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path: root/pkgs/development/libraries/libui/default.nix
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{ stdenv, fetchgit, cmake, pkgconfig, gtk3, darwin }:

let
  shortName = "libui";
  version   = "3.1a";
  backend   = if stdenv.isDarwin then "darwin" else "unix";
in
  stdenv.mkDerivation rec {
    name = "${shortName}-${version}";
    src  = fetchgit {
      url    = "https://github.com/andlabs/libui.git";
      rev    = "6ebdc96b93273c3cedf81159e7843025caa83058";
      sha256 = "1lpbfa298c61aarlzgp7vghrmxg1274pzxh1j9isv8x758gk6mfn";
    };

  nativeBuildInputs = [ pkgconfig ];
    buildInputs = [ cmake ] ++
      (if backend == "darwin" then [darwin.apple_sdk.frameworks.Cocoa]
       else if backend == "unix" then [gtk3]
       else null);

    preConfigure = stdenv.lib.optionalString stdenv.isDarwin ''
      sed -i 's/set(CMAKE_OSX_DEPLOYMENT_TARGET "10.8")//' ./CMakeLists.txt
    '';
    cmakeFlags = stdenv.lib.optionals stdenv.isDarwin [
      "-DCMAKE_OSX_SYSROOT="
      "-DCMAKE_OSX_DEPLOYMENT_TARGET="
    ];

    installPhase = ''
      mkdir -p $out/{include,lib}
      mkdir -p $out/lib/pkgconfig
    '' + stdenv.lib.optionalString stdenv.isLinux ''
      mv ./out/${shortName}.so.0 $out/lib/
      ln -s $out/lib/${shortName}.so.0 $out/lib/${shortName}.so
    '' + stdenv.lib.optionalString stdenv.isDarwin ''
      mv ./out/${shortName}.A.dylib $out/lib/
      ln -s $out/lib/${shortName}.A.dylib $out/lib/${shortName}.dylib
    '' + ''
      cp $src/ui.h $out/include
      cp $src/ui_${backend}.h $out/include

      cp ${./libui.pc} $out/lib/pkgconfig/${shortName}.pc
      substituteInPlace $out/lib/pkgconfig/${shortName}.pc \
        --subst-var-by out $out \
        --subst-var-by version "${version}"
    '';
    postInstall = stdenv.lib.optionalString stdenv.isDarwin ''
      install_name_tool -id $out/lib/${shortName}.A.dylib $out/lib/${shortName}.A.dylib
    '';

    meta = with stdenv.lib; {
      homepage    = https://github.com/andlabs/libui;
      description = "Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports.";
      license     = licenses.mit;
      platforms   = platforms.unix;
    };
  }