From 2d4e578c1291b13331dc18c77270d0ed406826db Mon Sep 17 00:00:00 2001
From: sternenseemann <sternenseemann@systemli.org>
Date: Sun, 14 Jul 2024 23:48:38 +0200
Subject: [PATCH 1/2] lerc: move to finalAttrs

We'll need to use finalPackage if we want to test for the presence of
pkg-config files via passthru.tests.
---
 pkgs/development/libraries/lerc/default.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/libraries/lerc/default.nix b/pkgs/development/libraries/lerc/default.nix
index f7bba5125a72..031f8531b1a9 100644
--- a/pkgs/development/libraries/lerc/default.nix
+++ b/pkgs/development/libraries/lerc/default.nix
@@ -5,7 +5,7 @@
 , cmake
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "lerc";
   version = "4.0.0";
 
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   src = fetchFromGitHub {
     owner = "esri";
     repo = "lerc";
-    rev = "v${version}";
+    rev = "v${finalAttrs.version}";
     hash = "sha256-IHY9QtNYsxPz/ksxRMZGHleT+/bawfTYNVRSTAuYQ7Y=";
   };
 
@@ -37,4 +37,4 @@ stdenv.mkDerivation rec {
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ dotlambda ];
   };
-}
+})

From e778af3e6a74523aabf80179f873b20241570130 Mon Sep 17 00:00:00 2001
From: sternenseemann <sternenseemann@systemli.org>
Date: Sun, 14 Jul 2024 23:50:06 +0200
Subject: [PATCH 2/2] lerc: expose available pkg-config modules via meta

---
 pkgs/development/libraries/lerc/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/libraries/lerc/default.nix b/pkgs/development/libraries/lerc/default.nix
index 031f8531b1a9..463344f5b7f6 100644
--- a/pkgs/development/libraries/lerc/default.nix
+++ b/pkgs/development/libraries/lerc/default.nix
@@ -3,6 +3,7 @@
 , fetchFromGitHub
 , fetchpatch
 , cmake
+, testers
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -31,10 +32,15 @@ stdenv.mkDerivation (finalAttrs: {
     cmake
   ];
 
+  passthru.tests.pkg-config = testers.hasPkgConfigModules {
+    package = finalAttrs.finalPackage;
+  };
+
   meta = {
     description = "C++ library for Limited Error Raster Compression";
     homepage = "https://github.com/esri/lerc";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ dotlambda ];
+    pkgConfigModules = [ "Lerc" ];
   };
 })