Import("env") env["SQLITE_FLAGS"] = { "CPPPATH": [Dir(".")], "LIBPATH": [Dir(".")], "LIBS": ["SQLite"], } myenv = env.Clone() myenv.Replace(CCFLAGS = [flag for flag in env["CCFLAGS"] if flag not in ["-W", "-Wall"]]) myenv.StaticLibrary("SQLite", ["sqlite3.c"], CPPPATH = ["."])