def METHOD_NAME(self):
    self.requires("libiconv/1.17")
    if self.options.with_png:
        self.requires("libpng/1.6.39")
        self.requires("zlib/1.2.13")
    if self.options.with_xmp == "bundled":
        self.requires("expat/2.5.0")
    if self.options.with_curl:
        self.requires("libcurl/7.87.0")