* automake.in (%am_vars, @var_list, %def_type): Globals.
(&initialize_per_input): Initialize them.
(&read_main_am_file): Don't local them.
(&get_object_extension): $objext is private.
(&handle_single_transform_list): $lang is.
(&handle_ltlibraries): $libname_rx is.
(&scan_autoconf_config_files): How about actually paying attention
to your arguments, instead of working on $_? (this is no Perl
variable, it's a Perl variable followed by a question mark).
(&file_contents): $contents and $separator are private.
(&am_install_var): Declare @condvals, not $condvals.
(%make_dirs): My.