From cc96f19e0efb90fe88517003bf40280cc15b2d2c Mon Sep 17 00:00:00 2001
From: Rick van Schijndel <rol3517@gmail.com>
Date: Sat, 31 Jul 2021 10:41:04 +0200
Subject: [PATCH] libgrss: support cross-compilation

I've tested that the native output hash stays the same
(with ca-derivations), so for native this should be fine.
---
 .../development/libraries/libgrss/default.nix | 22 ++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/libraries/libgrss/default.nix b/pkgs/development/libraries/libgrss/default.nix
index ab8346990feb..277a1860cde5 100644
--- a/pkgs/development/libraries/libgrss/default.nix
+++ b/pkgs/development/libraries/libgrss/default.nix
@@ -1,4 +1,6 @@
-{ lib, stdenv, fetchurl, fetchpatch, pkg-config, vala, gobject-introspection, gtk-doc, docbook_xsl, docbook_xml_dtd_412, glib, libxml2, libsoup, gnome }:
+{ lib, stdenv, fetchurl, fetchpatch, pkg-config, vala, gobject-introspection, gtk-doc
+, docbook_xsl, docbook_xml_dtd_412, glib, libxml2, libsoup, gnome, buildPackages
+}:
 
 stdenv.mkDerivation rec {
   pname = "libgrss";
@@ -20,10 +22,24 @@ stdenv.mkDerivation rec {
     })
   ];
 
-  nativeBuildInputs = [ pkg-config vala gobject-introspection gtk-doc docbook_xsl docbook_xml_dtd_412 ];
-  buildInputs = [ glib libxml2 libsoup ];
+  nativeBuildInputs = [
+    pkg-config
+    vala
+    gobject-introspection
+    gtk-doc
+    docbook_xsl
+    docbook_xml_dtd_412
+  ];
+
+  buildInputs = [
+    glib
+    libxml2
+    libsoup
+  ];
 
   configureFlags = [
+    "PKG_CONFIG=${buildPackages.pkg-config}/bin/${buildPackages.pkg-config.targetPrefix}pkg-config"
+  ] ++ lib.optionals (stdenv.buildPlatform == stdenv.hostPlatform) [
     "--enable-gtk-doc"
   ];