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Using a Borland compiler product
The files in this directory support using both the free Borland
command-line compiler tools and the Borland C++ Builder IDE. The
project files have been tested with both versions 5 and 6 of the C++
Builder product.
Using the free BCC32 command line compiler
After downloading and installing the free C++ Builder commandline
version, perform the following steps (assuming it was installed under
C:\Borland\BCC55):
1) Add "C:\Borland\BCC55\BIN" to your path
2) Set the environment variable BCB to "C:\Borland\BCC55".
3) edit makefile.mak: enable or comment out the appropriate commands
under clean & distclean, depending on whether your OS can use
deltree /y or del /s/f/q.
After that, you should simply cd to the bcb5 directory in your Expat
directory tree (same structure as CVS) and run "make all".
Naming
The libraries have the base name "libexpat" followed optionally by an
"s" (static) or a "w" (unicode version), then an underscore and
optionally "mt" (multi-threaded) and "d" (dynamic RTL).
To change the name of the library a project file produces, edit the
project option source (see step 1 under Unicode below) and change
the name contained in the PROJECT tag. In a make file, change the
value assigned to the PROJECT variable.
Unicode Considerations
There are no facilities in the BCB 5 GUI to create a unicode-enabled
application. Fortunately, it is not hard to do by hand.
1. The startup .obj system file must be changed to the unicode version.
Go to Project|Edit Option Source, and scroll down to the ALLOBJ tag. Change
c0x32.obj to c0x32w.obj. Editing this file can be quirky, but usually the
following kludge will make the change stick. Close and save the file (CTRL-F4)
then open the options dialog (CTRL-Shift-F11), then click OK on the dialog
immediately without changing anything in it. If this doesn't work, you will
have to close the project completely and edit the .bpr file by hand.
If you are using a make file, just change the startup .obj file assigned
to the ALLOBJ variable.
2. Add the macro define XML_UNICODE_WCHAR_T. In the GUI that goes in the
options dialog, Directories/Conditionals tab, in the Conditional define
box. In a make file, put it in the USERDEFINES variable.
3. Of course, your code has to be written for unicode. As a start, the "main"
function is called "wmain". The tchar macros are an interesting way to
write code that can easily switch between unicode and utf-8. If
these macros are used, then simply adding the conditional define _UNICODE
as well as XML_UNICODE_WCHAR_T will bring in the unicode versions of the
tchar macros. Otherwise the utf-8 versions are used. xmlwf uses its own
hand-rolled versions of the tchar macros which are switched on and off
by the XML_UNICODE macro, which itself is set by the XML_UNICODE_WCHAR_T
define.
Threading
The libexpat libraries are all built with the multi-threaded dynamic RTL's.
To create single-threaded libs, do the following:
1. The compiler option for multi-threading must be turned off. Following the
instructions above to edit the option source, remove the -tWM option from
the CFLAG1 tag. In a make file, remove it from the CFLAG1 variable.
2. The single threaded RTL must be called. change the RTL in the ALLLIB tag or
variable (GUI or makefile repectively) to the version without the "mt" in the
name. For example, change cw32mti.lib to cw32i.lib.
Static RTL's
To build the libs with static RTL's do the following,
1. For the static expatlibs, in the Tlib tab on the options dialog, uncheck the
"Use dynamic RTL" box. For the dynamic expatlibs, in the Linker tab on the options
dialog, uncheck "Use dynamic RTL". If you are using a make file, remove the _RTLDLL
assignment to the SYSDEFINES variable, and change the RTL to the version without an
"i" in the ALLLIB variable. For example, cw32mti.lib would become wc32mt.lib.
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