diff --git a/waflib/Node.py b/waflib/Node.py
index c86c4c13..7c555b68 100644
--- a/waflib/Node.py
+++ b/waflib/Node.py
@@ -581,34 +581,6 @@ class Node(object):
 
 		return ret
 
-	def find_nodes(self, find_dirs=True, find_files=True, match_fun=lambda x: True):
-		# FIXME not part of the stable API: find_node vs find_nodes? consistency with argument names on other functions?
-		x = """
-		Recursively finds nodes::
-
-			def configure(cnf):
-				cnf.find_nodes()
-
-		:param find_dirs: whether to return directories
-		:param find_files: whether to return files
-		:param match_fun: matching function, taking a node as parameter
-		:rtype generator
-		:return: a generator that iterates over all the requested files
-		"""
-		files = self.listdir()
-		for f in files:
-			node = self.make_node([f])
-			if os.path.isdir(node.abspath()):
-				if find_dirs and match_fun(node):
-					yield node
-				gen = node.find_nodes(find_dirs, find_files, match_fun)
-				for g in gen:
-					yield g
-			else:
-				if find_files and match_fun(node):
-					yield node
-
-
 	# --------------------------------------------------------------------------------
 	# the following methods require the source/build folders (bld.srcnode/bld.bldnode)
 	# using a subclass is a possibility, but is that really necessary?
diff --git a/waflib/TaskGen.py b/waflib/TaskGen.py
index b5def00d..23a0a94f 100644
--- a/waflib/TaskGen.py
+++ b/waflib/TaskGen.py
@@ -586,8 +586,7 @@ def process_rule(self):
 	if getattr(self, 'cwd', None):
 		tsk.cwd = self.cwd
 
-	# TODO remove on_results in waf 1.7
-	if getattr(self, 'update_outputs', None) or getattr(self, 'on_results', None):
+	if getattr(self, 'update_outputs', None):
 		Task.update_outputs(cls)
 
 	if getattr(self, 'always', None):
diff --git a/waflib/Tools/c_config.py b/waflib/Tools/c_config.py
index ee1c5c2c..89dc83d0 100644
--- a/waflib/Tools/c_config.py
+++ b/waflib/Tools/c_config.py
@@ -6,9 +6,9 @@
 C/C++/D configuration helpers
 """
 
-import os, imp, sys, re, shlex, shutil
-from waflib import Build, Utils, Configure, Task, Options, Logs, TaskGen, Errors, ConfigSet, Runner
-from waflib.TaskGen import before_method, after_method, feature
+import os, re, shlex, sys
+from waflib import Build, Utils, Task, Options, Logs, Errors, ConfigSet, Runner
+from waflib.TaskGen import after_method, feature
 from waflib.Configure import conf
 
 WAF_CONFIG_H   = 'config.h'
@@ -40,12 +40,6 @@ int main() {
 '''
 """Code template for checking for types"""
 
-SNIP_CLASS = '''
-int main() {
-	if (
-}
-'''
-
 SNIP_EMPTY_PROGRAM = '''
 int main() {
 	return 0;
@@ -354,7 +348,7 @@ def check_cfg(self, *k, **kw):
 	ret = None
 	try:
 		ret = self.exec_cfg(kw)
-	except self.errors.WafError as e:
+	except self.errors.WafError:
 		if 'errmsg' in kw:
 			self.end_msg(kw['errmsg'], 'YELLOW')
 		if Logs.verbose > 1:
@@ -567,7 +561,6 @@ def post_check(self, *k, **kw):
 	if 'define_name' in kw:
 		# TODO simplify?
 		if 'header_name' in kw or 'function_name' in kw or 'type_name' in kw or 'fragment' in kw:
-			nm = kw['define_name']
 			if kw['execute'] and kw.get('define_ret', None) and isinstance(is_success, str):
 				self.define(kw['define_name'], is_success, quote=kw.get('quote', 1))
 			else:
@@ -612,7 +605,7 @@ def check(self, *k, **kw):
 	ret = None
 	try:
 		ret = self.run_c_code(*k, **kw)
-	except self.errors.ConfigurationError as e:
+	except self.errors.ConfigurationError:
 		self.end_msg(kw['errmsg'], 'YELLOW')
 		if Logs.verbose > 1:
 			raise