dnsdist 1.2.0 (new formula)

Closes #21249.

Signed-off-by: ilovezfs <ilovezfs@icloud.com>

Formula/dnsdist.rb

@@ -0,0 +1,34 @@
+class Dnsdist < Formula
+  desc "Highly DNS-, DoS- and abuse-aware loadbalancer"
+  homepage "https://www.dnsdist.org/"
+  url "https://downloads.powerdns.com/releases/dnsdist-1.2.0.tar.bz2"
+  sha256 "9885c9ee8ac7076aede586ea58d4642eb877e7b2d76c902254494e2a5a5faa78"
+
+  depends_on "boost" => :build
+  depends_on "pkg-config" => :build
+  depends_on "lua"
+
+  def install
+    # error: unknown type name 'mach_port_t'
+    ENV["SDKROOT"] = MacOS.sdk_path if MacOS.version == :sierra
+
+    if MacOS.version == :high_sierra
+      sdk = MacOS::CLT.installed? ? "" : MacOS.sdk_path
+      ENV["LIBEDIT_CFLAGS"] = "-I#{sdk}/usr/include -I#{sdk}/usr/include/editline"
+      ENV["LIBEDIT_LIBS"] = "-L/usr/lib -ledit -lcurses"
+    end
+
+    system "./configure", "--disable-dependency-tracking",
+                          "--disable-silent-rules",
+                          "--prefix=#{prefix}",
+                          "--without-net-snmp",
+                          "--sysconfdir=#{etc}/dnsdist"
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"dnsdist.conf").write "setLocal('127.0.0.1')"
+    output = shell_output("#{bin}/dnsdist -C dnsdist.conf --check-config 2>&1")
+    assert_equal "Configuration 'dnsdist.conf' OK!", output.chomp
+  end
+end