homebrew-core/Formula/libff.rb

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