Homebrew recipe for secp256k; originated from https://gist.github.com/shazow/c71c652409015479a7e6, but added some more build options; run to install: brew install --with-module-recovery --with-module-ecdh --without-benchmark https://gist.github.com/dahlia/439e1a7e5a770556a12b25aea797eda7/raw/secp256k1.rb

secp256k1.rb

class Secp256k1 < Formula
  desc "Optimized C library for EC operations on curve secp256k1"
  homepage "https://github.com/bitcoin/secp256k1"
  url "https://github.com/bitcoin/secp256k1.git"

  option "with-module-recovery", "enable ECDSA pubkey recovery module"
  option "with-module-ecdh",
         "enable ECDH shared secret computation (experimental)"
  option "without-benchmark", "do not compile benchmark"

  depends_on "autoconf" => :build
  depends_on "automake" => :build
  depends_on "libtool" => :build

  def install
    args = %W[
      --prefix=#{prefix}
      --disable-dependency-tracking
      --disable-silent-rules
      --enable-shared
      --enable-static
    ]

    args << "--enable-module-recovery" if build.with? "module-recovery"
    args << "--enable-experimental" << "--enable-module-ecdh" if build.with? "module-ecdh"
    args << "--enable-benchmark=no" if build.without? "benchmark"

    system "./autogen.sh"
    system "./configure", *args
    system "make", "install"
  end
end