);
# global deflate context and buffer
-my $zbuf = \(my $buf = '');
-my $zout;
+my ($zout, $zbuf);
{
my $err;
+ $zbuf = \(my $initial = ''); # replaced by $next in zflush/write
($zout, $err) = Compress::Raw::Zlib::Deflate->new(
# nnrpd (INN) and Compress::Raw::Zlib favor MemLevel=9,
# the zlib C library and git use MemLevel=8 as the default