From 4819e2bfe059a5320ef858dc3abb68c9df99d020 Mon Sep 17 00:00:00 2001
From: Robert Scott <code@humanleg.org.uk>
Date: Mon, 1 Jan 2024 18:20:02 +0000
Subject: [PATCH] c-blosc: avoid vendored lz4, zlib & zstd, enable tests

---
 .../development/libraries/c-blosc/default.nix | 40 +++++++++++++++++--
 1 file changed, 37 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/libraries/c-blosc/default.nix b/pkgs/development/libraries/c-blosc/default.nix
index 7add6c636a70..1060e44af075 100644
--- a/pkgs/development/libraries/c-blosc/default.nix
+++ b/pkgs/development/libraries/c-blosc/default.nix
@@ -2,16 +2,23 @@
 , stdenv
 , fetchFromGitHub
 , cmake
+, testers
+
+, static ? stdenv.hostPlatform.isStatic
+
+, lz4
+, zlib
+, zstd
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "c-blosc";
   version = "1.21.5";
 
   src = fetchFromGitHub {
     owner = "Blosc";
     repo = "c-blosc";
-    rev = "v${version}";
+    rev = "v${finalAttrs.version}";
     sha256 = "sha256-bz922lWiap3vMy8qS9dmXa8zUg5NJlg0bx3+/xz7QAk=";
   };
 
@@ -25,11 +32,38 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
+  buildInputs = [
+    lz4
+    zlib
+    zstd
+  ];
+
+  cmakeFlags = [
+    "-DBUILD_STATIC=${if static then "ON" else "OFF"}"
+    "-DBUILD_SHARED=${if static then "OFF" else "ON"}"
+
+    "-DPREFER_EXTERNAL_LZ4=ON"
+    "-DPREFER_EXTERNAL_ZLIB=ON"
+    "-DPREFER_EXTERNAL_ZSTD=ON"
+
+    "-DBUILD_EXAMPLES=OFF"
+    "-DBUILD_BENCHMARKS=OFF"
+    "-DBUILD_TESTS=${if finalAttrs.finalPackage.doCheck then "ON" else "OFF"}"
+  ];
+
+  doCheck = !static;
+
+  passthru.tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
+
   meta = with lib; {
     description = "A blocking, shuffling and loss-less compression library";
     homepage = "https://www.blosc.org";
+    changelog = "https://github.com/Blosc/c-blosc/releases/tag/v${version}";
+    pkgConfigModules = [
+      "blosc"
+    ];
     license = licenses.bsd3;
     platforms = platforms.all;
     maintainers = with maintainers; [ ris ];
   };
-}
+})