139 lines
5.7 KiB
Text
Executable file
139 lines
5.7 KiB
Text
Executable file
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Expat, Release 2.1.0
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This is Expat, a C library for parsing XML, written by James Clark.
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Expat is a stream-oriented XML parser. This means that you register
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handlers with the parser before starting the parse. These handlers
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are called when the parser discovers the associated structures in the
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document being parsed. A start tag is an example of the kind of
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structures for which you may register handlers.
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Windows users should use the expat_win32bin package, which includes
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both precompiled libraries and executables, and source code for
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developers.
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Expat is free software. You may copy, distribute, and modify it under
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the terms of the License contained in the file COPYING distributed
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with this package. This license is the same as the MIT/X Consortium
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license.
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Versions of Expat that have an odd minor version (the middle number in
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the release above), are development releases and should be considered
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as beta software. Releases with even minor version numbers are
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intended to be production grade software.
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If you are building Expat from a check-out from the CVS repository,
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you need to run a script that generates the configure script using the
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GNU autoconf and libtool tools. To do this, you need to have
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autoconf 2.58 or newer. Run the script like this:
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./buildconf.sh
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Once this has been done, follow the same instructions as for building
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from a source distribution.
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To build Expat from a source distribution, you first run the
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configuration shell script in the top level distribution directory:
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./configure
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There are many options which you may provide to configure (which you
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can discover by running configure with the --help option). But the
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one of most interest is the one that sets the installation directory.
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By default, the configure script will set things up to install
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libexpat into /usr/local/lib, expat.h into /usr/local/include, and
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xmlwf into /usr/local/bin. If, for example, you'd prefer to install
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into /home/me/mystuff/lib, /home/me/mystuff/include, and
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/home/me/mystuff/bin, you can tell configure about that with:
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./configure --prefix=/home/me/mystuff
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Another interesting option is to enable 64-bit integer support for
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line and column numbers and the over-all byte index:
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./configure CPPFLAGS=-DXML_LARGE_SIZE
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However, such a modification would be a breaking change to the ABI
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and is therefore not recommended for general use - e.g. as part of
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a Linux distribution - but rather for builds with special requirements.
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After running the configure script, the "make" command will build
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things and "make install" will install things into their proper
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location. Have a look at the "Makefile" to learn about additional
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"make" options. Note that you need to have write permission into
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the directories into which things will be installed.
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If you are interested in building Expat to provide document
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information in UTF-16 encoding rather than the default UTF-8, follow
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these instructions (after having run "make distclean"):
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1. For UTF-16 output as unsigned short (and version/error
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strings as char), run:
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./configure CPPFLAGS=-DXML_UNICODE
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For UTF-16 output as wchar_t (incl. version/error strings),
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run:
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./configure CFLAGS="-g -O2 -fshort-wchar" \
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CPPFLAGS=-DXML_UNICODE_WCHAR_T
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2. Edit the MakeFile, changing:
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LIBRARY = libexpat.la
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to:
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LIBRARY = libexpatw.la
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(Note the additional "w" in the library name.)
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3. Run "make buildlib" (which builds the library only).
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Or, to save step 2, run "make buildlib LIBRARY=libexpatw.la".
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4. Run "make installlib" (which installs the library only).
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Or, if step 2 was omitted, run "make installlib LIBRARY=libexpatw.la".
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Using DESTDIR or INSTALL_ROOT is enabled, with INSTALL_ROOT being the default
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value for DESTDIR, and the rest of the make file using only DESTDIR.
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It works as follows:
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$ make install DESTDIR=/path/to/image
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overrides the in-makefile set DESTDIR, while both
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$ INSTALL_ROOT=/path/to/image make install
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$ make install INSTALL_ROOT=/path/to/image
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use DESTDIR=$(INSTALL_ROOT), even if DESTDIR eventually is defined in the
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environment, because variable-setting priority is
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1) commandline
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2) in-makefile
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3) environment
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Note: This only applies to the Expat library itself, building UTF-16 versions
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of xmlwf and the tests is currently not supported.
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Note for Solaris users: The "ar" command is usually located in
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"/usr/ccs/bin", which is not in the default PATH. You will need to
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add this to your path for the "make" command, and probably also switch
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to GNU make (the "make" found in /usr/ccs/bin does not seem to work
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properly -- appearantly it does not understand .PHONY directives). If
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you're using ksh or bash, use this command to build:
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PATH=/usr/ccs/bin:$PATH make
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When using Expat with a project using autoconf for configuration, you
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can use the probing macro in conftools/expat.m4 to determine how to
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include Expat. See the comments at the top of that file for more
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information.
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A reference manual is available in the file doc/reference.html in this
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distribution.
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The homepage for this project is http://www.libexpat.org/. There
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are links there to connect you to the bug reports page. If you need
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to report a bug when you don't have access to a browser, you may also
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send a bug report by email to expat-bugs@mail.libexpat.org.
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Discussion related to the direction of future expat development takes
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place on expat-discuss@mail.libexpat.org. Archives of this list and
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other Expat-related lists may be found at:
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http://mail.libexpat.org/mailman/listinfo/
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