Merge pull request #173736 from sikmir/html-tidy

html-tidy: fix cross-compilation

pkgs/tools/text/html-tidy/default.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, cmake, libxslt }:
+{ lib, stdenv, fetchFromGitHub, fetchpatch, cmake, libxslt, html-tidy }:
 
 stdenv.mkDerivation rec {
   pname = "html-tidy";
@@ -11,9 +11,18 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-ZMz0NySxzX2XHiqB8f5asvwjIG6kdIcq8Gb3EbAxBaU=";
   };
 
-  nativeBuildInputs = [ cmake libxslt/*manpage*/ ];
+  # https://github.com/htacg/tidy-html5/pull/1036
+  patches = (fetchpatch {
+    url = "https://github.com/htacg/tidy-html5/commit/e9aa038bd06bd8197a0dc049380bc2945ff55b29.diff";
+    sha256 = "sha256-Q2GjinNBWLL+HXUtslzDJ7CJSTflckbjweiSMCnIVwg=";
+  });
 
-  cmakeFlags = [];
+  nativeBuildInputs = [ cmake libxslt/*manpage*/ ]
+    ++ lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) html-tidy;
+
+  cmakeFlags = lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+    "-DHOST_TIDY=tidy"
+  ];
 
   # ATM bin/tidy is statically linked, as upstream provides no other option yet.
   # https://github.com/htacg/tidy-html5/issues/326#issuecomment-160322107