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  1.  
  2.                         Expat, Release 2.1.0
  3.  
  4. This is Expat, a C library for parsing XML, written by James Clark.
  5. Expat is a stream-oriented XML parser.  This means that you register
  6. handlers with the parser before starting the parse.  These handlers
  7. are called when the parser discovers the associated structures in the
  8. document being parsed.  A start tag is an example of the kind of
  9. structures for which you may register handlers.
  10.  
  11. Windows users should use the expat_win32bin package, which includes
  12. both precompiled libraries and executables, and source code for
  13. developers.
  14.  
  15. Expat is free software.  You may copy, distribute, and modify it under
  16. the terms of the License contained in the file COPYING distributed
  17. with this package.  This license is the same as the MIT/X Consortium
  18. license.
  19.  
  20. Versions of Expat that have an odd minor version (the middle number in
  21. the release above), are development releases and should be considered
  22. as beta software.  Releases with even minor version numbers are
  23. intended to be production grade software.
  24.  
  25. If you are building Expat from a check-out from the CVS repository,
  26. you need to run a script that generates the configure script using the
  27. GNU autoconf and libtool tools.  To do this, you need to have
  28. autoconf 2.58 or newer. Run the script like this:
  29.  
  30.         ./buildconf.sh
  31.  
  32. Once this has been done, follow the same instructions as for building
  33. from a source distribution.
  34.  
  35. To build Expat from a source distribution, you first run the
  36. configuration shell script in the top level distribution directory:
  37.  
  38.         ./configure
  39.  
  40. There are many options which you may provide to configure (which you
  41. can discover by running configure with the --help option).  But the
  42. one of most interest is the one that sets the installation directory.
  43. By default, the configure script will set things up to install
  44. libexpat into /usr/local/lib, expat.h into /usr/local/include, and
  45. xmlwf into /usr/local/bin.  If, for example, you'd prefer to install
  46. into /home/me/mystuff/lib, /home/me/mystuff/include, and
  47. /home/me/mystuff/bin, you can tell configure about that with:
  48.  
  49.         ./configure --prefix=/home/me/mystuff
  50.        
  51. Another interesting option is to enable 64-bit integer support for
  52. line and column numbers and the over-all byte index:
  53.  
  54.         ./configure CPPFLAGS=-DXML_LARGE_SIZE
  55.        
  56. However, such a modification would be a breaking change to the ABI
  57. and is therefore not recommended for general use - e.g. as part of
  58. a Linux distribution - but rather for builds with special requirements.
  59.  
  60. After running the configure script, the "make" command will build
  61. things and "make install" will install things into their proper
  62. location.  Have a look at the "Makefile" to learn about additional
  63. "make" options.  Note that you need to have write permission into
  64. the directories into which things will be installed.
  65.  
  66. If you are interested in building Expat to provide document
  67. information in UTF-16 encoding rather than the default UTF-8, follow
  68. these instructions (after having run "make distclean"):
  69.  
  70.         1. For UTF-16 output as unsigned short (and version/error
  71.            strings as char), run:
  72.  
  73.                ./configure CPPFLAGS=-DXML_UNICODE
  74.  
  75.            For UTF-16 output as wchar_t (incl. version/error strings),
  76.            run:
  77.  
  78.                ./configure CFLAGS="-g -O2 -fshort-wchar" \
  79.                            CPPFLAGS=-DXML_UNICODE_WCHAR_T
  80.  
  81.         2. Edit the MakeFile, changing:
  82.  
  83.                LIBRARY = libexpat.la
  84.  
  85.            to:
  86.  
  87.                LIBRARY = libexpatw.la
  88.  
  89.            (Note the additional "w" in the library name.)
  90.  
  91.         3. Run "make buildlib" (which builds the library only).
  92.            Or, to save step 2, run "make buildlib LIBRARY=libexpatw.la".
  93.  
  94.         4. Run "make installlib" (which installs the library only).
  95.            Or, if step 2 was omitted, run "make installlib LIBRARY=libexpatw.la".
  96.            
  97. Using DESTDIR or INSTALL_ROOT is enabled, with INSTALL_ROOT being the default
  98. value for DESTDIR, and the rest of the make file using only DESTDIR.
  99. It works as follows:
  100.    $ make install DESTDIR=/path/to/image
  101. overrides the in-makefile set DESTDIR, while both
  102.    $ INSTALL_ROOT=/path/to/image make install
  103.    $ make install INSTALL_ROOT=/path/to/image
  104. use DESTDIR=$(INSTALL_ROOT), even if DESTDIR eventually is defined in the
  105. environment, because variable-setting priority is
  106. 1) commandline
  107. 2) in-makefile
  108. 3) environment  
  109.  
  110. Note: This only applies to the Expat library itself, building UTF-16 versions
  111. of xmlwf and the tests is currently not supported.        
  112.  
  113. Note for Solaris users:  The "ar" command is usually located in
  114. "/usr/ccs/bin", which is not in the default PATH.  You will need to
  115. add this to your path for the "make" command, and probably also switch
  116. to GNU make (the "make" found in /usr/ccs/bin does not seem to work
  117. properly -- appearantly it does not understand .PHONY directives).  If
  118. you're using ksh or bash, use this command to build:
  119.  
  120.         PATH=/usr/ccs/bin:$PATH make
  121.  
  122. When using Expat with a project using autoconf for configuration, you
  123. can use the probing macro in conftools/expat.m4 to determine how to
  124. include Expat.  See the comments at the top of that file for more
  125. information.
  126.  
  127. A reference manual is available in the file doc/reference.html in this
  128. distribution.
  129.  
  130. The homepage for this project is http://www.libexpat.org/.  There
  131. are links there to connect you to the bug reports page.  If you need
  132. to report a bug when you don't have access to a browser, you may also
  133. send a bug report by email to expat-bugs@mail.libexpat.org.
  134.  
  135. Discussion related to the direction of future expat development takes
  136. place on expat-discuss@mail.libexpat.org.  Archives of this list and
  137. other Expat-related lists may be found at:
  138.  
  139.         http://mail.libexpat.org/mailman/listinfo/
  140.