diff --git a/affxparser/src/Makevars b/affxparser/src/Makevars
index 0a17fa5..6c95175 100644
--- a/affxparser/src/Makevars
+++ b/affxparser/src/Makevars
@@ -1,5 +1,5 @@
 ## -Wno-unused-private-field gives notes/errors with some compiler
-MYCXXFLAGS = -Wno-sign-compare -O0
+MYCXXFLAGS = -Wno-sign-compare
 
 %.o: %.cpp
 	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS) $(MYCXXFLAGS) -c $< -o $@
@@ -131,7 +131,7 @@ C_OBJECTS=$(PKG_C_SOURCES:.c=.o)
 
 OBJECTS=$(CPP_OBJECTS) $(C_OBJECTS)
 
-all: myclean $(SHLIB)
+all: $(SHLIB)
 
 myclean:
 	rm -f $(OBJECTS)