Add jack package (#3877)

Add pre-built binaries

packages/jack.rb

+require 'package'
+
+class Jack < Package
+  description 'JACK (JACK Audio Connection Kit) refers to an API that provides a basic infrastructure for audio applications to communicate with each other and with audio hardware.'
+  homepage 'https://jackaudio.org/'
+  version '1.9.14'
+  source_url 'https://github.com/jackaudio/jack2/releases/download/v1.9.14/v1.9.14.tar.gz'
+  source_sha256 'a20a32366780c0061fd58fbb5f09e514ea9b7ce6e53b080a44b11a558a83217c'
+
+  binary_url ({
+    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/jack-1.9.14-chromeos-armv7l.tar.xz',
+     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/jack-1.9.14-chromeos-armv7l.tar.xz',
+       i686: 'https://dl.bintray.com/chromebrew/chromebrew/jack-1.9.14-chromeos-i686.tar.xz',
+     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/jack-1.9.14-chromeos-x86_64.tar.xz',
+  })
+  binary_sha256 ({
+    aarch64: '347c09ba7eb56e45ab222de5aebbc75ea6c9bbf85c59bf1da3cb33a87762a0c7',
+     armv7l: '347c09ba7eb56e45ab222de5aebbc75ea6c9bbf85c59bf1da3cb33a87762a0c7',
+       i686: '8b855311f24cb179be23371066b8f8917589af2ac364ce8a70af145f5e8b86a1',
+     x86_64: '85bb228bd5f60b72b377ca99bd22464292d3cf05f7e5e92d433482117abdeafd',
+  })
+
+  depends_on 'dbus'
+  depends_on 'alsa_lib'
+  depends_on 'libdb'
+  depends_on 'libsndfile'
+
+  def self.patch
+    # Set the correct python executable path.
+    system "sed -i 's,/usr/bin,#{CREW_PREFIX}/bin,' waf"
+  end
+
+  def self.build
+    system './waf',
+           'configure',
+           '--dbus',
+           '--classic',
+           '--db=yes',
+           '--alsa=yes',
+           '--sndfile=yes',
+           '--autostart=none',
+           "--prefix=#{CREW_PREFIX}",
+           "--libdir=#{CREW_LIB_PREFIX}"
+    system './waf build'
+  end
+
+  def self.install
+    system "./waf install --destdir=#{CREW_DEST_DIR}"
+  end
+end