class Autotrace < Formula
  desc "Convert bitmap to vector graphics"
  homepage "http://autotrace.sourceforge.net"
  url "https://downloads.sourceforge.net/project/autotrace/AutoTrace/0.31.1/autotrace-0.31.1.tar.gz"
  sha256 "5a1a923c3335dfd7cbcccb2bbd4cc3d68cafe7713686a2f46a1591ed8a92aff6"
  revision 1

  depends_on "pkg-config" => :build
  depends_on "imagemagick" => :recommended

  # Issue 16569: Use MacPorts patch to port input-png.c to libpng 1.5.
  # Fix underquoted m4
  patch :p0 do
    url "https://trac.macports.org/export/100575/trunk/dports/graphics/autotrace/files/patch-libpng-1.5.diff"
    sha256 "9c57a03d907db94956324e9199c7b5431701c51919af6dfcff4793421a1f31fe"
  end

  patch :p0 do
    url "https://trac.macports.org/export/77101/trunk/dports/graphics/autotrace/files/patch-autotrace.m4.diff"
    sha256 "12d794c99938994f5798779ab268a88aff56af8ab4d509e14383a245ae713720"
  end

  def install
    args = ["--disable-debug",
            "--disable-dependency-tracking",
            "--prefix=#{prefix}",
            "--mandir=#{man}"]

    args << "--without-magick" if build.without? "imagemagick"

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