text: class Udns < Formula
    desc "DNS resolver library"
    homepage "https://www.corpit.ru/mjt/udns.html"
    url "https://www.corpit.ru/mjt/udns/udns-0.4.tar.gz"
    sha256 "115108dc791a2f9e99e150012bcb459d9095da2dd7d80699b584ac0ac3768710"
  
    bottle do
      cellar :any
      sha256 "18ac00a1a30fea027e398558edf149e464712c94fa68242740cc8e086e1ec036" => :catalina
      sha256 "ce9ffcdbc08861f382e251d66293c4de690e5bffe1ca3015909332b71ea306c8" => :mojave
      sha256 "806e631f04904c4e550e3397a6519ee1803cb3cbef916967f42aed331e875afa" => :high_sierra
      sha256 "8fbcc7a26f6be81abfe4766e9efc012c720938e8ea9dc9f20497cb82b101e659" => :sierra
      sha256 "59939957b47912ebb286426391a4e2c904ecc416e9de18dc8c0a74052ac82ffe" => :el_capitan
      sha256 "342aff7270a4251655eb7cfc538b39db1805cfe965ada5cad1a2819b727d9107" => :yosemite
      sha256 "d6be7acb570845e63c6ac69b8169c4ce1d5a31f5f76f60bad10168a5b13126ff" => :mavericks
      sha256 "eb334a17a24b5246087dfd86ce1740d66def683e9e3516c96b100fd37d7b1933" => :x86_64_linux # glibc 2.19
    end
  
    # Build target for dylib. See:
    # https://www.corpit.ru/pipermail/udns/2011q3/000154.html
    if OS.mac?
      patch do
        url "https://raw.githubusercontent.com/Homebrew/formula-patches/85fa66a9/udns/0.4.patch"
        sha256 "4c3de5d04f93e7d7a9777b3baf3905707199fce9c08840712ccb2fb5fd6d90f9"
      end
    end
  
    def install
      system "./configure"
      system "make"
      system "make", OS.mac? ? "dylib" : "sharedlib"
  
      bin.install "dnsget", "rblcheck"
      doc.install "NOTES", "TODO", "ex-rdns.c"
      include.install "udns.h"
      if OS.mac?
        lib.install "libudns.a", "libudns.0.dylib", "libudns.dylib"
      else
        lib.install "libudns.a", "libudns.so.0"
        lib.install_symlink "libudns.so.0" => "libudns.so"
      end
      man1.install "dnsget.1", "rblcheck.1"
      man3.install "udns.3"
    end
  end
  