From 6904ffe643458e0c7dfc68731a4caeeccd020b2f Mon Sep 17 00:00:00 2001
From: Ivan Mincik <ivan.mincik@gmail.com>
Date: Thu, 11 Jan 2024 10:21:20 +0100
Subject: proj: add optional support to install proj-data resource files

---
 pkgs/development/libraries/proj/default.nix | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/proj/default.nix b/pkgs/development/libraries/proj/default.nix
index fedb1b003d96..759b39a026b9 100644
--- a/pkgs/development/libraries/proj/default.nix
+++ b/pkgs/development/libraries/proj/default.nix
@@ -1,11 +1,14 @@
 { lib
 , stdenv
+, callPackage
 , fetchFromGitHub
-, fetchpatch
+
+# install grid resource files from proj-data package
+, withProjData ? false
+
 , cmake
 , pkg-config
 , buildPackages
-, callPackage
 , sqlite
 , libtiff
 , curl
@@ -13,6 +16,7 @@
 , nlohmann_json
 , python3
 , cacert
+, proj-data
 }:
 
 stdenv.mkDerivation (finalAttrs: rec {
@@ -58,6 +62,10 @@ stdenv.mkDerivation (finalAttrs: rec {
 
   doCheck = true;
 
+  postInstall = lib.optionalString withProjData ''
+    cp --recursive ${proj-data}/* $out/share/proj/
+  '';
+
   passthru.tests = {
     python = python3.pkgs.pyproj;
     proj = callPackage ./tests.nix { proj = finalAttrs.finalPackage; };
-- 
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