push(@INC, "${dir}perlasm", "perlasm");
require "x86asm.pl";
-$output = pop;
-open OUT,">$output";
-*STDOUT=*OUT;
+$output = pop and open STDOUT,">$output";
&asm_init($ARGV[0]);
&asm_finish();
-close STDOUT;
+close STDOUT or die "error closing STDOUT: $!";