From 60ad423963e839838c72cd7a299eed0bf1ca00ff Mon Sep 17 00:00:00 2001
From: Dmitry Bogatov <serenity@kaction.cc>
Date: Wed, 16 Nov 2022 20:04:12 -0500
Subject: [PATCH] mpdecimal: init at 2.5.1

---
 .../libraries/mpdecimal/default.nix           | 47 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  2 +
 2 files changed, 49 insertions(+)
 create mode 100644 pkgs/development/libraries/mpdecimal/default.nix

diff --git a/pkgs/development/libraries/mpdecimal/default.nix b/pkgs/development/libraries/mpdecimal/default.nix
new file mode 100644
index 000000000000..5fa03b7083e2
--- /dev/null
+++ b/pkgs/development/libraries/mpdecimal/default.nix
@@ -0,0 +1,47 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "mpdecimal";
+  version = "2.5.1";
+  outputs = [ "out" "doc" ];
+
+  src = fetchurl {
+    url = "https://www.bytereef.org/software/mpdecimal/releases/mpdecimal-${version}.tar.gz";
+    hash = "sha256-n5zUwEH5m1xJ/7e1nZ8S2VtoPYhYVgiqVqYwdmeysh8=";
+  };
+
+  configureFlags = [ "LD=${stdenv.cc.targetPrefix}cc" ];
+
+  meta = {
+    description = "Library for arbitrary precision decimal floating point arithmetic";
+
+    longDescription =  ''
+      libmpdec is a fast C/C++ library for correctly-rounded arbitrary
+      precision decimal floating point arithmetic.  It is a complete
+      implementation of Mike Cowlishaw/IBM's General Decimal Arithmetic
+      Specification. The full specification is available here:
+
+      http://speleotrove.com/decimal/
+
+      libmpdec will - with minor restrictions - also conform to the IEEE
+      754-2008 Standard for Floating-Point Arithmetic, provided that the
+      appropriate context parameters are set.
+
+      libmpdec++ is a complete implementation of the General Decimal Arithmetic
+      Specification.  libmpdec++ is mostly a header library around libmpdec's C
+      functions.
+    '';
+
+    homepage = "https://www.bytereef.org/mpdecimal/index.html";
+
+    downloadPage = "https://www.bytereef.org/mpdecimal/download.html";
+
+    changelog = "https://www.bytereef.org/mpdecimal/changelog.html";
+
+    license = lib.licenses.bsd2;
+
+    maintainers = with lib.maintainers; [ kaction ];
+
+    platforms = lib.platforms.unix;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ba9454d502f5..2c3a4c51cfc4 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19622,6 +19622,8 @@ with pkgs;
 
   mpfi = callPackage ../development/libraries/mpfi { };
 
+  mpdecimal = callPackage ../development/libraries/mpdecimal { };
+
   mpfshell = callPackage ../development/tools/mpfshell { };
 
   # A GMP fork