def prebuild_arch(self, arch):
        prebuild = "prebuild_{}".format(arch.arch.replace('-', '_'))
        if hasattr(self, prebuild):
            getattr(self, prebuild)()
        else:
            info('{} has no {}, skipping'.format(self.name, prebuild))
Run any pre-build tasks for the Recipe. By default, this checks if
dataset/ETHPy150Open kivy/python-for-android/pythonforandroid/recipe.py/Recipe.prebuild_arch