-env.Command("alltypes.pb.h", "#alltypes/alltypes.pb.h", c)
-env.Command("alltypes.pb.cxx", "#alltypes/alltypes.pb.c", c)
-env.Command("encode_alltypes.cxx", "#alltypes/encode_alltypes.c", c)
-env.Command("decode_alltypes.cxx", "#alltypes/decode_alltypes.c", c)
+env.Command("alltypes.pb.h", "$BUILD/alltypes/alltypes.pb.h", c)
+env.Command("alltypes.pb.cxx", "$BUILD/alltypes/alltypes.pb.c", c)
+env.Command("encode_alltypes.cxx", "$BUILD/alltypes/encode_alltypes.c", c)
+env.Command("decode_alltypes.cxx", "$BUILD/alltypes/decode_alltypes.c", c)