It makes no difference whether you call fputs() from XS code or via a wrapper of an external library function

On win32, at least, there's certainly a difference - in that things get even worse if you call fputs() directly from XS code. The following compiles but there's a runtime error that results in a pop-up telling me that "perl.exe has stopped working". Probably a segfault: 
use warnings;

use Inline C => <<'EOC';

void foo() {
     fputs("hello world", stdout);
}

EOC

foo();

[download]
I remember having read remarks and caveats wrt to stdio, and advice to use the PerlIO layer instead

Yes (eg perldoc perlclib) ... but the C library function still expects a FILE* (not PerlIO*) as an argument, and it's still going to do an fputs(), so I'm pessimistic about the chances of that being helpful.

Cheers,
Rob

In reply to Re^4: Really, really suffering from buffering by syphilis
in thread Really, really suffering from buffering by syphilis

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