Update Compress-Raw-Zlib to CPAN version 2.047

  [DELTA]

  2.047 28 January 2012

      * Allow flush to be called multiple times without any intermediate
        call to deflate and still return Z_OK.
        In the code below $status was Z_BUF_ERROR before this change.

          $def->flush(...);
          $status = $def->flush(...);

      * Added support for zlibCompileFlags

      * Set minimum Perl version to 5.6

8 files changed, 187 insertions, 23 deletions

diff --git a/Porting/Maintainers.pl b/Porting/Maintainers.pl
index bb382c2e9e..009b6459e9 100755
--- a/Porting/Maintainers.pl
+++ b/Porting/Maintainers.pl
@@ -375,7 +375,7 @@ use File::Glob qw(:case);
 
     'Compress::Raw::Zlib' => {
         'MAINTAINER'   => 'pmqs',
-        'DISTRIBUTION' => 'PMQS/Compress-Raw-Zlib-2.045.tar.gz',
+        'DISTRIBUTION' => 'PMQS/Compress-Raw-Zlib-2.047.tar.gz',
 
         'FILES'    => q[cpan/Compress-Raw-Zlib],
         'EXCLUDED' => [
diff --git a/cpan/Compress-Raw-Zlib/Changes b/cpan/Compress-Raw-Zlib/Changes
index bc0a1a8adc..7070d0fc22 100644
--- a/cpan/Compress-Raw-Zlib/Changes
+++ b/cpan/Compress-Raw-Zlib/Changes
@@ -1,6 +1,19 @@
 CHANGES
 -------
 
+  2.047 28 January 2012
+
+      * Allow flush to be called multiple times without any intermediate 
+        call to deflate and still return Z_OK.
+        In the code below $status was Z_BUF_ERROR before this change.  
+                      
+          $def->flush(...);
+          $status = $def->flush(...); 
+      
+      * Added support for zlibCompileFlags
+
+      * Set minimum Perl version to 5.6
+
   2.045 3 December 2011
 
       * Moved FAQ.pod into Zlib.pm
diff --git a/cpan/Compress-Raw-Zlib/Makefile.PL b/cpan/Compress-Raw-Zlib/Makefile.PL
index d999cb483a..377bff48d1 100644
--- a/cpan/Compress-Raw-Zlib/Makefile.PL
+++ b/cpan/Compress-Raw-Zlib/Makefile.PL
@@ -1,7 +1,7 @@
 #! perl -w
 
 use strict ;
-require 5.004 ;
+require 5.006 ;
 
 use private::MakeUtil;
 use ExtUtils::MakeMaker 5.16 ;
@@ -66,7 +66,7 @@ WriteMakefile(
     NAME         => 'Compress::Raw::Zlib',
     VERSION_FROM => 'lib/Compress/Raw/Zlib.pm',
     INC          => "-I$ZLIB_INCLUDE" ,
-    DEFINE       => "-DNO_VIZ $OLD_ZLIB $WALL -DGZIP_OS_CODE=$GZIP_OS_CODE $USE_PPPORT_H" ,
+    DEFINE       => "-DNO_VIZ -DZ_SOLO $OLD_ZLIB $WALL -DGZIP_OS_CODE=$GZIP_OS_CODE $USE_PPPORT_H" ,
     XS           => { 'Zlib.xs' => 'Zlib.c'},
     'depend'     => { 'Makefile'   => 'config.in' },
     'clean'      => { FILES        => '*.c constants.h constants.xs' },
diff --git a/cpan/Compress-Raw-Zlib/README b/cpan/Compress-Raw-Zlib/README
index bd90ff4e95..93b6e00ce8 100644
--- a/cpan/Compress-Raw-Zlib/README
+++ b/cpan/Compress-Raw-Zlib/README
@@ -1,11 +1,11 @@
 
                              Compress-Raw-Zlib
 
-                             Version 2.045
+                             Version 2.047
 
-                            3rd December 2011
+                             28th January 2012
 
-       Copyright (c) 2005-2011 Paul Marquess. All rights reserved.
+       Copyright (c) 2005-2012 Paul Marquess. All rights reserved.
           This program is free software; you can redistribute it
            and/or modify it under the same terms as Perl itself.
 
@@ -355,7 +355,7 @@ To help me help you, I need all of the following information:
         If you haven't installed Compress-Raw-Zlib then search Compress::Raw::Zlib.pm
         for a line like this:
 
-          $VERSION = "2.045" ;
+          $VERSION = "2.047" ;
 
      c. The version of zlib you have used.
         If you have successfully installed Compress-Raw-Zlib, this one-liner
diff --git a/cpan/Compress-Raw-Zlib/Zlib.xs b/cpan/Compress-Raw-Zlib/Zlib.xs
index 70713b918e..ebf03ce323 100644
--- a/cpan/Compress-Raw-Zlib/Zlib.xs
+++ b/cpan/Compress-Raw-Zlib/Zlib.xs
@@ -44,6 +44,7 @@
 
 #if  defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1210
 #  define MAGIC_APPEND
+#  define AT_LEAST_ZLIB_1_2_1
 #endif
 
 #if  defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1221
@@ -62,6 +63,13 @@
 #  define AT_LEAST_ZLIB_1_2_3
 #endif
 
+#if  defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1252
+/* 
+    Use Z_SOLO to build source means need own malloc/free
+ */
+#  define AT_LEAST_ZLIB_1_2_5_2
+#endif
+
 #ifdef USE_PPPORT_H
 #  define NEED_sv_2pvbyte
 #  define NEED_sv_2pv_nolen
@@ -482,6 +490,20 @@ DispStream(s, message)
     }
 }
 
+#ifdef AT_LEAST_ZLIB_1_2_5_2
+voidpf my_zcalloc (voidpf opaque, unsigned items, unsigned size)
+{
+    return safemalloc(items * size);
+}
+
+
+void my_zcfree (voidpf opaque, voidpf ptr)
+{
+    return safefree(ptr);
+}
+
+#endif
+
 static di_stream *
 #ifdef CAN_PROTOTYPE
 InitStream(void)
@@ -493,8 +515,12 @@ InitStream()
 
     ZMALLOC(s, di_stream) ;
 
+#ifdef AT_LEAST_ZLIB_1_2_5_2
+    s->stream.zalloc = my_zcalloc;
+    s->stream.zfree = my_zcfree;
+#endif
+
     return s ;
-    
 }
 
 static void
@@ -637,10 +663,19 @@ ZLIB_VERNUM()
         RETVAL  = (ZLIB_VERSION[0] - '0') << 12 ;
         RETVAL += (ZLIB_VERSION[2] - '0') <<  8 ;
         RETVAL += (ZLIB_VERSION[4] - '0') <<  4 ;
+        if (strlen(ZLIB_VERSION) > 5)
+            RETVAL += (ZLIB_VERSION[6] - '0')  ;
 #endif
     OUTPUT:
         RETVAL
 
+
+#ifndef AT_LEAST_ZLIB_1_2_1
+#define zlibCompileFlags() 0
+#endif
+uLong
+zlibCompileFlags()
+
 MODULE = Compress::Raw::Zlib	PACKAGE = Compress::Raw::Zlib	PREFIX = Zip_
 
 #define Zip_adler32(buf, adler) adler32(adler, buf, (uInt)len)
@@ -756,6 +791,9 @@ _deflateInit(flags,level, method, windowBits, memLevel, strategy, bufsize, dicti
         err = deflateInit2(&(s->stream), level, 
 			   method, windowBits, memLevel, strategy);
 
+        if (trace) 
+            warn(" _deflateInit2 returned %d\n", err);
+
 	/* Check if a dictionary has been specified */
 
 	if (err == Z_OK && SvCUR(dictionary)) {
@@ -1008,6 +1046,7 @@ flush(s, output, f=Z_FINISH)
     uInt	increment = NO_INIT
     uInt	prefix    = NO_INIT
     uLong     bufinc = NO_INIT
+    uLong     availableout = NO_INIT    
   CODE:
     bufinc = s->bufsize;
   
@@ -1057,8 +1096,8 @@ flush(s, output, f=Z_FINISH)
 #endif
 
     for (;;) {
-        if (s->stream.avail_out == 0) {
-	    /* consumed all the available output, so extend it */
+        if (s->stream.avail_out == 0) {        
+            /* consumed all the available output, so extend it */
             Sv_Grow(output, SvLEN(output) + bufinc) ;
             cur_length += increment ;
             s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ;
@@ -1066,8 +1105,15 @@ flush(s, output, f=Z_FINISH)
             s->stream.avail_out = increment;
             bufinc *= 2 ;
         }
+        
+        availableout = s->stream.avail_out ;
+        
         RETVAL = deflate(&(s->stream), f);
     
+        /* Ignore the second of two consecutive flushes: */
+        if (availableout == s->stream.avail_out && RETVAL == Z_BUF_ERROR) 
+            RETVAL = Z_OK; 
+        
         /* deflate has finished flushing only when it hasn't used up
          * all the available space in the output buffer: 
          */
diff --git a/cpan/Compress-Raw-Zlib/lib/Compress/Raw/Zlib.pm b/cpan/Compress-Raw-Zlib/lib/Compress/Raw/Zlib.pm
index 69076879a8..ab7dc5b187 100644
--- a/cpan/Compress-Raw-Zlib/lib/Compress/Raw/Zlib.pm
+++ b/cpan/Compress-Raw-Zlib/lib/Compress/Raw/Zlib.pm
@@ -1,33 +1,66 @@
 
 package Compress::Raw::Zlib;
 
-require 5.004 ;
+require 5.006 ;
 require Exporter;
 use AutoLoader;
 use Carp ;
 
-#use Parse::Parameters;
-
 use strict ;
 use warnings ;
 use bytes ;
-our ($VERSION, $XS_VERSION, @ISA, @EXPORT, $AUTOLOAD);
+our ($VERSION, $XS_VERSION, @ISA, @EXPORT, %EXPORT_TAGS, @EXPORT_OK, $AUTOLOAD, %DEFLATE_CONSTANTS, @DEFLATE_CONSTANTS );
 
-$VERSION = '2.045';
+$VERSION = '2.047';
 $XS_VERSION = $VERSION; 
 $VERSION = eval $VERSION;
 
 @ISA = qw(Exporter);
+%EXPORT_TAGS = ( flush     => [qw{  
+                                    Z_NO_FLUSH
+                                    Z_PARTIAL_FLUSH
+                                    Z_SYNC_FLUSH
+                                    Z_FULL_FLUSH
+                                    Z_FINISH
+                                    Z_BLOCK
+                              }],
+                 level     => [qw{  
+                                    Z_NO_COMPRESSION
+                                    Z_BEST_SPEED
+                                    Z_BEST_COMPRESSION
+                                    Z_DEFAULT_COMPRESSION
+                              }],
+                 strategy  => [qw{  
+                                    Z_FILTERED
+                                    Z_HUFFMAN_ONLY
+                                    Z_RLE
+                                    Z_FIXED
+                                    Z_DEFAULT_STRATEGY
+                              }],
+                 status   => [qw{  
+                                    Z_OK
+                                    Z_STREAM_END
+                                    Z_NEED_DICT
+                                    Z_ERRNO
+                                    Z_STREAM_ERROR
+                                    Z_DATA_ERROR  
+                                    Z_MEM_ERROR   
+                                    Z_BUF_ERROR 
+                                    Z_VERSION_ERROR 
+                              }],                              
+              );
+
+%DEFLATE_CONSTANTS = %EXPORT_TAGS;
+
 # Items to export into callers namespace by default. Note: do not export
 # names by default without a very good reason. Use EXPORT_OK instead.
 # Do not simply export all your public functions/methods/constants.
+@DEFLATE_CONSTANTS = 
 @EXPORT = qw(
-        adler32 crc32
-
         ZLIB_VERSION
         ZLIB_VERNUM
 
-        DEF_WBITS
+        
         OS_CODE
 
         MAX_MEM_LEVEL
@@ -68,6 +101,8 @@ $VERSION = eval $VERSION;
         WANT_GZIP_OR_ZLIB
 );
 
+push @EXPORT, qw(crc32 adler32 DEF_WBITS);
+
 use constant WANT_GZIP           => 16;
 use constant WANT_GZIP_OR_ZLIB   => 32;
 
@@ -605,6 +640,7 @@ Compress::Raw::Zlib - Low-Level Interface to zlib compression library
     $crc = crc32_combine($adler1, $adler2, $len2)
 
     my $version = Compress::Raw::Zlib::zlib_version();
+    my $flags = Compress::Raw::Zlib::zlibCompileFlags();
 
 =head1 DESCRIPTION
 
@@ -1266,6 +1302,17 @@ These functions allow checksums to be merged.
 
 Returns the version of the zlib library.
 
+=head2  my $flags = Compress::Raw::Zlib::zlibCompileFlags();
+
+Returns the flags indicating compile-time options that were used to build 
+the zlib library. See the zlib documentation for a description of the flags
+returned by C<zlibCompileFlags>.
+
+Note that when the zlib sources are built along with this module the
+C<sprintf> flags (bits 24, 25 and 26) should be ignored.
+
+If you are using zlib 1.2.0 or older, C<zlibCompileFlags> will return 0. 
+
 =head1 The LimitOutput option.
 
 By default C<< $i->inflate($input, $output) >> will uncompress I<all> data
@@ -1542,7 +1589,7 @@ See the Changes file.
 
 =head1 COPYRIGHT AND LICENSE
 
-Copyright (c) 2005-2011 Paul Marquess. All rights reserved.
+Copyright (c) 2005-2012 Paul Marquess. All rights reserved.
 
 This program is free software; you can redistribute it and/or
 modify it under the same terms as Perl itself.
diff --git a/cpan/Compress-Raw-Zlib/t/02zlib.t b/cpan/Compress-Raw-Zlib/t/02zlib.t
index 52ad065a6f..6ce990d214 100644
--- a/cpan/Compress-Raw-Zlib/t/02zlib.t
+++ b/cpan/Compress-Raw-Zlib/t/02zlib.t
@@ -24,13 +24,13 @@ BEGIN
 
     my $count = 0 ;
     if ($] < 5.005) {
-        $count = 230 ;
+        $count = 232 ;
     }
     elsif ($] >= 5.006) {
-        $count = 300 ;
+        $count = 310 ;
     }
     else {
-        $count = 258 ;
+        $count = 268 ;
     }
 
     plan tests => $count + $extra;
@@ -39,6 +39,8 @@ BEGIN
 }
 
 
+my $Zlib_ver = Compress::Raw::Zlib::zlib_version ;
+
 my $hello = <<EOM ;
 hello world
 this is a test
@@ -428,9 +430,13 @@ for my $consume ( 0 .. 1)
     
 }
 
+SKIP:
 {
     title 'inflateSync';
 
+    skip "inflateSync needs zlib 1.2.1 or better, you have $Zlib_ver", 22 
+        if ZLIB_VERNUM() < 0x1210 ;
+
     # create a deflate stream with flush points
 
     my $hello = "I am a HAL 9000 computer" x 2001 ;
@@ -728,18 +734,26 @@ if ($] >= 5.005)
     
 }
 
+SKIP:
 {
+    skip "InflateScan needs zlib 1.2.1 or better, you have $Zlib_ver", 1 
+        if ZLIB_VERNUM() < 0x1210 ;
+
     # regression - check that resetLastBlockByte can cope with a NULL
     # pointer.
     Compress::Raw::Zlib::InflateScan->new->resetLastBlockByte(undef);
     ok 1, "resetLastBlockByte(undef) is ok" ;
 }
 
+SKIP:
 {
 
     title "gzip mode";
     # ================
 
+    skip "gzip mode needs zlib 1.2.1 or better, you have $Zlib_ver", 13 
+        if ZLIB_VERNUM() < 0x1210 ;
+
     my $hello = "I am a HAL 9000 computer" ;
     my @hello = split('', $hello) ;
     my ($err, $x, $X, $status); 
@@ -780,6 +794,7 @@ if ($] >= 5.005)
     is $GOT, $hello, "uncompressed data matches ok" ;
 }
 
+SKIP:
 {
 
     title "gzip error mode";
@@ -788,6 +803,9 @@ if ($] >= 5.005)
     # then read with WANT_GZIP_OR_ZLIB - thi swill work
     # ================
 
+    skip "gzip mode needs zlib 1.2.1 or better, you have $Zlib_ver", 12 
+        if ZLIB_VERNUM() < 0x1210 ;
+
     my $hello = "I am a HAL 9000 computer" ;
     my ($err, $x, $X, $status); 
  
@@ -826,14 +844,17 @@ if ($] >= 5.005)
     is $GOT, $hello, "uncompressed data matches ok" ;
 }
 
+SKIP:
 {
-
     title "gzip/zlib error mode";
     # Create zlib -
     # read with no WANT_GZIP windowbits setting - this will fail
     # then read with WANT_GZIP_OR_ZLIB - thi swill work
     # ================
 
+    skip "gzip mode needs zlib 1.2.1 or better, you have $Zlib_ver", 12 
+        if ZLIB_VERNUM() < 0x1210 ;
+
     my $hello = "I am a HAL 9000 computer" ;
     my ($err, $x, $X, $status); 
  
@@ -871,6 +892,39 @@ if ($] >= 5.005)
     is $GOT, $hello, "uncompressed data matches ok" ;
 }
 
+{
+    title "zlibCompileFlags";
+
+    my $flags = Compress::Raw::Zlib::zlibCompileFlags;
+
+    if (ZLIB_VERNUM() < 0x1210)
+    {
+        is $flags, 0, "zlibCompileFlags == 0 if < 1.2.1";
+    }
+    else
+    {
+        ok $flags, "zlibCompileFlags != 0 if < 1.2.1";
+    }
+}
+
+{
+    title "repeated calls to flush";
+
+    my $hello = "I am a HAL 9000 computer" ;
+    my ($err, $x, $X, $status); 
+ 
+    ok( ($x, $err) = new Compress::Raw::Zlib::Deflate ( ), "Create deflate object" );
+    isa_ok $x, "Compress::Raw::Zlib::deflateStream" ;
+    cmp_ok $err, '==', Z_OK, "status is Z_OK" ;
+ 
+    $status = $x->deflate($hello, $X) ;
+    cmp_ok $status, '==', Z_OK, "deflate returned Z_OK" ;
+    
+    cmp_ok  $x->flush($X, Z_SYNC_FLUSH), '==', Z_OK, "flush returned Z_OK" ;    
+    cmp_ok  $x->flush($X, Z_SYNC_FLUSH), '==', Z_OK, "second flush returned Z_OK" ; 
+    is $X, "", "no output from second flush";
+}
+
 exit if $] < 5.006 ;
 
 title 'Looping Append test with substr output - substr the end of the string';
diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index baf13e4196..7d02367da1 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -117,6 +117,10 @@ L<Compress::Raw::Bzip2> has been upgraded from version 2.045 to version 2.047.
 
 =item *
 
+L<Compress::Raw::Zlib> has been upgraded from version 2.045 to version 2.047.
+
+=item *
+
 L<DB_File> has been upgraded from version 1.824 to version 1.826.
 
 =item *