From 9d753df87bc9710a5d495178a0555ad0d8ca3f06 Mon Sep 17 00:00:00 2001
From: Bernardo Meurer <bernardo@meurer.org>
Date: Mon, 31 May 2021 17:28:25 -0700
Subject: [PATCH] kalk: init at 0.5.4

---
 pkgs/tools/misc/kalk/default.nix | 38 ++++++++++++++++++++++++++++++++
 pkgs/top-level/all-packages.nix  |  2 ++
 2 files changed, 40 insertions(+)
 create mode 100644 pkgs/tools/misc/kalk/default.nix

diff --git a/pkgs/tools/misc/kalk/default.nix b/pkgs/tools/misc/kalk/default.nix
new file mode 100644
index 000000000000..64fabd805a6d
--- /dev/null
+++ b/pkgs/tools/misc/kalk/default.nix
@@ -0,0 +1,38 @@
+{ lib
+, fetchFromGitHub
+, m4
+, rustPlatform
+}:
+rustPlatform.buildRustPackage rec {
+  pname = "kalk";
+  version = "0.5.4";
+
+  src = fetchFromGitHub {
+    owner = "PaddiM8";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-lHHnNiNy8L8GdjOj5EqtticnksPrCwhFoFatFrWEQJ4=";
+  };
+
+  cargoSha256 = "sha256-Qtip9CeurTM4aY67F5tSM3fis6W/dlnaIVMQ29UoBzc=";
+
+  nativeBuildInputs = [ m4 ];
+
+  outputs = [ "out" "lib" ];
+
+  postInstall = ''
+    moveToOutput "lib" "$lib"
+  '';
+
+  meta = with lib; {
+    homepage = "https://kalk.strct.net";
+    changelog = "https://github.com/PaddiM8/kalk/releases/tag/v${version}";
+    description = "A command line calculator";
+    longDescription = ''
+      A command line calculator that supports math-like syntax with user-defined
+      variables, functions, derivation, integration, and complex numbers
+    '';
+    license = licenses.mit;
+    maintainers = with maintainers; [ lovesegfault ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 07af5632d9a7..79da06464374 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2830,6 +2830,8 @@ in
 
   kaldi = callPackage ../tools/audio/kaldi { };
 
+  kalk = callPackage ../tools/misc/kalk { };
+
   kisslicer = callPackage ../tools/misc/kisslicer { };
 
   klaus = with python3Packages; toPythonApplication klaus;