From bbde40af3ed6f53d25410596ce0ed4347d0be053 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9ophane=20Hufschmitt?=
 <theophane.hufschmitt@tweag.io>
Date: Mon, 11 Apr 2022 10:20:36 +0200
Subject: [PATCH] Make it easy to build a static nix-find-roots from this
 source tree

Just `nix build .#nix-find-roots` (or `nix-build -A nix-find-roots`)
---
 flake.nix | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/flake.nix b/flake.nix
index c464b8f7c..b45502293 100644
--- a/flake.nix
+++ b/flake.nix
@@ -403,6 +403,23 @@
                   BINDIR=${placeholder "bin"}/bin
             '';
           };
+          nix-find-roots = prev.stdenv.mkDerivation {
+            name = "nix-find-roots-${version}";
+            inherit version;
+
+            src = "${self}/src/nix-find-roots";
+
+            CXXFLAGS = prev.lib.optionalString prev.stdenv.hostPlatform.isStatic "-static";
+
+            buildPhase = ''
+              $CXX $CXXFLAGS -std=c++17 nix-find-roots.cc -o nix-find-roots
+            '';
+
+            installPhase = ''
+              mkdir -p $out/bin
+              cp nix-find-roots $out/bin/
+            '';
+          };
         };
 
     in {
@@ -560,6 +577,7 @@
       packages = forAllSystems (system: {
         inherit (nixpkgsFor.${system}) nix;
       } // (nixpkgs.lib.optionalAttrs (builtins.elem system linux64BitSystems) {
+        inherit (nixpkgsFor.${system}.pkgsStatic) nix-find-roots;
         nix-static = let
           nixpkgs = nixpkgsFor.${system}.pkgsStatic;
         in with commonDeps nixpkgs; nixpkgs.stdenv.mkDerivation {