Create libsigcplusplus.rb (#2182)

* Create libsigcplusplus.rb

* Update libsigcplusplus.rb

* Update libsigcplusplus.rb

packages/libsigcplusplus.rb

+require 'package'
+
+class Libsigcplusplus < Package
+  description 'libsigc++ implements a typesafe callback system for standard C++.'
+  homepage 'http://libsigc.sourceforge.net/'
+  version '2.10.0'
+  source_url 'https://ftp.gnome.org/pub/GNOME/sources/libsigc++/2.10/libsigc++-2.10.0.tar.xz'
+  source_sha256 'f843d6346260bfcb4426259e314512b99e296e8ca241d771d21ac64f28298d81'
+
+  binary_url ({
+    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/libsigcplusplus-2.10.0-chromeos-armv7l.tar.xz',
+     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/libsigcplusplus-2.10.0-chromeos-armv7l.tar.xz',
+       i686: 'https://dl.bintray.com/chromebrew/chromebrew/libsigcplusplus-2.10.0-chromeos-i686.tar.xz',
+     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/libsigcplusplus-2.10.0-chromeos-x86_64.tar.xz',
+  })
+  binary_sha256 ({
+    aarch64: '526748e3a15fcd316fefc8c0359880b5c89640ad89a01de8c3f6210251e229f4',
+     armv7l: '526748e3a15fcd316fefc8c0359880b5c89640ad89a01de8c3f6210251e229f4',
+       i686: 'cbdf640dbf2462b3b8f24bb5f7cd2345f1ff3f46c983191e7ee31482213d24cd',
+     x86_64: 'c32ff29b0f4a8394b69502cd3dc030848f84c5c3df048beb88966f7b1b6c6935',
+  })
+
+  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
+end