diff --git a/Makefile b/Makefile
index 8bbd2b7..739887b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,10 @@
 CXX=g++
-CPPFLAGS=-Wall -g -std=c++0x
 # CPPFLAGS=-Wall -g
+# CPPFLAGS=-Wall -g -std=c++0x
+# CPPFLAGS=-Wall -g -std=c++0x -pthread
 
 all:
 	@echo "build things individually (make loops, etc.)"
 
 clean:
-	@rm -vf auto constexpr ilists2 ilists init init_new loops
+	@rm -vf auto constexpr ilists2 ilists init init_new lambda loops thread thread2 tuple