From efa78245a3dbb7b06872fdc6d80902fde70342ca Mon Sep 17 00:00:00 2001
From: Nikolay Korotkiy <sikmir@disroot.org>
Date: Sat, 9 Jul 2022 15:35:17 +0300
Subject: [PATCH] libmd: enable on darwin

---
 pkgs/development/libraries/libmd/default.nix | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/libraries/libmd/default.nix b/pkgs/development/libraries/libmd/default.nix
index a429cb219d58..ad3d8f0cce40 100644
--- a/pkgs/development/libraries/libmd/default.nix
+++ b/pkgs/development/libraries/libmd/default.nix
@@ -1,14 +1,26 @@
-{ lib, stdenv, fetchurl, autoreconfHook }:
+{ lib, stdenv, fetchurl, fetchpatch, autoreconfHook }:
 
 stdenv.mkDerivation rec {
   pname = "libmd";
   version = "1.0.4";
 
   src = fetchurl {
-    url = "https://archive.hadrons.org/software/${pname}/${pname}-${version}.tar.xz";
+    urls = [
+      "https://archive.hadrons.org/software/libmd/libmd-${version}.tar.xz"
+      "https://libbsd.freedesktop.org/releases/libmd-${version}.tar.xz"
+    ];
     sha256 = "sha256-9RySEELjS+3e3tS3VVdlZVnPWx8kSAM7TB7sEcB+Uw8=";
   };
 
+  patches = [
+    # Drop aliases for SHA384 functions, because such aliases are not supported on Darwin.
+    (fetchpatch {
+      url = "https://github.com/macports/macports-ports/raw/8332f5dbcaf05a02bc31fbd4ccf735e7d5c9a5b0/devel/libmd/files/patch-symbol-alias.diff";
+      sha256 = "sha256-py5hMpKYKwtBzhWn01lFc2a6+OZN72YCYXyhg1qe6rg=";
+      extraPrefix = "";
+    })
+  ];
+
   nativeBuildInputs = [ autoreconfHook ];
 
   meta = with lib; {
@@ -18,6 +30,6 @@ stdenv.mkDerivation rec {
     description = "Message Digest functions from BSD systems";
     license = with licenses; [ bsd3 bsd2 isc beerware publicDomain ];
     maintainers = with maintainers; [ primeos ];
-    platforms = platforms.linux;
+    platforms = platforms.unix;
   };
 }