1 files changed, 56 insertions, 0 deletions
diff --git a/lib/rubygems/ext/builder.rb b/lib/rubygems/ext/builder.rb
new file mode 100644
index 0000000000..576951a566
--- /dev/null
+++ b/lib/rubygems/ext/builder.rb
@@ -0,0 +1,56 @@
+#--
+# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
+# All rights reserved.
+# See LICENSE.txt for permissions.
+#++
+
+require 'rubygems/ext'
+
+class Gem::Ext::Builder
+
+  def self.class_name
+    name =~ /Ext::(.*)Builder/
+    $1.downcase
+  end
+
+  def self.make(dest_path, results)
+    unless File.exist? 'Makefile' then
+      raise Gem::InstallError, "Makefile not found:\n\n#{results.join "\n"}" 
+    end
+
+    mf = File.read('Makefile')
+    mf = mf.gsub(/^RUBYARCHDIR\s*=\s*\$[^$]*/, "RUBYARCHDIR = #{dest_path}")
+    mf = mf.gsub(/^RUBYLIBDIR\s*=\s*\$[^$]*/, "RUBYLIBDIR = #{dest_path}")
+
+    File.open('Makefile', 'wb') {|f| f.print mf}
+
+    make_program = ENV['make']
+    unless make_program then
+      make_program = (/mswin/ =~ RUBY_PLATFORM) ? 'nmake' : 'make'
+    end
+
+    ['', ' install'].each do |target|
+      cmd = "#{make_program}#{target}"
+      results << cmd
+      results << `#{cmd} #{redirector}`
+
+      raise Gem::InstallError, "make#{target} failed:\n\n#{results}" unless
+        $?.exitstatus.zero?
+    end
+  end
+
+  def self.redirector
+    '2>&1'
+  end
+
+  def self.run(command, results)
+    results << command
+    results << `#{command} #{redirector}`
+
+    unless $?.exitstatus.zero? then
+      raise Gem::InstallError, "#{class_name} failed:\n\n#{results.join "\n"}"
+    end
+  end
+
+end
+