From c1674d2acefd098cd1892a2a64ba403450c61a7d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A2ju=20Mihai-Drosi?= <cajum.bugs@yandex.com>
Date: Wed, 2 Dec 2020 17:19:09 +0200
Subject: [PATCH] symbiflow-yosys: init at 0.8-6021-gd8b2d1a2

---
 .../compilers/symbiflow-yosys/default.nix     | 37 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  2 +
 2 files changed, 39 insertions(+)
 create mode 100644 pkgs/development/compilers/symbiflow-yosys/default.nix

diff --git a/pkgs/development/compilers/symbiflow-yosys/default.nix b/pkgs/development/compilers/symbiflow-yosys/default.nix
new file mode 100644
index 000000000000..b33003f312e4
--- /dev/null
+++ b/pkgs/development/compilers/symbiflow-yosys/default.nix
@@ -0,0 +1,37 @@
+{ stdenv
+, abc-verifier
+, fetchFromGitHub
+, yosys
+, plugins ? []
+}:
+
+let
+  localAbc-verifier = abc-verifier.overrideAttrs (_: rec {
+    pname = "abc-verifier";
+    version = "2020.06.22";
+
+    src = fetchFromGitHub {
+      owner  = "YosysHQ";
+      repo   = "abc";
+      rev    = "341db25668f3054c87aa3372c794e180f629af5d";
+      sha256 = "14cgv34vz5ljkcms6nrv19vqws2hs8bgjgffk5q03cbxnm2jxv5s";
+    };
+
+    passthru.rev = src.rev;
+  });
+in
+
+(yosys.overrideAttrs (oldAttrs: rec {
+  pname   = "symbiflow-yosys";
+  version = "0.9+2406";
+
+  src = fetchFromGitHub {
+    owner  = "SymbiFlow";
+    repo   = "yosys";
+    rev    = "d8b2d1a2b1a93057678cf49bb8f0329f191faba1";
+    sha256 = "1w8jnqzabvzixjllhb6ak2n2gmjvsn6qd996i7z70bsq5rgdkq9g";
+  };
+})).override {
+  abc-verifier = localAbc-verifier;
+  plugins = plugins;
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index bca234c0f59e..271db5dc468e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10419,6 +10419,8 @@ in
 
   symbiflow-vtr = callPackage ../development/compilers/symbiflow-vtr { };
 
+  symbiflow-yosys = callPackage ../development/compilers/symbiflow-yosys { };
+
   swiProlog = callPackage ../development/compilers/swi-prolog {
     inherit (darwin.apple_sdk.frameworks) Security;
     jdk = openjdk8; # TODO: remove override https://github.com/NixOS/nixpkgs/pull/89731