Merge pull request #1640 from uberhacker/add-libusb-package

Add libusb package

packages/libusb.rb

+require 'package'
+
+class Libusb < Package
+  description 'A cross-platform library that gives apps easy access to USB devices'
+  homepage 'https://sourceforge.net/projects/libusb/'
+  version '1.0.21'
+  source_url 'http://downloads.sourceforge.net/project/libusb/libusb-1.0/libusb-1.0.21/libusb-1.0.21.tar.bz2'
+  source_sha256 '7dce9cce9a81194b7065ee912bcd55eeffebab694ea403ffb91b67db66b1824b'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'eudev'
+
+  def self.build
+    system './configure',
+      "--prefix=#{CREW_PREFIX}",
+      "--libdir=#{CREW_LIB_PREFIX}"
+    system 'make'
+  end
+
+  def self.install
+    system 'make', "DESTDIR=#{CREW_DEST_DIR}", 'install'
+  end
+
+  def self.check
+    system 'make', 'check'
+  end
+end