2022-08-17 16:28:12 +00:00
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class Libff < Formula
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desc "C++ library for Finite Fields and Elliptic Curves"
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homepage "https://github.com/scipr-lab/libff"
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# pull from git tag to get submodules
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url "https://github.com/scipr-lab/libff.git",
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tag: "v0.2.1",
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revision: "5835b8c59d4029249645cf551f417608c48f2770"
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license "MIT"
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2022-08-31 16:21:59 +00:00
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bottle do
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sha256 cellar: :any, arm64_monterey: "3bc7fe57f5d06f468d143100f64767344d54cf8f925b41ad72431828807b8ebd"
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sha256 cellar: :any, arm64_big_sur: "de8ad0e6ec68dd26c530f29e4e3d20247d2d4488e3355b53f036168eba942544"
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sha256 cellar: :any, monterey: "01a39f20109229d722f510d67183de70611fa206e8c2407c878cf63ad03b9bfa"
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sha256 cellar: :any, big_sur: "31327452c277cb5ab2b8c466ec66de12bf8839657e7a3e45faafe88f38c8ddc8"
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sha256 cellar: :any, catalina: "cfa9fac08910ff673c989d63a79076a33e063d15702a4b733098f151e3cf86f0"
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sha256 cellar: :any_skip_relocation, x86_64_linux: "587d6b29ca7e2570567f0f1bc6660143d910b69262011c2d2c1021ee1fba8194"
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end
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2022-08-17 16:28:12 +00:00
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depends_on "cmake" => :build
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depends_on "openssl@1.1" => :build
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depends_on "gmp"
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def install
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# bn128 is somewhat faster, but requires an x86_64 CPU
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curve = Hardware::CPU.intel? ? "BN128" : "ALT_BN128"
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# build libff dynamically. The project only builds statically by default
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inreplace "libff/CMakeLists.txt", "STATIC", "SHARED"
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system "cmake", "-S", ".", "-B", "build",
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"-DWITH_PROCPS=OFF",
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"-DCURVE=#{curve}",
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"-DOPENSSL_ROOT_DIR=#{Formula["openssl@1.1"].opt_prefix}",
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"-DCMAKE_POSITION_INDEPENDENT_CODE=ON",
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*std_cmake_args
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system "cmake", "--build", "build"
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system "cmake", "--install", "build"
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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 <libff/algebra/curves/edwards/edwards_pp.hpp>
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using namespace libff;
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int main(int argc, char *argv[]) {
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edwards_pp::init_public_params();
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return 0;
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}
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EOS
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system ENV.cxx, "-std=c++11", "test.cpp", "-I#{include}", "-L#{lib}", "-lff", "-o", "test"
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system "./test"
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end
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end
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