Try to merge across changes in zlib from 1.1.2 to 1.1.3.

zlib/Makefile

@@ -22,8 +22,9 @@ CFLAGS=-O
 
 LDFLAGS=-L. -lz
 LDSHARED=$(CC)
+CPP=$(CC) -E
 
-VER=1.1.2
+VER=1.1.3
 LIBS=libz.a
 SHAREDLIB=libz.so
 
@@ -34,21 +35,27 @@ SHELL=/bin/sh
 
 prefix = /usr/local
 exec_prefix = ${prefix}
+libdir = ${exec_prefix}/lib
+includedir = ${prefix}/include
 
 OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
        zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
 
+OBJA =
+# to use the asm code: make OBJA=match.o
+
 TEST_OBJS = example.o minigzip.o
 
-DISTFILES = README INDEX ChangeLog configure Make*[a-z0-9] *.[ch] descrip.mms \
+DISTFILES = README FAQ INDEX ChangeLog configure Make*[a-z0-9] *.[ch] *.mms \
   algorithm.txt zlib.3 msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \
-  nt/Makefile.nt nt/zlib.dnt amiga/Make*.??? contrib/README.contrib \
-  contrib/*.txt contrib/asm386/*.asm contrib/asm386/*.c \
-  contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/iostream/*.cpp \
+  nt/Make*[a-z0-9] nt/zlib.dnt amiga/Make*.??? os2/M*.os2 os2/zlib.def \
+  contrib/RE*.contrib contrib/*.txt contrib/asm386/*.asm contrib/asm386/*.c \
+  contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/asm[56]86/*.?86 \
+  contrib/asm[56]86/*.S contrib/iostream/*.cpp \
   contrib/iostream/*.h  contrib/iostream2/*.h contrib/iostream2/*.cpp \
   contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32 \
-  contrib/minizip/[CM]*[pe] contrib/minizip/*.[ch] contrib/minizip/*.[td]??
-
+  contrib/minizip/[CM]*[pe] contrib/minizip/*.[ch] contrib/minizip/*.[td]?? \
+  contrib/delphi*/*.???
 
 all: example minigzip
 
@@ -62,10 +69,16 @@ test: all
 	  echo '		*** zlib test FAILED ***'; \
 	fi
 
-libz.a: $(OBJS)
-	$(AR) $@ $(OBJS)
+libz.a: $(OBJS) $(OBJA)
+	$(AR) $@ $(OBJS) $(OBJA)
 	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
 
+match.o: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c _match.s
+	mv _match.o match.o
+	rm -f _match.s
+
 $(SHAREDLIB).$(VER): $(OBJS)
 	$(LDSHARED) -o $@ $(OBJS)
 	rm -f $(SHAREDLIB) $(SHAREDLIB).1
@@ -79,14 +92,14 @@ minigzip: minigzip.o $(LIBS)
 	$(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS)
 
 install: $(LIBS)
-	-@if [ ! -d $(prefix)/include  ]; then mkdir $(prefix)/include; fi
-	-@if [ ! -d $(exec_prefix)/lib ]; then mkdir $(exec_prefix)/lib; fi
-	cp zlib.h zconf.h $(prefix)/include
-	chmod 644 $(prefix)/include/zlib.h $(prefix)/include/zconf.h
-	cp $(LIBS) $(exec_prefix)/lib
-	cd $(exec_prefix)/lib; chmod 755 $(LIBS)
-	-@(cd $(exec_prefix)/lib; $(RANLIB) libz.a || true) >/dev/null 2>&1
-	cd $(exec_prefix)/lib; if test -f $(SHAREDLIB).$(VER); then \
+	-@if [ ! -d $(includedir)  ]; then mkdir $(includedir); fi
+	-@if [ ! -d $(libdir) ]; then mkdir $(libdir); fi
+	cp zlib.h zconf.h $(includedir)
+	chmod 644 $(includedir)/zlib.h $(includedir)/zconf.h
+	cp $(LIBS) $(libdir)
+	cd $(libdir); chmod 755 $(LIBS)
+	-@(cd $(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
+	cd $(libdir); if test -f $(SHAREDLIB).$(VER); then \
 	  rm -f $(SHAREDLIB) $(SHAREDLIB).1; \
 	  ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB); \
 	  ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB).1; \
@@ -96,19 +109,20 @@ install: $(LIBS)
 # ldconfig is for Linux
 
 uninstall:
-	cd $(prefix)/include; \
+	cd $(includedir); \
 	v=$(VER); \
 	if test -f zlib.h; then \
 	  v=`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`; \
           rm -f zlib.h zconf.h; \
 	fi; \
-	cd $(exec_prefix)/lib; rm -f libz.a; \
+	cd $(libdir); rm -f libz.a; \
 	if test -f $(SHAREDLIB).$$v; then \
 	  rm -f $(SHAREDLIB).$$v $(SHAREDLIB) $(SHAREDLIB).1; \
 	fi
 
 clean:
-	rm -f *.o *~ example minigzip libz.a libz.so* foo.gz
+	rm -f *.o *~ example minigzip libz.a libz.so* foo.gz so_locations \
+	   _match.s maketree
 
 distclean:	clean
 

zlib/README

-zlib 1.1.2 is a general purpose data compression library.  All the code
+zlib 1.1.3 is a general purpose data compression library.  All the code
 is thread safe.  The data format used by the zlib library
 is described by RFCs (Request for Comments) 1950 to 1952 in the files 
 ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
@@ -14,35 +14,41 @@ except example.c and minigzip.c.
 
 To compile all files and run the test program, follow the instructions
 given at the top of Makefile. In short "make test; make install"
-should work for most machines.  For MSDOS, use one of the special
-makefiles such as Makefile.msc; for VMS, use Make_vms.com or descrip.mms.
+should work for most machines. For Unix: "configure; make test; make install"
+For MSDOS, use one of the special makefiles such as Makefile.msc.
+For VMS, use Make_vms.com or descrip.mms.
 
-Questions about zlib should be sent to <zlib@quest.jpl.nasa.gov> or,
-if this fails, to the addresses given below in the Copyright section.
+Questions about zlib should be sent to <zlib@quest.jpl.nasa.gov>, or to
+Gilles Vollant <info@winimage.com> for the Windows DLL version.
 The zlib home page is http://www.cdrom.com/pub/infozip/zlib/
 The official zlib ftp site is ftp://ftp.cdrom.com/pub/infozip/zlib/
+Before reporting a problem, please check those sites to verify that
+you have the latest version of zlib; otherwise get the latest version and
+check whether the problem still exists or not.
+
 Mark Nelson <markn@tiny.com> wrote an article about zlib for the Jan. 1997
 issue of  Dr. Dobb's Journal; a copy of the article is available in
 http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm
 
-The changes made in version 1.1.2 are documented in the file ChangeLog.
-The main changes since 1.1.1 are:
-
-- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
-  See http://www.winimage.com/zLibDll/unzip.html
-- preinitialize the inflate tables for fixed codes, to make the code
-  completely thread safe (Mark)
-- some simplifications and slight speed-up to the inflate code (Mark)
-- fix gzeof on non-compressed files (Allan Schrum)
-- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
-- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
-- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
-- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
-- do not wrap extern "C" around system includes (Tom Lane)
-- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
-- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
-- allow "configure --prefix $HOME" (Tim Mooney)
-
+The changes made in version 1.1.3 are documented in the file ChangeLog.
+The main changes since 1.1.2 are:
+
+- fix "an inflate input buffer bug that shows up on rare but persistent
+  occasions" (Mark)
+- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
+- fix gzseek(..., SEEK_SET) in write mode
+- fix crc check after a gzeek (Frank Faubert)
+- fix miniunzip when the last entry in a zip file is itself a zip file
+  (J Lillge)
+- add contrib/asm586 and contrib/asm686 (Brian Raiter)
+  See http://www.muppetlabs.com/~breadbox/software/assembly.html
+- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
+- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
+- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
+- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
+- added a FAQ file
+
+plus many changes for portability.
 
 Unsupported third party contributions are provided in directory "contrib".
 
@@ -55,8 +61,8 @@ is in the CPAN (Comprehensive Perl Archive Network) sites, such as:
 ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib*
 
 A Python interface to zlib written by A.M. Kuchling <amk@magnet.com>
-is available from the Python Software Association sites, such as:
-ftp://ftp.python.org/pub/python/contrib/Encoding/zlib*.tar.gz
+is available in Python 1.5 and later versions, see
+http://www.python.org/doc/lib/module-zlib.html
 
 A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com>
 is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
@@ -77,8 +83,8 @@ Notes for some targets:
 
   From Visual Basic, you can call the DLL functions which do not take
   a structure as argument: compress, uncompress and all gz* functions.
-  See contrib/visual-basic.txt for more information.
-  I don't know how to handle structures in Visual Basic, sorry.
+  See contrib/visual-basic.txt for more information, or get
+  http://www.tcfb.com/dowseware/cmp-z-it.zip
 
 - For 64-bit Irix, deflate.c must be compiled without any optimization.
   With -O, one libpng test fails. The test works in 32 bit mode (with
@@ -93,15 +99,14 @@ Notes for some targets:
 - zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works
   with other compilers. Use "make test" to check your compiler.
 
-- For shared memory multiprocessors, the decompression code assumes that
-  writes to pointers are atomic. Also the functions zalloc and zfree passed
-  to deflateInit must be multi-threaded in this case.
-
 - gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.
 
 - For Turbo C the small model is supported only with reduced performance to
   avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
 
+- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html
+  Per Harald Myrvang <perm@stud.cs.uit.no>
+
 
 Acknowledgments: