INSTALL
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- __________________________________________________________________________
- This is the Info-ZIP file INSTALL (for UnZip), last updated 28 Nov 98.
- __________________________________________________________________________
- Yes, this is a rather long file, but don't be intimidated: much of its
- length is due to coverage of multiple operating systems and of optional
- customization features, large portions of which may be skipped.
- __________________________________________________________________________
- To compile UnZip, UnZipSFX and/or fUnZip (quick-start instructions):
- ========================================
- (1) Unpack everything into a work directory somewhere, and make sure you're
- in the main UnZip directory (the one with this file in it).
- * (See note below concerning line termination format used in the source
- distribution)
- (2) Copy the appropriate makefile into the current directory, except under
- OS/2.
- (3) Run your "make" utility on the makefile (e.g., "nmake -f makefile.msc").
- (4) Try out your new UnZip the way you would any new utility: read the
- docs first.
- Ah ha ha ha!! Oh, that kills me. But seriously...for VMS, UnZip must
- be installed as a "foreign symbol"; see the Install section below or
- [.vms]readme.vms for details. (It basically involves adding a line
- sort of like this to login.com: $ unzip == "$disk:[dir]unzip.exe")
- For DOS and other OSes without explicit timezone support (i.e., everybody
- but Unix, Windows 95 and NT), make sure the "TZ" environment variable is
- set to a valid and reasonable value; see your compiler docs for details.
- (*) The unzip sources as well as other Info-ZIP source archives are packaged
- in Unix format. All text files use single LF (Ascii 0x0a) characters as
- line terminators. On systems that use different conventions for plain text
- files (e.g.:DOS,Win9x,WinNT,OS/2 -> combined CR+LF; MacOS -> single CR),
- some utilities (editors, compilers, etc.) may not accept source files
- with LF line terminators.
- For these systems, we recommend to use Info-ZIP's UnZip utility for
- extraction of our distribution archives, applying the command option
- "-a" (= translate text files to native format) in the extraction command.
- In case this procedure is not applicable, an appropiate third-party
- conversion utility may be used to achieve the desired line termination
- style (examples: "flip", available for Unix, DOS, OS/2; or "tr" on Unix).
- To compile UnZip, UnZipSFX and/or fUnZip (detailed instructions):
- ========================================
- (1) Unpack *.c and *.h (the actual source files), preserving the directory
- structure (e.g., ./unix/unix.c). The sole exception is TOPS-20, where
- tops20/* should be unpacked into the current directory, but TOPS-20
- is no longer fully supported anyway.
- If you wish to compile with decryption enabled, you must get the zcrypt
- package (see the "WHERE" file). Unpack crypt.c and crypt.h from the
- zcrypt archive, overwriting the dummy versions supplied with UnZip. If
- you don't have any sort of unzipper available, you'll have to compile the
- non-crypt version first and use that to unpack the full crypt sources,
- then recompile.
- (2) Choose the appropriate makefile based on the description in the Con-
- tents file for your OS (that is, there's only one for Unix or OS/2, but
- MS-DOS and several other OSes have several, depending on the compiler).
- Copy it into the current directory and rename if necessary or desired.
- (Some makefiles can be invoked in place; see (5) below.)
- Don't be afraid to read the makefile! Many options will be explained only
- in the comments contained therein. The defaults may not quite suit your
- system. When making changes, remember that some "make" utilities expect
- tabs as part of the makefile syntax. Failure with cryptic error messages
- will result if your editor quietly replaces those tabs with spaces.
- Special point of confusion: some non-MSDOS makefiles contain MS-DOS
- targets (useful for cross-compilations). An example is the OS/2 makefile
- os2/makefile.os2 that contains the gccdos target for DOS emx+gcc and
- some more DOS related targets for Watcom C and MSC. But since version 5.3,
- the msdos subdirectory contains makefiles for all supported DOS compilers.
- [The old djgpp, djgpp1 and gcc_dos targets in unix/Makefile have been
- removed in 5.3; use msdos/makefile.dj* instead.]
- Extra-special point of confusion: makefile.os2 expects to remain in
- the os2 subdirectory. Invoke it via "nmake -f os2/makefile.os2 gcc",
- for example.
- (3) If you want a non-standard version of UnZip, define one or more of the
- following optional macros, either by adding them to the LOCAL_UNZIP
- environment variable or by editing your makefile as appropriate. The
- syntax differs from compiler to compiler, but macros are often defined
- via "-DMACRO_NAME" or similar (for one called MACRO_NAME). Note that
- some of these may not be fully supported in future releases (or even
- in the current release). Note also that very short command lines in
- MS-DOS (128 characters) may place severe limits on how many of these
- can be used; if need be, the definitions can be placed at the top of
- unzip.h instead (it is included in all source files)--for example,
- "#define MACRO_NAME", one macro per line.
- DOSWILD (MS-DOS only)
- Treat trailing "*.*" like Unix "*" (i.e., matches anything); treat
- trailing "*." as match for files without a dot (i.e., matches any-
- thing, as long as no dots in name). Special treatment only occurs
- if patterns are at end of arguments; i.e., "a*.*" matches all files
- starting with "a", but "*.*c" matches all files ending in "c" *only*
- if they have a dot somewhere before the "c". [The default method of
- specifying files without a dot would be "* -x *.*", making use of
- UnZip's exclude-files option.] The matching is actually the same as
- Unix, if you assume that undotted filenames really have an invisible
- dot at the end, which is how DOS and related systems treat filenames
- in general. All other regular expressions (including "?" and
- "[range_of_chars]") retain their Unix-like behavior.
- VMSWILD (VMS only)
- Use parentheses rather than brackets to delimit sets (ranges), and
- use '%' instead of '?' as the single-character wildcard for internal
- filename matching. (External matching of zipfile names always uses
- the standard VMS wildcard facilities; character sets are disallowed.)
- VMSCLI (VMS only)
- Use VMS-style "slash options" (/FOOBAR) instead of the default Unix-
- style hyphenated options (-f). This capability does not affect options
- stored in environment variables (UNZIP_OPTS or ZIPINFO_OPTS); those use
- the Unix style regardless. Beginning with UnZip 5.32, the supplied
- VMS Makefiles and make procedures generate both VMS-style and default
- "UNIX style" executables; you should NOT add VMSCLI to the custom
- options.
- CHECK_VERSIONS (VMS only)
- UnZip "extra fields" are used to store VMS (RMS) filesystem info,
- and the format of this information may differ in various versions
- of VMS. Defining this option will enable UnZip warnings when the
- stored extra-field VMS version(s) do(es) not match the version of
- VMS currently being used. This is a common occurrence in zipfiles
- received from other sites, but since the format of the filesystem
- does not seem to have changed in years (including on Alpha and Open-
- VMS systems), the warnings are not enabled by default.
- RETURN_CODES (VMS only)
- VMS interprets return codes according to a rigid set of guidelines,
- which means it misinterprets normal UnZip return codes as all sorts
- of really nasty errors. Therefore VMS UnZip returns an alternate set
- of return codes; since these may be difficult to interpret, define
- RETURN_CODES for human-readable explanations.
- VMS_TEXT_CONV (everybody except VMS)
- VMS text files archived with the "-V" option are only semi-readable at
- best when extracted on other systems. Defining this option enables
- UnZip's -aa option to attempt to convert such files to native text
- format. Non-VMS UnZips don't actually detect the precise VMS format
- of the files, however, but instead rely on some reasonably good
- heuristics (i.e., guesses). Therefore this option is not enabled by
- default, but it can be extremely useful on those rare occasions when
- a VMS text file must be extracted as normal text.
- USE_VFAT (MS-DOS only, for using same executable under DOS and Win95/NT)
- djgpp 2.x and emx/gcc+RSX 5.1 can detect when they are running under a
- Win32 DOS box and will accordingly enable long-filename support. For
- now only djgpp 2.x and emx/gcc with RSX 5.1 or later have this feature
- (and it is defined by default in msdos/makefile.dj2 and makefile.emx),
- but if/when other compilers build in similar support, define this
- macro to enable its use. See also msdos/doscfg.h. [Note that djgpp
- 2.0's LFN support is flaky; users should upgrade to 2.01 or later.]
- NOTIMESTAMP
- This option disables the -T option, which basically does exactly what
- Zip's -go options do (i.e., set the timestamp of the zipfile to that of
- the newest file in the archive without rewriting the archive). Unlike
- Zip, however, UnZip supports wildcard specifications for the archive
- name; for example, "unzip -T *.zip" will set the dates of all zipfiles
- in the current directory. (UnZip's option is also much faster.)
- DATE_FORMAT=DF_DMY or DF_MDY or DF_YMD
- This option controls the order in which date components are printed
- in listings: day-month-year or month-day-year or year-month-day.
- For DOS derivatives the format is automatically obtained from the
- operating system; most others default to DF_MDY.
- ACORN_FTYPE_NFS (currently, Unix only)
- This option enables a -F option that instructs UnZip to interpret the
- filetype information extracted from Acorn RiscOS extra field blocks.
- The filetype IDs are translated into "NFS filetype extensions" and
- appended to the names of the extracted files. This feature facilitates
- maintance of Unix-based NFS volumes that are exported to Acorn RiscOS
- systems.
- QLZIP (Unix only)
- Add some support for QDOS extra fields. This option enables Unix
- UnZip to append "datalen info" to QDOS exec type files in the same
- format as used by QDOS cross-compilers on Unix or the qltools v2.2(+).
- UNIXBACKUP (Unix only)
- This option enables a -B option that instructs UnZip to rename files
- that would normally be overwritten. The renamed files are given a
- tilde suffix (`~'). Note that previously renamed files may be over-
- written without notice, even if the -n option is given.
- OS2_EAS
- List the sizes of OS/2 EAs and ACLs for each file as two extra columns
- in "unzip -l" output. This is primarily useful for OS/2 systems, but
- because zipfiles are portable, OS2_EAS can be defined for any system.
- (May be extended someday to show sizes of Mac resource forks, RISCOS
- and VMS file info, etc.)
- DELETE_IF_FULL (anybody with unlink() function)
- If a write error is encountered (most likely due to a full disk),
- enabling this option will cause the incomplete file to be deleted
- instead of closed normally. This is particularly useful for the
- Windows CE port, which must generally contend with extremely limited
- resources.
- ASM_CRC (Amiga/Aztec C; many x86 systems: DOS, OS/2, Win32, Unix)
- Use an assembler routine to calculate the CRC for each file (speed).
- ASM_INFLATECODES (Amiga/Aztec C only, for now)
- Use an assembler version of inflate_codes() for speed.
- OLD_EXDIR
- No longer supported.
- SFX_EXDIR
- Enable the "-d <extract_dir>" option for UnZipSFX. By default it is
- disabled so as to generate the smallest possible executable stub, but
- for use with automated installation scripts and the like it may be
- useful to enable -d.
- NO_ZIPINFO
- Compile without ZipInfo mode (-Z) enabled; makes a smaller executable
- because many text strings are left out. Automatically enabled for
- some small-model compiles under MS-DOS and OS/2, so ordinarily there
- is no need to specify this explicitly. (Note that even with this
- defined, the resulting executable may still be too big to extract
- some zipfiles correctly, if compiled with the small memory model.)
- LZW_CLEAN (now default)
- USE_UNSHRINK
- The "shrinking" algorithm from PKZIP 1.0 is an LZW variant. Unisys
- patented the Lempel-Ziv-Welch algorithm in 1985 and has publicly
- claimed that decompression is covered by it. (IBM also patented the
- same thing in a filing 3 weeks prior to Unisys's.) Therefore un-
- shrinking is disabled by default, but those with LZW licenses can
- enable it by defining USE_UNSHRINK. (Unshrinking was used by PKZIP
- 1.0 and 1.1, and Zip 1.0 and 1.1. All newer archives use only the
- deflation method.)
- COPYRIGHT_CLEAN (now default)
- USE_SMITH_CODE
- The last chunk of code in UnZip that was blatantly derived from Sam
- Smith's unzip 2.0 (as in, "substantially similar") is in unreduce.c.
- Since reducing was only used by very early PKZIP beta versions (0.9x),
- support for it is now omitted by default (COPYRIGHT_CLEAN). To in-
- clude unreducing capability, define USE_SMITH_CODE. Note that this
- subjects UnZip to any and all restrictions in Smith's copyright; see
- the UnZip COPYING file for details.
- PASSWD_FROM_STDIN (with full crypt sources only; Unix, VMS only)
- Used to allow the password on encrypted files to be read from stdin
- rather than the default stderr. This was useful for those who wished
- to automate the testing or decoding of encrypted archives (say, in a
- shell script via ``echo "password" | unzip -tq archive''), but as of
- version 5.3, UnZip has a -P option for passing a password directly to
- the program. PASSWD_FROM_STDIN will therefore probably be phased out
- in future versions. Note that the same security warnings given in the
- description of the -P option apply here as well.
- DEBUG
- Used for debugging purposes; enables Trace() statements. Generally
- it's best to compile only one or two modules this way.
- DEBUG_TIME
- Used for debugging the timezone code in fileio.c; enables TTrace()
- statements. This code is only used for the freshen/update options
- (-f and -u), and non-Unix compilers often get it wrong.
- (4) If you regularly compile new versions of UnZip and always want the same
- non-standard option(s), you may wish to add it (them) to the LOCAL_UNZIP
- environment variable (assuming it's supported in your makefile). Under
- MS-DOS, for example, add this to AUTOEXEC.BAT:
- set LOCAL_UNZIP=-DDOSWILD -DDATE_FORMAT=DF_DMY
- You can also use the variable to hold special compiler options (e.g.,
- -FPi87 for Microsoft C, if the x87 libraries are the only ones on your
- disk and they follow Microsoft's default naming conventions; MSC also
- supports the CL environment variable, however).
- (5) Run the make utility on your chosen makefile:
- Unix
- For most systems it's possible to invoke the makefile in place, at
- the possible cost of an ignorable warning; do "make -f unix/Makefile
- list" to get a list of possible system targets, and then "make -f
- unix/Makefile target" for your chosen target. The "generic" target
- works for most systems, but if it fails with a message about ftime()
- unresolved or timezone redefined, do "make clean", "make help", and
- then either "make generic2" or "make generic3" as instructed. If all
- else fails, read the makefile itself; it contains numerous comments.
- (One of these days we'll make a configure script that automates this
- procedure better.)
- VMS
- For a one-time build of the default UnZip, simply run the supplied
- command file MAKE_UNZ.COM. To use either DEC C on an Alpha or the
- default compiler (DEC C if available, else VAX C) on a VAX, type
- "@make_unz" (after copying make_unz.com into the current directory;
- otherwise do "@[.vms]make_unz" to invoke it in place).
- If you want to force the use of VAX C when both VAX C and DEC C are
- available, do "@make_unz vaxc" (or "@[.vms]make_unz vaxc").
- To use GNU C (gcc) on either platform, do "@make_unz gnuc".
- (NOTE: Currently, gcc for VMS(AXP) is not yet available!)
- The command procedure MAKE_UNZ.COM now recognizes custom feature
- options supplied in the logical name LOCAL_UNZIP; details are
- explained in the comments at the top of MAKE_UNZ.COM.
- For repeated makes or other hacker-like tinkering with the sources,
- or to create a custom version of UnZip, you may use the included "MMS"
- makefile, DESCRIP.MMS. Copy it into the current directory, read the
- comments at the top of it and run MadGoat's free MMS clone "MMK" on it.
- Newer versions of DEC's MMS should work, too, but older ones apparently
- choke on some MMK-specific extensions in DESCRIP.MMS. (If somebody
- has an "older" version that works, let us know and we'll remove this
- caveat.)
- MS-DOS
- See the msdosContents file for notes regarding which makefile(s) to
- use with which compiler. In summary: pick one of msdosmakefile.*
- as appropriate, or (as noted above) use the OS/2 gccdos target for
- emx+gcc. There is also an mscdos cross-compilation target in
- os2makefile.os2 and a sco_dos cross-compilation target in the Unix
- makefile. For Watcom 16-bit or 32-bit versions, see the comments in
- the OS/2 section below.
- After choosing the appropriate makefile and editing as necessary or
- desired, invoke the corresponding make utility. Microsoft's NMAKE
- and the free dmake and GNU make utilities are generally the most
- versatile. The makefiles in the msdos directory can be invoked in
- place ("nmake -f msdosmakefile.msc", for example).
- OS/2
- Either GNU make, nmake or dmake may be used with the OS/2 makefile;
- all are freely available on the net. Do "nmake -f os2makefile.os2",
- for example, to get a list of supported targets. More generally,
- read the comments at the top of the makefile for an explanation of
- the differences between some of the same-compiler targets.
- Win32 (WinNT or Win95)
- You will need Microsoft Visual C++ 2.x for Win95 or NT (Intel, MIPS,
- Alpha, PowerPC?), or Watcom C++ for Win95 or NT (Intel only). As an
- alternative for Intel platforms, GNU C (the emx/rsxnt port) is now
- supported as well. DEC C/C++ for NT/Alpha may or may not still work.
- For the Watcom compiler, use WMAKE and win32makefile.wat; for the
- others, use NMAKE and win32Makefile. With emx+gcc, a good choice is
- GNUMake 3.75 from the djgpp V2.01 distribution.
- WinCE (WinCE or WinNT)
- Only Microsoft Visual C++ 5.0 or later is supported. Use the included
- project file and check winceREADME for details.
- AmigaDOS
- SAS/Lattice C and Manx Aztec C are supported. For SAS C 6.x do "smake
- -f amiga/smakefile all"; for Aztec C do "make -f amiga/makefile.azt
- all". The Aztec C version supports assembly-language versions of two
- routines; these are enabled by default.
- Atari TOS
- Turbo C is no longer supported; use gcc and the MiNT libraries, and
- do "make". Note that all versions of gcc prior to 2.5.8 have a bug
- affecting 68000-based machines (optimizer adds 68020 instructions).
- See atariREADME for comments on using other compilers.
- Macintosh
- Metrowerks CodeWarrior Pro 4 with Universal Interfaces 3.1 is the only
- currently supported compiler, although the Mac Programmer's Workbench
- (MPW) and Think C were supported at one time and still have some hooks.
- Other Compilers may work too, no compiler specific instructions
- (pragma, header, macros, ...) were used in the code.
- For CodeWarrior Pro 4, un-BinHex the CodeWarrior project file and
- UnZip resource file (using Stuffit Expander or BinHex 4.0 or later),
- then open the project and click on the compile button.
- See ":macos:Contents" for the possible project targets.
- Link order of the standard libraries is very important: Link all
- sources first and all standard libraries last.
- Acorn (RISC OS)
- Extract the files from the archive and place in standard 'Acorn' C
- form (i.e., *.c, *.h and *.s become c.*, h.* and s.*, respectively),
- either using the UNZIP$EXTS environment variable and a pre-built UnZip
- binary, or using Spark[FS] and doing it manually. Then copy the
- Acorn.Makefile to the main UnZip directory and either type 'amu' or
- use the desktop make utility.
- VM/CMS
- Unpack all the files and transfer them with ASCII -> EBCDIC conver-
- sion to an appropriate directory/minidisk/whatever, then execute
- UNZVMC to compile and link all the sources. This may require C/370
- version 2.1 or later and certain `nucleus extensions,' although
- UnZip 5.3 has been reported to compile fine with the `ADCYCLE C/370
- v1.2 compiler.' Note that it will abend without access to the C/370
- runtime library. See the README.CMS file for more details.
- MVS
- Unpack all the files and transfer them to an appropriate PDS with
- ASCII -> EBCDIC conversion enabled, then edit UNZMVSC.JOB as required,
- and execute it to compile and link all the sources. C/370 2.1 or
- later is required. See README.MVS for further details. [This is a
- new port and may need a little more work even to compile.]
- Human68K
- [This is a Japanese machine and OS.] It appears that GNU make and
- gcc are required; presumably just do "gmake -f human68k/Makefile.gcc"
- to build everything. This port has not been tested since the 5.12
- release.
- TOPS-20
- [No longer fully supported due to new, unported features, although
- patches are always accepted.] Unpack all files into the current
- directory only (including those in the zipfile's tops20 directory),
- then use make.mic and "do make".
- BeOS
- You can run the BeOS makefile in place by typing "make -f
- beos/Makefile". In fact, this is how the author tests it.
- Running the appropriate make utility should produce three executables on
- most systems, one for UnZip/ZipInfo, one for UnZipSFX, and one for fUnZip.
- (VMS is one prominent exception: fUnZip makes no sense on it. The Amiga
- produces a fourth executable called MakeSFX, which is necessary because
- Amiga self-extracting archives cannot be created by simple concatenation.
- If necessary the source amiga/makesfx.c can be compiled on other systems.)
- Read any OS-specific README files for notes on setting things up for
- normal use (especially for VMS) and for warnings about known quirks and
- bugs in various compilers (especially for MS-DOS).
- Also note that many OSes require a timezone variable to be set correctly
- (often "TZ"); Unix and VMS generally do so by default, Win95/NT do if set
- up properly, but other OSes generally do not. See the discussion of the
- -f and -u options in the UnZip man page (or unzip.doc). BeOS doesn't
- currently support timezone information at all, but this will probably be
- added soon.
- Then test your new UnZip on a few archives and let us know if there are
- problems (but *please* first make certain that the archives aren't actu-
- ally corrupted and that you didn't make one of the silly mistakes dis-
- cussed in the documentation). If possible, double-check any problems
- with PKUNZIP or with a previous version of UnZip prior to reporting a
- "bug." The zipfile itself may be damaged.
- To install:
- ===========
- Unix
- The default prefix for the installation location is /usr/local (things
- go into the bin and man/man1 subdirectories beneath the prefix), and
- the default man-page extension is "1" (corresponding to man/man1, above).
- To install as per the defaults, do "make install"; otherwise do "make
- prefix=/your/path manext=your_extension install". (For Intel Unix flavors
- where the assembler CRC routines were used [ASM_CRC], use the install_asm
- target instead of the regular install target.) For example, to install
- in your home directory with "l" as the man-page extension (for "local"),
- do "make prefix=$HOME manext=l install". Permissions will be 755 for the
- executables and 644 for the man pages. In general root must perform in-
- stallation into a public directory. Do "rehash" if your shell requires
- it in order to find the new executables.
- VMS
- Install UnZip as foreign symbol by adding this to login.com:
- $ unzip == "$disk:[dir]unzip.exe"
- $ zipinfo == "$disk:[dir]unzip.exe ""-Z"""
- where "disk" and "dir" are the location of the UnZip executable; the "$"
- before the disk name is important, as are the double-double-quotes around
- the -Z. Some people, including the author, prefer a short alias such as
- "ii" instead of "zipinfo"; edit to taste. Optionally also install unzipsfx
- for use with the MAKESFX.COM command file. See vms/README (or [.VMS]README.)
- for details on this and for notes/warnings about zipfiles and UnZip under
- VMS.
- OS/2, MS-DOS, NT, Atari, Amiga
- Move or copy unzip.exe (or unzip.ttp, or UnZip, or whatever) to a direc-
- tory in your path; also possibly copy the UnZip executable to zipinfo.exe
- (or ii.exe), or else create an alias or a batch/command file for ZipInfo
- ("@unzip -Z %1 %2 %3 %4 %5 %6 %7 %8 %9" under MS-DOS). The latter is only
- relevant if NO_ZIPINFO was *not* defined, obviously... Under djgpp 2.x,
- zipinfo.exe is a 2K stub symbolically linked to unzip.exe.
- Acorn RISC OS
- Copy the executables unzip, funzip and zipinfo to somewhere in your
- Run$Path. See your Welcome manual if you don't know about Run$Path.
- BeOS
- The default prefix for the installation location is /boot/usr/local
- (things go into the bin and man/man1 subdirectories beneath the prefix),
- and the default man-page extension is "1" (corresponding to the man/man1,
- above). Of course, these Unix man-pages aren't useful until someone ports
- something that can format them... plain text versions are also installed
- with an extension of ".doc". To install, do a "make install", or to
- change the prefix, do "make prefix=/your/path install". For example, to
- install in /boot/bin, do "make prefix=/boot/bin install".
- Macintosh
- MacZip requires at least System 7 and a Macintosh with a minimum of a
- Motorola 68020 or PowerPC 601 processor. Other configurations may work
- but it is not tested at all.
- The application (MacZip) is distributed as a combination of zip and unzip
- in one program. The offical release is a fat binary with both regular 68K
- and native PowerPC versions included.
- Move the executable(s) somewhere--for example, drag it (or them) to your
- Applications folder. For easy access, make an alias in the Launcher Control
- Panel or directly on your desktop.
- This port supports also Apple-event.So you can install it in your
- WWW-Browser as a helper-app.
- Look into ":macos:README.TXT" for further info.
- Human68K, TOPS-20, AOS/VS, MVS, VM/CMS, etc.
- Dunno, sorry...