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-rw-r--r--pkgs/development/ocaml-modules/ocamlgraph/default.nix4
1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/development/ocaml-modules/ocamlgraph/default.nix b/pkgs/development/ocaml-modules/ocamlgraph/default.nix
index 9f411dd2a6f..c7427558314 100644
--- a/pkgs/development/ocaml-modules/ocamlgraph/default.nix
+++ b/pkgs/development/ocaml-modules/ocamlgraph/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
     sha256 = "0bxqxzd5sd7siz57vhzb8bmiz1ddhgdv49gcsmwwfmd16mj4cryi";
   };
 
-  buildInputs = [ ocaml findlib ocamlPackages.lablgtk ];
+  buildInputs = [ ocaml findlib ocamlPackages.lablgtk ocamlPackages.camlp4 ];
 
   patches = ./destdir.patch;
 
@@ -37,7 +37,7 @@ stdenv.mkDerivation {
   meta = {
     homepage = http://ocamlgraph.lri.fr/;
     description = "Graph library for Objective Caml";
-    license = "GNU Library General Public License version 2, with the special exception on linking described in file LICENSE";
+    license = stdenv.lib.licenses.gpl2Oss;
     platforms = ocaml.meta.platforms;
     maintainers = [
       stdenv.lib.maintainers.kkallio