--- DarthVader/Make.def	2012/05/15 14:30:50	1.3
+++ DarthVader/Make.def	2013/11/05 14:02:02	1.4
@@ -32,7 +32,7 @@
 # C
 export CC=gcc
 #CFLAGS=-Wall -O -fPIC -pthread -g ${PAM_BIT} 
-export CFLAGS=-Wall -g -O3 -funroll-loops -fPIC -pthread ${PAM_BIT} 
+export CFLAGS=-Wall -Wshadow -g -O3 -funroll-loops -fPIC -pthread ${PAM_BIT} 
 # F77
 ifeq ($(GCC4),1)
 export F77=gfortran
