[csw-devel] SF.net SVN: gar:[8177] csw/mgar/pkg/gzip/trunk
dmichelsen at users.sourceforge.net
dmichelsen at users.sourceforge.net
Mon Jan 25 17:24:22 CET 2010
Revision: 8177
http://gar.svn.sourceforge.net/gar/?rev=8177&view=rev
Author: dmichelsen
Date: 2010-01-25 16:24:21 +0000 (Mon, 25 Jan 2010)
Log Message:
-----------
gzip: Fix rsyncable
Modified Paths:
--------------
csw/mgar/pkg/gzip/trunk/Makefile
csw/mgar/pkg/gzip/trunk/checksums
Added Paths:
-----------
csw/mgar/pkg/gzip/trunk/files/gzip-1.3.9-rsync.patch
Removed Paths:
-------------
csw/mgar/pkg/gzip/trunk/files/gzip.rsync.patch
Modified: csw/mgar/pkg/gzip/trunk/Makefile
===================================================================
--- csw/mgar/pkg/gzip/trunk/Makefile 2010-01-25 15:09:11 UTC (rev 8176)
+++ csw/mgar/pkg/gzip/trunk/Makefile 2010-01-25 16:24:21 UTC (rev 8177)
@@ -18,11 +18,9 @@
# For one possible approach to this, please see:
# http://www.samba.org/netfilter/diary/gzip.rsync.patch
#
-# An updated version is available at
-# http://ozlabs.org/~rusty/gzip.rsync.patch2
-#
-# Unfortunately both don't apply cleanly. Disable for now.
-# PATCHFILES += gzip.rsync.patch2
+# Update patch from
+# http://cvs.fedoraproject.org/viewvc/rpms/gzip/F-12/gzip-1.3.9-rsync.patch?revision=1.2&content-type=text%2Fplain&view=co
+PATCHFILES += gzip-1.3.9-rsync.patch
# We define upstream file regex so we can be notifed of new upstream software release
UFILES_REGEX = $(GARNAME)-(\d+(?:\.\d+)*).tar.gz
Modified: csw/mgar/pkg/gzip/trunk/checksums
===================================================================
--- csw/mgar/pkg/gzip/trunk/checksums 2010-01-25 15:09:11 UTC (rev 8176)
+++ csw/mgar/pkg/gzip/trunk/checksums 2010-01-25 16:24:21 UTC (rev 8177)
@@ -1,3 +1,3 @@
54776a402c7f43e4ece76c96a8e6518d 0001-Force-ggrep-as-Solaris-grep-doesn-t-understand-the-f.patch
+d2e81e20767a85f799f56812d74b547a gzip-1.3.9-rsync.patch
e381b8506210c794278f5527cba0e765 gzip-1.4.tar.gz
-ee3a4df1c68f911ca9f05515346b3b3e gzip.rsync.patch2
Added: csw/mgar/pkg/gzip/trunk/files/gzip-1.3.9-rsync.patch
===================================================================
--- csw/mgar/pkg/gzip/trunk/files/gzip-1.3.9-rsync.patch (rev 0)
+++ csw/mgar/pkg/gzip/trunk/files/gzip-1.3.9-rsync.patch 2010-01-25 16:24:21 UTC (rev 8177)
@@ -0,0 +1,280 @@
+diff -up gzip-1.3.12/trees.c.rsync gzip-1.3.12/trees.c
+--- gzip-1.3.12/trees.c.rsync 2006-11-20 09:40:33.000000000 +0100
++++ gzip-1.3.12/trees.c 2008-09-01 14:35:12.000000000 +0200
+@@ -860,9 +860,10 @@ local void send_all_trees(lcodes, dcodes
+ * trees or store, and output the encoded block to the zip file. This function
+ * returns the total compressed length for the file so far.
+ */
+-off_t flush_block(buf, stored_len, eof)
++off_t flush_block(buf, stored_len, pad, eof)
+ char *buf; /* input block, or NULL if too old */
+ ulg stored_len; /* length of input block */
++ int pad; /* pad output to byte boundary */
+ int eof; /* true if this is the last block for a file */
+ {
+ ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
+@@ -955,6 +956,10 @@ off_t flush_block(buf, stored_len, eof)
+ Assert (input_len == bytes_in, "bad input size");
+ bi_windup();
+ compressed_len += 7; /* align on byte boundary */
++ } else if (pad && (compressed_len % 8) != 0) {
++ send_bits((STORED_BLOCK<<1)+eof, 3); /* send block type */
++ compressed_len = (compressed_len + 3 + 7) & ~7L;
++ copy_block(buf, 0, 1); /* with header */
+ }
+
+ return compressed_len >> 3;
+diff -up gzip-1.3.12/deflate.c.rsync gzip-1.3.12/deflate.c
+--- gzip-1.3.12/deflate.c.rsync 2006-12-08 00:53:00.000000000 +0100
++++ gzip-1.3.12/deflate.c 2008-09-01 14:35:12.000000000 +0200
+@@ -135,6 +135,14 @@ static char rcsid[] = "$Id: deflate.c,v
+ #endif
+ /* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
+
++#ifndef RSYNC_WIN
++# define RSYNC_WIN 4096
++#endif
++/* Size of rsync window, must be < MAX_DIST */
++
++#define RSYNC_SUM_MATCH(sum) ((sum) % RSYNC_WIN == 0)
++/* Whether window sum matches magic value */
++
+ /* ===========================================================================
+ * Local data used by the "longest match" routines.
+ */
+@@ -216,6 +224,8 @@ local int compr_level;
+ unsigned near good_match;
+ /* Use a faster search when the previous match is longer than this */
+
++local ulg rsync_sum; /* rolling sum of rsync window */
++local ulg rsync_chunk_end; /* next rsync sequence point */
+
+ /* Values for max_lazy_match, good_match and max_chain_length, depending on
+ * the desired pack level (0..9). The values given below have been tuned to
+@@ -314,6 +324,10 @@ void lm_init (pack_level, flags)
+ #endif
+ /* prev will be initialized on the fly */
+
++ /* rsync params */
++ rsync_chunk_end = 0xFFFFFFFFUL;
++ rsync_sum = 0;
++
+ /* Set the default configuration parameters:
+ */
+ max_lazy_match = configuration_table[pack_level].max_lazy;
+@@ -550,6 +564,8 @@ local void fill_window()
+ memcpy((char*)window, (char*)window+WSIZE, (unsigned)WSIZE);
+ match_start -= WSIZE;
+ strstart -= WSIZE; /* we now have strstart >= MAX_DIST: */
++ if (rsync_chunk_end != 0xFFFFFFFFUL)
++ rsync_chunk_end -= WSIZE;
+
+ block_start -= (long) WSIZE;
+
+@@ -577,13 +593,46 @@ local void fill_window()
+ }
+ }
+
++local void rsync_roll(start, num)
++ unsigned start;
++ unsigned num;
++{
++ unsigned i;
++
++ if (start < RSYNC_WIN) {
++ /* before window fills. */
++ for (i = start; i < RSYNC_WIN; i++) {
++ if (i == start + num) return;
++ rsync_sum += (ulg)window[i];
++ }
++ num -= (RSYNC_WIN - start);
++ start = RSYNC_WIN;
++ }
++
++ /* buffer after window full */
++ for (i = start; i < start+num; i++) {
++ /* New character in */
++ rsync_sum += (ulg)window[i];
++ /* Old character out */
++ rsync_sum -= (ulg)window[i - RSYNC_WIN];
++ if (rsync_chunk_end == 0xFFFFFFFFUL && RSYNC_SUM_MATCH(rsync_sum))
++ rsync_chunk_end = i;
++ }
++}
++
++/* ===========================================================================
++ * Set rsync_chunk_end if window sum matches magic value.
++ */
++#define RSYNC_ROLL(s, n) \
++ do { if (rsync) rsync_roll((s), (n)); } while(0)
++
+ /* ===========================================================================
+ * Flush the current block, with given end-of-file flag.
+ * IN assertion: strstart is set to the end of the current match.
+ */
+ #define FLUSH_BLOCK(eof) \
+ flush_block(block_start >= 0L ? (char*)&window[(unsigned)block_start] : \
+- (char*)NULL, (long)strstart - block_start, (eof))
++ (char*)NULL, (long)strstart - block_start, flush-1, (eof))
+
+ /* ===========================================================================
+ * Processes a new input file and return its compressed length. This
+@@ -594,7 +643,7 @@ local void fill_window()
+ local off_t deflate_fast()
+ {
+ IPos hash_head; /* head of the hash chain */
+- int flush; /* set if current block must be flushed */
++ int flush; /* set if current block must be flushed, 2=>and padded */
+ unsigned match_length = 0; /* length of best match */
+
+ prev_length = MIN_MATCH-1;
+@@ -624,6 +673,7 @@ local off_t deflate_fast()
+
+ lookahead -= match_length;
+
++ RSYNC_ROLL(strstart, match_length);
+ /* Insert new strings in the hash table only if the match length
+ * is not too large. This saves time but degrades compression.
+ */
+@@ -652,9 +702,14 @@ local off_t deflate_fast()
+ /* No match, output a literal byte */
+ Tracevv((stderr,"%c",window[strstart]));
+ flush = ct_tally (0, window[strstart]);
++ RSYNC_ROLL(strstart, 1);
+ lookahead--;
+ strstart++;
+ }
++ if (rsync && strstart > rsync_chunk_end) {
++ rsync_chunk_end = 0xFFFFFFFFUL;
++ flush = 2;
++ }
+ if (flush) FLUSH_BLOCK(0), block_start = strstart;
+
+ /* Make sure that we always have enough lookahead, except
+@@ -728,6 +783,7 @@ off_t deflate()
+ */
+ lookahead -= prev_length-1;
+ prev_length -= 2;
++ RSYNC_ROLL(strstart, prev_length+1);
+ do {
+ strstart++;
+ INSERT_STRING(strstart, hash_head);
+@@ -740,24 +796,40 @@ off_t deflate()
+ match_available = 0;
+ match_length = MIN_MATCH-1;
+ strstart++;
+- if (flush) FLUSH_BLOCK(0), block_start = strstart;
+
++ if (rsync && strstart > rsync_chunk_end) {
++ rsync_chunk_end = 0xFFFFFFFFUL;
++ flush = 2;
++ }
++ if (flush) FLUSH_BLOCK(0), block_start = strstart;
+ } else if (match_available) {
+ /* If there was no match at the previous position, output a
+ * single literal. If there was a match but the current match
+ * is longer, truncate the previous match to a single literal.
+ */
+ Tracevv((stderr,"%c",window[strstart-1]));
+- if (ct_tally (0, window[strstart-1])) {
+- FLUSH_BLOCK(0), block_start = strstart;
++ flush = ct_tally (0, window[strstart-1]);
++ if (rsync && strstart > rsync_chunk_end) {
++ rsync_chunk_end = 0xFFFFFFFFUL;
++ flush = 2;
+ }
++ if (flush) FLUSH_BLOCK(0), block_start = strstart;
++ RSYNC_ROLL(strstart, 1);
+ strstart++;
+ lookahead--;
+ } else {
+ /* There is no previous match to compare with, wait for
+ * the next step to decide.
+ */
++ if (rsync && strstart > rsync_chunk_end) {
++ /* Reset huffman tree */
++ rsync_chunk_end = 0xFFFFFFFFUL;
++ flush = 2;
++ FLUSH_BLOCK(0), block_start = strstart;
++ }
++
+ match_available = 1;
++ RSYNC_ROLL(strstart, 1);
+ strstart++;
+ lookahead--;
+ }
+diff -up gzip-1.3.12/gzip.c.rsync gzip-1.3.12/gzip.c
+--- gzip-1.3.12/gzip.c.rsync 2007-03-20 06:09:51.000000000 +0100
++++ gzip-1.3.12/gzip.c 2008-09-01 14:35:12.000000000 +0200
+@@ -231,6 +231,7 @@ int ofd; /* output fil
+ unsigned insize; /* valid bytes in inbuf */
+ unsigned inptr; /* index of next byte to be processed in inbuf */
+ unsigned outcnt; /* bytes in output buffer */
++int rsync = 0; /* make ryncable chunks */
+
+ struct option longopts[] =
+ {
+@@ -260,6 +261,7 @@ struct option longopts[] =
+ {"best", 0, 0, '9'}, /* compress better */
+ {"lzw", 0, 0, 'Z'}, /* make output compatible with old compress */
+ {"bits", 1, 0, 'b'}, /* max number of bits per code (implies -Z) */
++ {"rsyncable", 0, 0, 'R'}, /* make rsync-friendly archive */
+ { 0, 0, 0, 0 }
+ };
+
+@@ -341,6 +343,7 @@ local void help()
+ " -Z, --lzw produce output compatible with old compress",
+ " -b, --bits=BITS max number of bits per code (implies -Z)",
+ #endif
++ " --rsyncable Make rsync-friendly archive",
+ "",
+ "With no FILE, or when FILE is -, read standard input.",
+ "",
+@@ -469,6 +472,9 @@ int main (argc, argv)
+ recursive = 1;
+ #endif
+ break;
++
++ case 'R':
++ rsync = 1; break;
+ case 'S':
+ #ifdef NO_MULTIPLE_DOTS
+ if (*optarg == '.') optarg++;
+diff -up gzip-1.3.12/gzip.h.rsync gzip-1.3.12/gzip.h
+--- gzip-1.3.12/gzip.h.rsync 2007-03-20 06:09:51.000000000 +0100
++++ gzip-1.3.12/gzip.h 2008-09-01 14:35:12.000000000 +0200
+@@ -158,6 +158,7 @@ EXTERN(uch, window); /* Sliding
+ extern unsigned insize; /* valid bytes in inbuf */
+ extern unsigned inptr; /* index of next byte to be processed in inbuf */
+ extern unsigned outcnt; /* bytes in output buffer */
++extern int rsync; /* deflate into rsyncable chunks */
+
+ extern off_t bytes_in; /* number of input bytes */
+ extern off_t bytes_out; /* number of output bytes */
+@@ -306,7 +307,7 @@ off_t deflate OF((void));
+ /* in trees.c */
+ void ct_init OF((ush *attr, int *method));
+ int ct_tally OF((int dist, int lc));
+-off_t flush_block OF((char *buf, ulg stored_len, int eof));
++off_t flush_block OF((char *buf, ulg stored_len, int pad, int eof));
+
+ /* in bits.c */
+ void bi_init OF((file_t zipfile));
+diff -up gzip-1.3.12/doc/gzip.texi.rsync gzip-1.3.12/doc/gzip.texi
+--- gzip-1.3.12/doc/gzip.texi.rsync 2007-02-06 00:29:04.000000000 +0100
++++ gzip-1.3.12/doc/gzip.texi 2008-09-01 14:35:12.000000000 +0200
+@@ -350,6 +350,14 @@ specified on the command line are direct
+ into the directory and compress all the files it finds there (or
+ decompress them in the case of @command{gunzip}).
+
++ at item --rsyncable
++While compressing, synchronize the output occasionally based on the
++input. This reduces compression by about 1 percent most cases, but
++means that the @code{rsync} program can take advantage of similarities
++in the uncompressed input when syncronizing two files compressed with
++this flag. @code{gunzip} cannot tell the difference between a
++compressed file created with this option, and one created without it.
++
+ @item --suffix @var{suf}
+ @itemx -S @var{suf}
+ Use suffix @var{suf} instead of @samp{.gz}. Any suffix can be
Deleted: csw/mgar/pkg/gzip/trunk/files/gzip.rsync.patch
===================================================================
--- csw/mgar/pkg/gzip/trunk/files/gzip.rsync.patch 2010-01-25 15:09:11 UTC (rev 8176)
+++ csw/mgar/pkg/gzip/trunk/files/gzip.rsync.patch 2010-01-25 16:24:21 UTC (rev 8177)
@@ -1,252 +0,0 @@
-diff -ur gzip-1.2.4.debian/deflate.c gzip-1.2.4-working/deflate.c
---- gzip-1.2.4.debian/deflate.c Fri Aug 13 22:35:31 1993
-+++ gzip-1.2.4-working/deflate.c Wed Oct 18 18:03:04 2000
-@@ -121,6 +121,14 @@
- #endif
- /* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
-
-+#ifndef RSYNC_WIN
-+# define RSYNC_WIN 8192
-+#endif
-+/* Size of rsync window, must be < MAX_DIST */
-+
-+#define RSYNC_SUM_MATCH(sum) (((sum) & (RSYNC_WIN - 1)) == 0)
-+/* Whether window sum matches magic value */
-+
- /* ===========================================================================
- * Local data used by the "longest match" routines.
- */
-@@ -202,6 +210,8 @@
- unsigned near good_match;
- /* Use a faster search when the previous match is longer than this */
-
-+local ulg rsync_sum; /* rolling sum of rsync window */
-+local ulg rsync_chunk_end; /* next rsync sequence point */
-
- /* Values for max_lazy_match, good_match and max_chain_length, depending on
- * the desired pack level (0..9). The values given below have been tuned to
-@@ -300,6 +310,10 @@
- #endif
- /* prev will be initialized on the fly */
-
-+ /* rsync params */
-+ rsync_chunk_end = 0xFFFFFFFFUL;
-+ rsync_sum = 0;
-+
- /* Set the default configuration parameters:
- */
- max_lazy_match = configuration_table[pack_level].max_lazy;
-@@ -317,6 +331,7 @@
-
- strstart = 0;
- block_start = 0L;
-+ rsync_chunk_end = 0xFFFFFFFFUL;
- #ifdef ASMV
- match_init(); /* initialize the asm code */
- #endif
-@@ -536,6 +551,8 @@
- memcpy((char*)window, (char*)window+WSIZE, (unsigned)WSIZE);
- match_start -= WSIZE;
- strstart -= WSIZE; /* we now have strstart >= MAX_DIST: */
-+ if (rsync_chunk_end != 0xFFFFFFFFUL)
-+ rsync_chunk_end -= WSIZE;
-
- block_start -= (long) WSIZE;
-
-@@ -563,6 +580,39 @@
- }
- }
-
-+local void rsync_roll(start, num)
-+ unsigned start;
-+ unsigned num;
-+{
-+ unsigned i;
-+
-+ if (start < RSYNC_WIN) {
-+ /* before window fills. */
-+ for (i = start; i < RSYNC_WIN; i++) {
-+ if (i == start + num) return;
-+ rsync_sum += (ulg)window[i];
-+ }
-+ num -= (RSYNC_WIN - start);
-+ start = RSYNC_WIN;
-+ }
-+
-+ /* buffer after window full */
-+ for (i = start; i < start+num; i++) {
-+ /* New character in */
-+ rsync_sum += (ulg)window[i];
-+ /* Old character out */
-+ rsync_sum -= (ulg)window[i - RSYNC_WIN];
-+ if (rsync_chunk_end == 0xFFFFFFFFUL && RSYNC_SUM_MATCH(rsync_sum))
-+ rsync_chunk_end = i;
-+ }
-+}
-+
-+/* ===========================================================================
-+ * Set rsync_chunk_end if window sum matches magic value.
-+ */
-+#define RSYNC_ROLL(s, n) \
-+ do { if (rsync) rsync_roll((s), (n)); } while(0)
-+
- /* ===========================================================================
- * Flush the current block, with given end-of-file flag.
- * IN assertion: strstart is set to the end of the current match.
-@@ -609,6 +659,7 @@
-
- lookahead -= match_length;
-
-+ RSYNC_ROLL(strstart, match_length);
- /* Insert new strings in the hash table only if the match length
- * is not too large. This saves time but degrades compression.
- */
-@@ -637,9 +688,18 @@
- /* No match, output a literal byte */
- Tracevv((stderr,"%c",window[strstart]));
- flush = ct_tally (0, window[strstart]);
-+ RSYNC_ROLL(strstart, 1);
- lookahead--;
- strstart++;
- }
-+ if (rsync && strstart > rsync_chunk_end) {
-+ ush attr = 0; /* ascii/binary flag */
-+
-+ flush = 1;
-+ /* Reset huffman tree */
-+ ct_init(&attr, &method);
-+ rsync_chunk_end = 0xFFFFFFFFUL;
-+ }
- if (flush) FLUSH_BLOCK(0), block_start = strstart;
-
- /* Make sure that we always have enough lookahead, except
-@@ -715,6 +775,7 @@
- */
- lookahead -= prev_length-1;
- prev_length -= 2;
-+ RSYNC_ROLL(strstart, prev_length+1);
- do {
- strstart++;
- INSERT_STRING(strstart, hash_head);
-@@ -727,24 +788,51 @@
- match_available = 0;
- match_length = MIN_MATCH-1;
- strstart++;
-- if (flush) FLUSH_BLOCK(0), block_start = strstart;
-
-+ if (rsync && strstart > rsync_chunk_end) {
-+ ush attr = 0; /* ascii/binary flag */
-+
-+ /* Reset huffman tree */
-+ ct_init(&attr, &method);
-+ rsync_chunk_end = 0xFFFFFFFFUL;
-+ flush = 1;
-+ }
-+ if (flush) FLUSH_BLOCK(0), block_start = strstart;
- } else if (match_available) {
- /* If there was no match at the previous position, output a
- * single literal. If there was a match but the current match
- * is longer, truncate the previous match to a single literal.
- */
- Tracevv((stderr,"%c",window[strstart-1]));
-- if (ct_tally (0, window[strstart-1])) {
-- FLUSH_BLOCK(0), block_start = strstart;
-- }
-+ flush = ct_tally (0, window[strstart-1]);
-+ if (rsync && strstart > rsync_chunk_end) {
-+ ush attr = 0; /* ascii/binary flag */
-+
-+ /* Reset huffman tree */
-+ ct_init(&attr, &method);
-+ rsync_chunk_end = 0xFFFFFFFFUL;
-+
-+ flush = 1;
-+ }
-+ if (flush) FLUSH_BLOCK(0), block_start = strstart;
-+ RSYNC_ROLL(strstart, 1);
- strstart++;
- lookahead--;
- } else {
- /* There is no previous match to compare with, wait for
- * the next step to decide.
- */
-+ if (rsync && strstart > rsync_chunk_end) {
-+ ush attr = 0; /* ascii/binary flag */
-+
-+ /* Reset huffman tree */
-+ ct_init(&attr, &method);
-+ rsync_chunk_end = 0xFFFFFFFFUL;
-+
-+ FLUSH_BLOCK(0), block_start = strstart;
-+ }
- match_available = 1;
-+ RSYNC_ROLL(strstart, 1);
- strstart++;
- lookahead--;
- }
-diff -ur gzip-1.2.4.debian/gzip.c gzip-1.2.4-working/gzip.c
---- gzip-1.2.4.debian/gzip.c Wed Oct 18 16:05:08 2000
-+++ gzip-1.2.4-working/gzip.c Wed Oct 18 15:42:59 2000
-@@ -239,6 +239,7 @@
- unsigned insize; /* valid bytes in inbuf */
- unsigned inptr; /* index of next byte to be processed in inbuf */
- unsigned outcnt; /* bytes in output buffer */
-+int rsync = 0; /* make ryncable chunks */
-
- struct option longopts[] =
- {
-@@ -268,6 +269,7 @@
- {"best", 0, 0, '9'}, /* compress better */
- {"lzw", 0, 0, 'Z'}, /* make output compatible with old compress */
- {"bits", 1, 0, 'b'}, /* max number of bits per code (implies -Z) */
-+ {"rsyncable", 0, 0, 'R'}, /* make rsync-friendly archive */
- { 0, 0, 0, 0 }
- };
-
-@@ -357,6 +359,7 @@
- " -Z --lzw produce output compatible with old compress",
- " -b --bits maxbits max number of bits per code (implies -Z)",
- #endif
-+ " --rsyncable Make rsync-friendly archive",
- " file... files to (de)compress. If none given, use standard input.",
- 0};
- char **p = help_msg;
-@@ -516,6 +519,9 @@
- #else
- recursive = 1; break;
- #endif
-+ case 'R':
-+ rsync = 1; break;
-+
- case 'S':
- #ifdef NO_MULTIPLE_DOTS
- if (*optarg == '.') optarg++;
-diff -ur gzip-1.2.4.debian/gzip.h gzip-1.2.4-working/gzip.h
---- gzip-1.2.4.debian/gzip.h Wed Oct 18 16:05:08 2000
-+++ gzip-1.2.4-working/gzip.h Wed Oct 18 17:57:48 2000
-@@ -131,6 +131,7 @@
- extern unsigned insize; /* valid bytes in inbuf */
- extern unsigned inptr; /* index of next byte to be processed in inbuf */
- extern unsigned outcnt; /* bytes in output buffer */
-+extern int rsync; /* deflate into rsyncable chunks */
-
- extern long bytes_in; /* number of input bytes */
- extern long bytes_out; /* number of output bytes */
-diff -ur gzip-1.2.4.debian/gzip.texi gzip-1.2.4-working/gzip.texi
---- gzip-1.2.4.debian/gzip.texi Thu Aug 19 06:42:50 1993
-+++ gzip-1.2.4-working/gzip.texi Wed Oct 18 16:58:05 2000
-@@ -316,6 +316,14 @@
- into the directory and compress all the files it finds there (or
- decompress them in the case of @code{gunzip}).
-
-+ at item --rsyncable
-+While compressing, synchronize the output occasionally based on the
-+input. This can reduce the compression slightly in some cases, but
-+means that the @code{rsync} program can take advantage of similarities
-+in the uncompressed input when syncronizing two files compressed with
-+this flag. @code{gunzip} cannot tell the difference between a
-+compressed file created with this option, and one created without it.
-+
- @item --suffix @var{suf}
- @itemx -S @var{suf}
- Use suffix @samp{@var{suf}} instead of @samp{.gz}. Any suffix can be
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