Update libxcb.rb (#2024)

* Update libxcb.rb

#1981

* Update libxcb.rb

packages/libxcb.rb

@@ -3,21 +3,15 @@ require 'package'
 class Libxcb < Package
   description 'library for the X window system'
   homepage 'https://x.org'
-  version '1.12'
+  version '1.12-0'
   source_url 'https://www.x.org/archive/individual/xcb/libxcb-1.12.tar.gz'
   source_sha256 '092f147149d8a6410647a848378aaae749304d5b73e028ccb8306aa8a9e26f06'
 
   binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/libxcb-1.12-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/libxcb-1.12-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/libxcb-1.12-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/libxcb-1.12-chromeos-x86_64.tar.xz',
+
   })
   binary_sha256 ({
-    aarch64: '326bfe6776e7dd680d3f86e67276177d1fd0b3c5c8fab806e9eb5022d0e03544',
-     armv7l: '326bfe6776e7dd680d3f86e67276177d1fd0b3c5c8fab806e9eb5022d0e03544',
-       i686: 'fedc718aa92c142d05ede4b5b1059e51e589ffc547cd5dd02bcccc43cc3ecce2',
-     x86_64: 'e68026a9ce6d39647790fa2f8f93c129070977c6d39c939d47ee5ec976a3da8a',
+
   })
 
   depends_on 'python27' => :build
@@ -26,7 +20,7 @@ class Libxcb < Package
   depends_on 'pthread_stubs'
 
   def self.build
-    system "python=/usr/local/bin/python2.7 ./configure"
+    system "./configure --prefix=#{CREW_PREFIX} --libdir=#{CREW_LIB_PREFIX}"
     system "make"
   end