imagelol: fix darwin and use system libpng (#454413)

  fetchFromGitHub,

  fetchpatch,

  cmake,

  libpng,

  stb,

}:

stdenv.mkDerivation rec {

      url = "https://github.com/MCredstoner2004/ImageLOL/commit/013fb1f901d88f5fd21a896bfab47c7fff0737d7.patch";

      hash = "sha256-RVaG2xbUqE4CxqI2lhvug2qihT6A8vN+pIfK58CXLDw=";

      includes = [ "imagelol/ImageLOL.inl" ];

      # change lib/ for imagelol

      stripLen = 2;

      extraPrefix = "imagelol/";

    })

    # use system libraries instead of bundled versions

    ./use-system-libs.patch

  ];

  # fix for case-sensitive filesystems

  postPatch = ''

    mv imagelol src

    substituteInPlace CMakeLists.txt \

      --replace 'add_subdirectory("imagelol")' 'add_subdirectory("src")'

      --replace-fail 'add_subdirectory("imagelol")' 'add_subdirectory("src")'

    substituteInPlace External/zlib-no-examples/CMakeLists.txt \

      --replace-fail "cmake_minimum_required(VERSION 2.4.4)" "cmake_minimum_required(VERSION 3.10)"

    substituteInPlace External/libpng/CMakeLists.txt \

      --replace-fail "cmake_minimum_required(VERSION 3.1)" "cmake_minimum_required(VERSION 3.10)" \

      --replace-fail "cmake_policy(VERSION 3.1)" "cmake_policy(VERSION 3.10)"

    # use system stb headers

    substituteInPlace External/stb_image-cmake/CMakeLists.txt \

      --replace-fail '"''${CMAKE_CURRENT_SOURCE_DIR}/../stb"' '"${stb}/include/stb"'

    # remove bundled libraries

    rm -r External/zlib External/zlib-no-examples External/libpng External/stb

  '';

  nativeBuildInputs = [ cmake ];

  buildInputs = [

    libpng

    stb

  ];

  installPhase = ''

    mkdir -p $out/bin

    cp ./ImageLOL $out/bin

    runHook preInstall

    install -Dm755 ImageLOL -t $out/bin

    runHook postInstall

  '';

  cmakeFlags = [

    (lib.cmakeFeature "CMAKE_C_FLAGS" "-std=gnu90")

  ]

  ++ lib.optional (

    stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isAarch64

  ) "-DPNG_ARM_NEON=off";

  meta = with lib; {

    homepage = "https://github.com/MCredstoner2004/ImageLOL";

    description = "Simple program to store a file into a PNG image";

    license = licenses.mit;

    maintainers = [ ];

    platforms = platforms.unix;

    broken = stdenv.hostPlatform.isDarwin;

    mainProgram = "ImageLOL";

  };

}

--- a/CMakeLists.txt

+++ b/CMakeLists.txt

@@ -3,26 +3,12 @@

 project(ImageLOL VERSION 0.0)

 set(CMAKE_CXX_STANDARD 20)

 set(CMAKE_CXX_STANDARD_REQUIRED True)

-include_directories("External/zlib" "External/libpng")

 add_subdirectory("External/stb_image-cmake")

-set(SKIP_INSTALL_ALL ON CACHE BOOL "")

-add_subdirectory("External/zlib-no-examples")

-

-set(PNG_BUILD_ZLIB ON CACHE BOOL "")

-link_libraries(zlibstatic)

-get_target_property(ZLIB_INCLUDE_DIRECTORIES zlibstatic INCLUDE_DIRECTORIES)

-include_directories(${ZLIB_INCLUDE_DIRECTORIES})

-set(ZLIB_INCLUDE_DIR ${ZLIB_INCLUDE_DIRECTORIES} CACHE PATH "")

-set(PNG_SHARED OFF CACHE BOOL "")

-set(PNG_EXECUTABLES OFF CACHE BOOL "")

-add_subdirectory("External/libpng")

-add_dependencies(png_static zlibstatic zlib)

-add_dependencies(genfiles zlibstatic)

-unset(SKIP_INSTALL_ALL CACHE)

-get_target_property(LIBPNG_INCLUDE_DIRECTORIES png_static INCLUDE_DIRECTORIES)

+find_package(PNG REQUIRED)

+set(LIBPNG_INCLUDE_DIRECTORIES ${PNG_INCLUDE_DIRS})

 add_subdirectory("imagelol")

 add_executable(ImageLOL main.cpp)

 target_include_directories(ImageLOL PRIVATE ${LIBPNG_INCLUDE_DIRECTORIES})

-target_link_libraries(ImageLOL PRIVATE stb_image png_static zlibstatic libimagelol)

+target_link_libraries(ImageLOL PRIVATE stb_image PNG::PNG libimagelol)