1 files changed, 7 insertions, 1 deletions
diff --git a/pkgs/development/ocaml-modules/biocaml/default.nix b/pkgs/development/ocaml-modules/biocaml/default.nix
index de54c24b7742..be62a1c6d2cd 100644
--- a/pkgs/development/ocaml-modules/biocaml/default.nix
+++ b/pkgs/development/ocaml-modules/biocaml/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildDunePackage, fetchFromGitHub
+{ stdenv, buildDunePackage, fetchFromGitHub, fetchpatch
 , ounit, async, base64, camlzip, cfstream
 , core, ppx_jane, ppx_sexp_conv, rresult, uri, xmlm }:
 
@@ -17,6 +17,12 @@ buildDunePackage rec {
     sha256 = "1f19nc8ld0iv45jjnsvaah3ddj88s2n9wj8mrz726kzg85cfr8xj";
   };
 
+  # fix compilation without and disable -unsafe-string, needed for Ocaml 4.10:
+  patches = [ (fetchpatch {
+      url = "https://github.com/biocaml/biocaml/commit/597fa7b0d203684e45ffe03f56c74335b6173ffc.patch";
+      sha256 = "0b8jdg215cv2k4y3ww7vak2ag5v6v9w8b76qjivr5d1qxz47mqxv";
+  }) ];
+
   buildInputs = [ ppx_jane ppx_sexp_conv ];
   checkInputs = [ ounit ];
   propagatedBuildInputs = [ async base64 camlzip cfstream core rresult uri xmlm ];