1 files changed, 40 insertions, 0 deletions
diff --git a/ruby_1_9_3/lib/rake/loaders/makefile.rb b/ruby_1_9_3/lib/rake/loaders/makefile.rb
new file mode 100644
index 0000000000..4ece4323af
--- /dev/null
+++ b/ruby_1_9_3/lib/rake/loaders/makefile.rb
@@ -0,0 +1,40 @@
+module Rake
+
+  # Makefile loader to be used with the import file loader.
+  class MakefileLoader
+    include Rake::DSL
+
+    SPACE_MARK = "\0"
+
+    # Load the makefile dependencies in +fn+.
+    def load(fn)
+      lines = File.read fn
+      lines.gsub!(/\\ /, SPACE_MARK)
+      lines.gsub!(/#[^\n]*\n/m, "")
+      lines.gsub!(/\\\n/, ' ')
+      lines.each_line do |line|
+        process_line(line)
+      end
+    end
+
+    private
+
+    # Process one logical line of makefile data.
+    def process_line(line)
+      file_tasks, args = line.split(':', 2)
+      return if args.nil?
+      dependents = args.split.map { |d| respace(d) }
+      file_tasks.scan(/\S+/) do |file_task|
+        file_task = respace(file_task)
+        file file_task => dependents
+      end
+    end
+
+    def respace(str)
+      str.tr SPACE_MARK, ' '
+    end
+  end
+
+  # Install the handler
+  Rake.application.add_loader('mf', MakefileLoader.new)
+end