3 files changed, 24 insertions, 3 deletions
diff --git a/pkgs/development/ocaml-modules/awa/default.nix b/pkgs/development/ocaml-modules/awa/default.nix
index 4c92b58bdbc63..f1fbd02ba0f03 100644
--- a/pkgs/development/ocaml-modules/awa/default.nix
+++ b/pkgs/development/ocaml-modules/awa/default.nix
@@ -1,5 +1,5 @@
 { lib, buildDunePackage, fetchurl
-, ppx_sexp_conv, ppx_cstruct
+, ppx_sexp_conv
 , mirage-crypto, mirage-crypto-ec, mirage-crypto-rng, mirage-crypto-pk
 , x509, cstruct, cstruct-unix, cstruct-sexp, sexplib, eqaf
 , rresult, mtime, logs, fmt, cmdliner, base64
@@ -24,8 +24,6 @@ buildDunePackage rec {
     ppx_sexp_conv eqaf
   ];
 
-  buildInputs = [ ppx_cstruct ];
-
   doCheck = true;
   checkInputs = [ cstruct-unix cmdliner fmt ];
 
diff --git a/pkgs/development/ocaml-modules/pp_loc/default.nix b/pkgs/development/ocaml-modules/pp_loc/default.nix
new file mode 100644
index 0000000000000..147dd49f5d84a
--- /dev/null
+++ b/pkgs/development/ocaml-modules/pp_loc/default.nix
@@ -0,0 +1,22 @@
+{ lib, fetchurl, buildDunePackage }:
+
+buildDunePackage rec {
+  pname = "pp_loc";
+  version = "2.1.0";
+
+  minimalOCamlVersion = "4.08";
+
+  src = fetchurl {
+    url = "https://github.com/Armael/pp_loc/releases/download/v${version}/pp_loc-${version}.tbz";
+    hash = "sha256-L3NlBdQx6BpP6FGtMQ/ynsTNIMj9N+8FDZ5vEFC6p8s=";
+  };
+
+  doCheck = true;
+
+  meta = {
+    description = "Quote and highlight input fragments at a given source location";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.vbgl ];
+    homepage = "https://armael.github.io/pp_loc/pp_loc/";
+  };
+}
diff --git a/pkgs/development/ocaml-modules/ppx_tools/default.nix b/pkgs/development/ocaml-modules/ppx_tools/default.nix
index 2d5f73be42b85..7a07daf8ddcd5 100644
--- a/pkgs/development/ocaml-modules/ppx_tools/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_tools/default.nix
@@ -35,6 +35,7 @@ let param =
   "4.13" = v6_6;
   "4.14" = v6_6;
   "5.0" = v6_6;
+  "5.1" = v6_6;
 }.${ocaml.meta.branch};
 in