Add V4l_utils package (#3020)

packages/v4l_utils.rb

+require 'package'
+
+class V4l_utils < Package
+  description 'The v4l-utils are a series of packages for handling media devices.'
+  homepage 'https://www.linuxtv.org/wiki/index.php/V4l-utils'
+  version '1.16.3'
+  source_url 'https://linuxtv.org/downloads/v4l-utils/v4l-utils-1.16.3.tar.bz2'
+  source_sha256 '7c5c0d49c130cf65d384f28e9f3a53c5f7d17bf18740c48c40810e0fbbed5b54'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'sdl2_image'
+  depends_on 'libglu'
+  depends_on 'alsa_lib'
+  depends_on 'ld_default'
+
+  def self.patch
+    system "find . -name '*.pl' -exec sed -i 's,/usr/bin/perl,#{CREW_PREFIX}/bin/perl,g' {} +"
+  end
+
+  def self.build
+    puts "Forcing GOLD linker to be used.".orange
+    original_default = `ld_default g`.chomp
+    system "./configure",
+           "--disable-bpf",
+           "--disable-static",
+           "--prefix=#{CREW_PREFIX}",
+           "--libdir=#{CREW_LIB_PREFIX}"
+    system 'make'
+    system "ld_default #{original_default}"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+end