51 lines
1.3 KiB
Ruby
51 lines
1.3 KiB
Ruby
class Eigen < Formula
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desc "C++ template library for linear algebra"
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homepage "https://eigen.tuxfamily.org/"
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url "https://gitlab.com/libeigen/eigen/-/archive/3.4/eigen-3.4.0.tar.gz"
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sha256 "575d079f9fb56806f605b90fd85fbaeb4a3fb31b573fbbe1ab2fed3b5f88d8fe"
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license "MPL-2.0"
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head "https://gitlab.com/libeigen/eigen.git"
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livecheck do
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url :stable
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regex(/^v?(\d+(?:\.\d+)+)$/i)
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end
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bottle do
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sha256 cellar: :any_skip_relocation, all: "87b2664bdc6ec98850643d1149ab53c57b9f6c228cabe23f724b0ff331492fca"
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end
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depends_on "cmake" => :build
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conflicts_with "freeling", because: "freeling ships its own copy of eigen"
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def install
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mkdir "eigen-build" do
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args = std_cmake_args
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args << "-Dpkg_config_libdir=#{lib}" << ".."
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system "cmake", *args
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system "make", "install"
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end
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(share/"cmake/Modules").install "cmake/FindEigen3.cmake"
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end
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test do
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(testpath/"test.cpp").write <<~EOS
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#include <iostream>
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#include <Eigen/Dense>
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using Eigen::MatrixXd;
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int main()
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{
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MatrixXd m(2,2);
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m(0,0) = 3;
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m(1,0) = 2.5;
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m(0,1) = -1;
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m(1,1) = m(1,0) + m(0,1);
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std::cout << m << std::endl;
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}
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EOS
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system ENV.cxx, "test.cpp", "-I#{include}/eigen3", "-o", "test"
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assert_equal %w[3 -1 2.5 1.5], shell_output("./test").split
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end
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end
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