--- a/scons/templates/sid_options.py
+++ b/scons/templates/sid_options.py
@@ -56,7 +56,7 @@ escript_opts_version = 202
 # Flags to use with the C++ compiler. Do not set unless you know
 # what you are doing - use cxx_extra to specify additional flags!
 # DEFAULT: compiler-dependent
-#cc_flags = ''
+cc_flags = '-std=c++03'
 
 # Additional compiler (optimization) flags for non-debug builds
 # DEFAULT: compiler-dependent
