double_conversion_sources = ['src/' + x for x in SConscript('src/SConscript')] double_conversion_test_sources = ['test/cctest/' + x for x in SConscript('test/cctest/SConscript')] test = double_conversion_sources + double_conversion_test_sources print(test) env = Environment(CPPPATH='#/src') debug = ARGUMENTS.get('debug', 0) if int(debug): env.Append(CCFLAGS = '-g') print double_conversion_sources print double_conversion_test_sources env.Program('run_tests', double_conversion_sources + double_conversion_test_sources)