push sheeet

pkgs/development/compilers/dart/package-source-builders/media_kit_libs_linux/default.nix

@@ -0,0 +1,38 @@
+{
+  lib,
+  stdenv,
+}:
+
+# Implementation notes
+
+# The patch exploits the fact that the download part is enclosed with "# ---"
+# To use this module you will need to pass the CMake variable MIMALLOC_LIB
+# example: -DMIMALLOC_LIB=${pkgs.mimalloc}/lib/mimalloc.o
+
+# Direct link for the original CMakeLists.txt: https://raw.githubusercontent.com/media-kit/media-kit/main/libs/linux/media_kit_libs_linux/linux/CMakeLists.txt
+
+{ version, src, ... }:
+
+stdenv.mkDerivation {
+  pname = "media_kit_libs_linux";
+  inherit version src;
+  inherit (src) passthru;
+
+  dontBuild = true;
+
+  postPatch =
+    lib.optionalString (lib.versionAtLeast version "1.2.1") ''
+      sed -i '/if(MIMALLOC_USE_STATIC_LIBS)/,/unset(MIMALLOC_USE_STATIC_LIBS CACHE)/d' linux/CMakeLists.txt
+    ''
+    + lib.optionalString (lib.versionOlder version "1.2.1") ''
+      awk -i inplace 'BEGIN {opened = 0}; /# --*[^$]*/ { print (opened ? "]===]" : "#[===["); opened = !opened }; {print $0}' linux/CMakeLists.txt
+    '';
+
+  installPhase = ''
+    runHook preInstall
+
+    cp -r . $out
+
+    runHook postInstall
+  '';
+}