sub LooksLikeAMakefile($) {
    my $Makefile = shift;
    my $Result   = 1;

    my $filetype = `file -b $Makefile`;
    chomp($filetype);

    print "$filetype\n";

    if (index($filetype, 'HTML', 0) != -1) {
        print "nope, that's HTML, not a Makefile as far as I'm concerned....\n";
        $Result = 0;
    }

    return $Result;
}