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diff --git a/third_party/waf/waflib/extras/boo.py b/third_party/waf/waflib/extras/boo.py
new file mode 100644
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+++ b/third_party/waf/waflib/extras/boo.py
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+#! /usr/bin/env python
+# encoding: utf-8
+# Yannick LM 2011
+
+"""
+Support for the boo programming language, for example::
+
+	bld(features = "boo",       # necessary feature
+		source   = "src.boo",   # list of boo files
+		gen      = "world.dll", # target
+		type     = "library",   # library/exe ("-target:xyz" flag)
+		name     = "world"      # necessary if the target is referenced by 'use'
+	)
+"""
+
+from waflib import Task
+from waflib.Configure import conf
+from waflib.TaskGen import feature, after_method, before_method, extension
+
+@extension('.boo')
+def boo_hook(self, node):
+	# Nothing here yet ...
+	# TODO filter the non-boo source files in 'apply_booc' and remove this method
+	pass
+
+@feature('boo')
+@before_method('process_source')
+def apply_booc(self):
+	"""Create a booc task """
+	src_nodes = self.to_nodes(self.source)
+	out_node = self.path.find_or_declare(self.gen)
+
+	self.boo_task = self.create_task('booc', src_nodes, [out_node])
+
+	# Set variables used by the 'booc' task
+	self.boo_task.env.OUT = '-o:%s' % out_node.abspath()
+
+	# type is "exe" by default
+	type = getattr(self, "type", "exe")
+	self.boo_task.env.BOO_TARGET_TYPE = "-target:%s" % type
+
+@feature('boo')
+@after_method('apply_boo')
+def use_boo(self):
+	""""
+	boo applications honor the **use** keyword::
+	"""
+	dep_names = self.to_list(getattr(self, 'use', []))
+	for dep_name in dep_names:
+		dep_task_gen = self.bld.get_tgen_by_name(dep_name)
+		if not dep_task_gen:
+			continue
+		dep_task_gen.post()
+		dep_task = getattr(dep_task_gen, 'boo_task', None)
+		if not dep_task:
+			# Try a cs task:
+			dep_task = getattr(dep_task_gen, 'cs_task', None)
+			if not dep_task:
+				# Try a link task:
+				dep_task = getattr(dep_task, 'link_task', None)
+				if not dep_task:
+					# Abort ...
+					continue
+		self.boo_task.set_run_after(dep_task) # order
+		self.boo_task.dep_nodes.extend(dep_task.outputs) # dependency
+		self.boo_task.env.append_value('BOO_FLAGS', '-reference:%s' % dep_task.outputs[0].abspath())
+
+class booc(Task.Task):
+	"""Compiles .boo files """
+	color   = 'YELLOW'
+	run_str = '${BOOC} ${BOO_FLAGS} ${BOO_TARGET_TYPE} ${OUT} ${SRC}'
+
+@conf
+def check_booc(self):
+	self.find_program('booc', 'BOOC')
+	self.env.BOO_FLAGS = ['-nologo']
+
+def configure(self):
+	"""Check that booc is available """
+	self.check_booc()
+