Check out perlapio ... you shouldn't be using stdio for printing but perl's IO abstraction interface: 

use warnings;

use Inline C => <<'EOC';

void foo() {
  PerlIO_printf(PerlIO_stdout(),"HELLO");
}

EOC

for(1..3) {
   foo();
   print "\n";
}

[download]

-derby

In reply to Re: [OT]: Flushing XS buffers portably by derby
in thread [OT]: Flushing XS buffers portably by syphilis

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