From 1d0c3bde21b9e829cd1200c2935c2450a6abf725 Mon Sep 17 00:00:00 2001
From: Harinn <prinn.dev@pm.me>
Date: Wed, 6 May 2026 14:47:39 +0700
Subject: [PATCH] osmscout-server: fix build

---
 pkgs/by-name/os/osmscout-server/package.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/by-name/os/osmscout-server/package.nix b/pkgs/by-name/os/osmscout-server/package.nix
index abef0c0d53df..c35fde3b12b1 100644
--- a/pkgs/by-name/os/osmscout-server/package.nix
+++ b/pkgs/by-name/os/osmscout-server/package.nix
@@ -9,6 +9,7 @@
   libmicrohttpd,
   libosmscout,
   libpostal,
+  libtiff,
   marisa,
   osrm-backend,
   protobuf_21,
@@ -58,6 +59,7 @@ stdenv.mkDerivation (finalAttrs: {
     osrm-backend
     libmicrohttpd
     libpostal
+    libtiff
     sqlite
     marisa
     kyotocabinet
@@ -71,6 +73,9 @@ stdenv.mkDerivation (finalAttrs: {
     "CONFIG+=disable_mapnik" # Disable the optional mapnik backend
   ];
 
+  # valhalla 3.6 headers use std::ranges/std::views (C++20).
+  env.NIX_CFLAGS_COMPILE = "-std=c++20";
+
   meta = {
     description = "Maps server providing tiles, geocoder, and router";
     homepage = "https://github.com/rinigus/osmscout-server";