nixpkgs/pkgs/by-name/li/liblinear/package.nix

{
  lib,
  stdenv,
  fetchFromGitHub,
}:

let
  soVersion = "5";
in
stdenv.mkDerivation rec {
  pname = "liblinear";
  version = "2.47";

  src = fetchFromGitHub {
    owner = "cjlin1";
    repo = "liblinear";
    rev = "v${builtins.replaceStrings [ "." ] [ "" ] version}";
    sha256 = "sha256-so7uCc/52NdN0V2Ska8EUdw/wSegaudX5AF+c0xe5jk=";
  };

  makeFlags = [
    "AR=${stdenv.cc.targetPrefix}ar"
    "RANLIB=${stdenv.cc.targetPrefix}ranlib"
  ];

  outputs = [
    "bin"
    "dev"
    "out"
  ];

  buildFlags = [
    "lib"
    "predict"
    "train"
  ];

  installPhase = ''
    ${
      if stdenv.hostPlatform.isDarwin then
        ''
          install -D liblinear.so.${soVersion} $out/lib/liblinear.${soVersion}.dylib
          ln -s $out/lib/liblinear.${soVersion}.dylib $out/lib/liblinear.dylib
        ''
      else
        ''
          install -Dt $out/lib liblinear.so.${soVersion}
          ln -s $out/lib/liblinear.so.${soVersion} $out/lib/liblinear.so
        ''
    }
    install -D train $bin/bin/liblinear-train
    install -D predict $bin/bin/liblinear-predict
    install -Dm444 -t $dev/include linear.h
  '';

  meta = with lib; {
    description = "Library for large linear classification";
    homepage = "https://www.csie.ntu.edu.tw/~cjlin/liblinear/";
    license = licenses.bsd3;
    maintainers = [ ];
    platforms = platforms.unix;
  };
}