if( $flags =~ /f/ ) {
my $prefix = $flags =~ /n/ ? '' : 'pTHX_';
my $args = scalar @args;
- $ret .= "\n#ifdef HASATTRIBUTE\n";
+ $ret .= "\n#ifdef CHECK_FORMAT\n";
$ret .= sprintf " __attribute__((format(printf,%s%d,%s%d)))",
$prefix, $args - 1, $prefix, $args;
$ret .= "\n#endif\n";