improve automake

packages/a/automake/xmake.lua

@@ -13,6 +13,8 @@ package("automake")
         add_versions("1.9.5", "68712753fcb756f3707b7da554917afb348450eb8530cae3b623a067078596fd")
     end
 
+    add_deps("autoconf")
+
     on_install("@macosx", "@linux", function (package)
         import("package.tools.autoconf").install(package)
         io.writefile(path.join(package:installdir("share", "aclocal"), "dirlist"), [[