Merge pull request #221325 from Leixb/libsvm3.31

{lib, stdenv, fetchurl}:

{ lib

, stdenv

, fetchurl

, fixDarwinDylibNames

, llvmPackages

, withOpenMP ? true

}:

stdenv.mkDerivation rec {

  pname = "libsvm";

  version = "3.25";

  version = "3.31";

  src = fetchurl {

    url = "https://www.csie.ntu.edu.tw/~cjlin/libsvm/libsvm-${version}.tar.gz";

    sha256 = "sha256-UjUOiqdAsXbh13Pp3AjxNAIYw34BvsN6uQ2wEn5LteU=";

    sha256 = "sha256-AKtWH0jfX8kqhCCa2P5Rmery5Rmzwnm6z8k1l4p1zx8=";

  };

  buildPhase = ''

    make

    make lib

  '';

  patches = lib.optionals withOpenMP [ ./openmp.patch ];

  buildInputs = lib.optionals (stdenv.cc.isClang && withOpenMP) [ llvmPackages.openmp ];

  buildFlags = [ "lib" "all" ];

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

  nativeBuildInputs = lib.optionals stdenv.isDarwin [ fixDarwinDylibNames ];

  installPhase = let

  installPhase =

    let

      libSuff = stdenv.hostPlatform.extensions.sharedLibrary;

  in ''

    install -D libsvm.so.2 $out/lib/libsvm.2${libSuff}

    ln -s $out/lib/libsvm.2${libSuff} $out/lib/libsvm${libSuff}

    install -Dt $out/bin/ svm-scale svm-train svm-predict

    install -Dm644 -t $out/include svm.h

    mkdir $out/include/libsvm

    ln -s $out/include/svm.h $out/include/libsvm/svm.h

  '';

      soVersion = "3";

    in

    ''

      runHook preInstall

      install -D libsvm.so.${soVersion} $out/lib/libsvm.${soVersion}${libSuff}

      ln -s $out/lib/libsvm.${soVersion}${libSuff} $out/lib/libsvm${libSuff}

      install -Dt $bin/bin/ svm-scale svm-train svm-predict

      install -Dm644 -t $dev/include svm.h

      mkdir $dev/include/libsvm

      ln -s $dev/include/svm.h $dev/include/libsvm/svm.h

  postFixup = lib.optionalString stdenv.isDarwin ''

    install_name_tool -id libsvm.2.dylib $out/lib/libsvm.2.dylib;

      runHook postInstall

    '';

  meta = with lib; {

--- /Makefile	1970-01-01 01:00:01.000000000 +0100

+++ /Makefile	1970-01-01 01:00:01.000000000 +0100

@@ -9,8 +9,8 @@

 endif

 # Uncomment the following lines to enable parallelization with OpenMP

-# CFLAGS += -fopenmp

-# SHARED_LIB_FLAG += -fopenmp

+CFLAGS += -fopenmp

+SHARED_LIB_FLAG += -fopenmp

 all: svm-train svm-predict svm-scale