                              Libwww - the W3C Sample Code Library Installation
   W3ClibwwwINSTALL
   
               LIBWWW - THE W3C SAMPLE CODE LIBRARY INSTALLATION
                                       
        (c) COPYRIGHT MIT 1995.
        Please first read the full copyright statement in the file COPYRIGH.


   These installation instructions are based on the suggested instructions
   provided with GNU Autoconf.
   
   The configure shell script attempts to guess correct values for various
   system-dependent variables used during compilation. It uses those values to
   create a `Makefile' and a `config.h' file containing system-dependent
   definitions. Finally, it creates a shell script `config.status' that you can
   run in the future to recreate the current configuration, a file
   `config.cache' that saves the results of its tests to speed up
   reconfiguring, and a file `config.log' containing compiler output (useful
   mainly for debugging configure).
   
BUILDING ON WINDOWS

   Building on Windows is somewhat different than building on Unix. We
   therefore have a separate set of directions for doing this. We maintain a
   set of Microsoft Visual C make files which can be used directly if you want
   to use this compiler. We do not support help on any type of Windows based
   compiler including msvc, so be warned!
   
      Libwww make file
      
      PICS Library make file
      
      Robot Makefile
      
      Command Line Tool Makefile
      
      Line Mode Browser Makefile
      
   Stop here and jump to the Known Bugs and Patches page to see if you need to
   apply any patches before you compile. You can find some options determining
   how libwww is going to be compiled in the special windows config.h file.
   
  Zlib Support
  
   If HT_ZLIB is defined in the windows config.h file then libwww can use the
   zlib library for handling the deflate content-encoding. This may cause
   better performance as we then can inflate a compressed document on the fly.
   A version of the precompiled zlib DLL for Win32 is already included in the
   w3c-libwww distribution file.
   
      Define HT_ZLIB in windows config.h file
      
      Copy zlib.dll into a location where Windows can find it, for example
      .\Bin\Debug\
      
  Regular Expressions
  
   If HT_POSIX_REGEX is defined in the windows config.h file then libwww can
   use posix compliant regular expressions, for example to handle URI matching.
   This is for example used in the webbot which can handle regular expressions
   when matching which URIs to check. The library has been tested with the GNU
   regular expression library for Win32.
   
      Define HT_POSIX_REGEX in windows config.h file
      
      Copy regex.h into .\Library\External and name it rxposix.h
      
      Add gnu_regex.lib to the robot project (or whatever application you are
      building)
      
      Copy gnu_regex.dll into a location where Windows can find it, for example
      .\Bin\Debug\
      
  Detailed Installation
  
   If you are interested in the details of how we build libwww on windows then
   please continue by reading the special documentation on how to install on
   Windows.
   
BUILDING ON UNIX

   NoteYou probably need the GNU version of make in order to build libwww. The
   reason is that some of the make files contain some syntax that most other
   makefiles don't understand.
   
   The simplest way to compile this package on a Unix platform is:
   
      `cd' to the directory containing the package's source code and type
      `./configure' to configure the package for your system. If you're using
      `csh' on an old version of System V, you might need to type `sh
      ./configure' instead to prevent `csh' from trying to execute configure
      itself. Running configure takes awhile. While running, it prints some
      messages telling which features for which it is checking.
      
      Stop here and jump to the Known Bugs and Patches page to see if you need
      to apply any patches before you compile.
      
      Type `make' to compile the package.
      
      Type `make install' to install the library.
      
      You can remove the library and object files from the source directory by
      typing `make clean.' To also remove the files that configure created (so
      you can compile the package for a different kind of computer), type `make
      distclean.'
      
COMPILERS AND OPTIONS

   Some systems require unusual options for compilation or linking that the
   configure script does not know about. You can give configure initial values
   for variables by setting them in the environment. Using a Bourne-compatible
   shell, you can do that on the command line like this:
   
      CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure


   Or on systems that have the `env' program, you can do it like this:
   
      env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure


USING A DIFFERENT BUILD DIRECTORY

   You can compile the package in a directory different from the one containing
   the source code. Doing so allows you to compile it on more than one kind of
   computer at the same time. To do this, you must use a version of `make' that
   supports the `VPATH' variable, such as GNU `make.' `cd' to the directory
   where you want to object files and library to go and run the configure
   script (i.e., go `../src/configure'). configure automatically checks for
   source code in the directory that configure is in and in `..' as well.
   
INSTALLATION NAMES

   By default, `make install' will install the library in `/usr/local/lib'. You
   can specify an installation prefix other than `/usr/local' by giving
   configure the option `--prefix=PATH'. You can cause the library to be
   installed with an extra prefix or suffix on its name by giving configure the
   options `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
   
OPTIONAL FEATURES AND PACKAGES

   There are a set of options you can give to configure in addition to those
   understood by all GNU Autoconf configure scripts:
   
  --disable-FEATURE      do not include FEATURE (same as --enable-FEATURE=no)
                         
  --enable-FEATURE[=ARG]
                         include FEATURE [ARG=yes]
                         
  --with-PACKAGE[=ARG]   use PACKAGE [ARG=yes]
                         
  --without-PACKAGE      do not use PACKAGE (same as --with-PACKAGE=no)
                         
  --x-includes=DIR       X include files are in DIR
                         
  --x-libraries=DIR      X library files are in DIR
                         
   --enable and --with options recognized:
   
  --with-x               use the X Window System
                         
  --with-wais[=PATH]     Compile with support for direct WAIS access. This is a
                         bit rusty!!!
                         
  --with-zlib[=PATH]     Compile with zlib compress/decompress support.
                         
  --with-regex[=PATH]    Compile with POSIX regex library support.
                         
  --with-socks           Compile with SOCKS firewall traversal support.
                         
  --with-socks5[=PATH]   Compile with SOCKS5 firewall traversal support.
                         
  --with-socks4[=PATH]   Compile with SOCKS4 firewall traversal support.
                         
  --enable-signals       use internal libwww signal handler.
                         
  --disable-nagle        Turning off Nagle's algorithm.
                         
  --disable-pipelining   Turning off HTTP/1.1 Pipelining.
                         
  --enable-reentrant     define _REENTRANT to enable reentrant system calls
                         
  --enable-posix         define _POSIX_SOURCE
                         
  --enable-cyrillic      include support for Cyrillic in line mode browser
                         
SPECIFYING THE SYSTEM TYPE

   There may be some features configure can not figure out automatically, but
   needs to determine by the type of host the package will run on. Usually
   configure can figure that out, but if it prints a message saying it can not
   guess the host type, give it the `--host=TYPE' option. TYPE can either be a
   short name for the system type, such as `sun4', or a canonical name with
   three fields:
   
      CPU-COMPANY-SYSTEM


   See the file `config.sub' for the possible values of each field. If
   `config.sub' isn't included in this package, then this package doesn't need
   to know the host type.
   
   If you are building compiler tools for cross-compiling, you can also use the
   `--target=TYPE' option to select the type of system they will produce code
   for and the `--build=TYPE' option to select the type of system on which you
   are compiling the package.
   
SHARING DEFAULTS

   If you want to set default values for configure scripts to share, you can
   create a site shell script called `config.site' that gives default values
   for variables like `CC', `cache_file', and `prefix'. configure looks for
   `PREFIX/share/config.site' if it exists, then `PREFIX/etc/config.site' if it
   exists. Or, you can set the `CONFIG_SITE' environment variable to the
   location of the site script. A warning: not all configure scripts look for a
   site script.
   
OPERATION CONTROLS

   configure recognizes the following options to control how it operates.
   
  --cache-file=FILE      Save the results of the tests in FILE instead of
                         `config.cache'. Set FILE to `/dev/null' to disable
                         caching, for debugging configure.
                         
  --help                 Print a summary of the options to configure, and exit.
                         
  --quiet, --silent      Do not print messages saying which checks are being
                         made.
                         
  --srcdir=DIR           Look for the package's source code in directory DIR.
                         Usually configure can determine that directory
                         automatically.
                         
  --version              Print the version of Autoconf used to generate the
                         configure script, and exit.
                         
   configure also accepts some other, not widely useful, options.
   
   
   ___________________________________
   
                                                        Henrik Frystyk Nielsen,
                @(#) $Id: INSTALL.html,v 1.11 1998/01/06 21:08:28 frystyk Exp $
                                                                               
   
