From 5ea164c8db0fe96c3b365c1efd4dab5065b7c476 Mon Sep 17 00:00:00 2001
From: Jared Baur <jaredbaur@fastmail.com>
Date: Fri, 20 Sep 2024 22:21:41 -0700
Subject: [PATCH] libspng: fix cross compile

libpng is needed to build a test executable, not included in the final
output. Without libpng in buildInputs, we get the following error:
```
libspng-aarch64-unknown-linux-gnu> Run-time dependency libpng found: NO (tried pkgconfig and cmake)
libspng-aarch64-unknown-linux-gnu> Looking for a fallback subproject for the dependency libpng
libspng-aarch64-unknown-linux-gnu> tests/meson.build:28:10: ERROR: Automatic wrap-based subproject downloading is disabled
```
---
 pkgs/development/libraries/libspng/default.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/libspng/default.nix b/pkgs/development/libraries/libspng/default.nix
index 5377c75b1842..98e4aa0641ce 100644
--- a/pkgs/development/libraries/libspng/default.nix
+++ b/pkgs/development/libraries/libspng/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-BiRuPQEKVJYYgfUsglIuxrBoJBFiQ0ygQmAFrVvCz4Q=";
   };
 
-  doCheck = true;
+  doCheck = stdenv.buildPlatform.canExecute stdenv.hostPlatform;
 
   mesonBuildType = "release";
 
@@ -32,13 +32,15 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "dev" ];
 
+  strictDeps = true;
+
   nativeCheckInputs = [
     cmake
-    libpng
   ];
 
   buildInputs = [
     zlib
+    libpng
   ];
 
   nativeBuildInputs = [