Waf 1.7.x
---------

* fix the remaining bugs
* provide more extensions


Can be useful:

def bld_command(*k):
	fun = k[0]
	name = fun.__name__
	from waflib.Build import BuildContext
	class tmp(BuildContext):
		cmd = name
		fun = name
	return fun

@bld_command
def foo(ctx):
	print ctx.env