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-rw-r--r--pkgs/applications/science/logic/prooftree/default.nix9
1 files changed, 4 insertions, 5 deletions
diff --git a/pkgs/applications/science/logic/prooftree/default.nix b/pkgs/applications/science/logic/prooftree/default.nix
index adb64f02c14f8..bb20477fd1788 100644
--- a/pkgs/applications/science/logic/prooftree/default.nix
+++ b/pkgs/applications/science/logic/prooftree/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "prooftree";
-  version = "0.13";
+  version = "0.14";
 
   src = fetchurl {
     url = "https://askra.de/software/prooftree/releases/prooftree-${version}.tar.gz";
-    sha256 = "0z1z4wqbqwgppkh2bm89fgy07a0y2m6g4lvcyzs09sm1ysklk2dh";
+    sha256 = "sha256-nekV2UnjibOk4h0jZ1jV7W5pE/hXWb3fUoLTJb3Jzc0=";
   };
 
   strictDeps = true;
@@ -14,11 +14,10 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ pkg-config ] ++ (with ocamlPackages; [ ocaml findlib camlp5 ]);
   buildInputs = [ ncurses ] ++ (with ocamlPackages; [ lablgtk ]);
 
-  dontAddPrefix = true;
-  configureFlags = [ "--prefix" "$(out)" ];
+  prefixKey = "--prefix ";
 
   meta = with lib; {
-    description = "A program for proof-tree visualization";
+    description = "Program for proof-tree visualization";
     mainProgram = "prooftree";
     longDescription = ''
       Prooftree is a program for proof-tree visualization during interactive