env.NanopbProto("person")
# Binaries of the pb_decode.c and pb_encode.c
-env.Object("pb_decode.o", "#../pb_decode.c")
-env.Object("pb_encode.o", "#../pb_encode.c")
+# These are built using more strict warning flags.
+strict = env.Clone()
+strict.Append(CFLAGS = strict['CORECFLAGS'])
+strict.Object("pb_decode.o", "$NANOPB/pb_decode.c")
+strict.Object("pb_encode.o", "$NANOPB/pb_encode.c")