dart.media_kit_libs_linux: use packageRoot

{

  lib,

  stdenv,

  mimalloc,

}:

# 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 {

  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

  # Remove mimalloc download

  # 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

  postPatch = ''

    pushd ${src.passthru.packageRoot}

  ''

  + lib.optionalString (lib.versionAtLeast version "1.2.1") ''

    sed -i '/if(MIMALLOC_USE_STATIC_LIBS)/,/unset(MIMALLOC_USE_STATIC_LIBS CACHE)/c\set(MIMALLOC_LIB "${lib.getLib mimalloc}/lib/mimalloc.o" CACHE INTERNAL "")' 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

    sed -i '/# --\+/,/# --\+/c\set(MIMALLOC_LIB "${lib.getLib mimalloc}/lib/mimalloc.o")' linux/CMakeLists.txt

  ''

  + ''

    popd

  '';

  installPhase = ''