs = [ gen ocaml-migrate-parsetree ppx_tools_versioned ];
-
-  strictDeps = true;
+  propagatedBuildInputs = [
+    gen uchar ppxlib
+  ];
 
-  buildFlags = [ "all" "opt" ];
+  preBuild = ''
+    rm src/generator/data/dune
+    ln -s ${DerivedCoreProperties} src/generator/data/DerivedCoreProperties.txt
+    ln -s ${DerivedGeneralCategory} src/generator/data/DerivedGeneralCategory.txt
+    ln -s ${PropList} src/generator/data/PropList.txt
+  '';
 
-  createFindlibDestdir = true;
+  doCheck = true;
 
   dontStrip = true;
 
   meta = {
     homepage = "https://github.com/ocaml-community/sedlex";
+    changelog = "https://github.com/ocaml-community/sedlex/raw/v${version}/CHANGES";
     description = "An OCaml lexer generator for Unicode";
     license = lib.licenses.mit;
-    inherit (ocaml.meta) platforms;
-    maintainers = [ lib.maintainers.vbgl ];
+    maintainers = [ lib.maintainers.marsam ];
   };
 }