2 files changed, 0 insertions, 78 deletions
diff --git a/waflib b/waflib
new file mode 160000
+Subproject 2314e236ca6e7d94a26c3c17091da0f25f5867f
diff --git a/waflib/extras/why.py b/waflib/extras/why.py
deleted file mode 100644
index 1bb941f..0000000
--- a/waflib/extras/why.py
+++ /dev/null
@@ -1,78 +0,0 @@
-#! /usr/bin/env python
-# encoding: utf-8
-# Thomas Nagy, 2010 (ita)
-
-"""
-This tool modifies the task signature scheme to store and obtain
-information about the task execution (why it must run, etc)::
-
-	def configure(conf):
-		conf.load('why')
-
-After adding the tool, a full rebuild is necessary:
-waf clean build --zones=task
-"""
-
-from waflib import Task, Utils, Logs, Errors
-
-def signature(self):
-	# compute the result one time, and suppose the scan_signature will give the good result
-	try:
-		return self.cache_sig
-	except AttributeError:
-		pass
-
-	self.m = Utils.md5()
-	self.m.update(self.hcode)
-	id_sig = self.m.digest()
-
-	# explicit deps
-	self.m = Utils.md5()
-	self.sig_explicit_deps()
-	exp_sig = self.m.digest()
-
-	# env vars
-	self.m = Utils.md5()
-	self.sig_vars()
-	var_sig = self.m.digest()
-
-	# implicit deps / scanner results
-	self.m = Utils.md5()
-	if self.scan:
-		try:
-			self.sig_implicit_deps()
-		except Errors.TaskRescan:
-			return self.signature()
-	impl_sig = self.m.digest()
-
-	ret = self.cache_sig = impl_sig + id_sig + exp_sig + var_sig
-	return ret
-
-
-Task.Task.signature = signature
-
-old = Task.Task.runnable_status
-def runnable_status(self):
-	ret = old(self)
-	if ret == Task.RUN_ME:
-		try:
-			old_sigs = self.generator.bld.task_sigs[self.uid()]
-		except (KeyError, AttributeError):
-			Logs.debug("task: task must run as no previous signature exists")
-		else:
-			new_sigs = self.cache_sig
-			def v(x):
-				return Utils.to_hex(x)
-
-			Logs.debug('Task %r', self)
-			msgs = ['* Implicit or scanner dependency', '* Task code', '* Source file, explicit or manual dependency', '* Configuration data variable']
-			tmp = 'task: -> %s: %s %s'
-			for x in range(len(msgs)):
-				l = len(Utils.SIG_NIL)
-				a = new_sigs[x*l : (x+1)*l]
-				b = old_sigs[x*l : (x+1)*l]
-				if (a != b):
-					Logs.debug(tmp, msgs[x].ljust(35), v(a), v(b))
-	return ret
-Task.Task.runnable_status = runnable_status
-