| Build Instructions |

| Build instructions are provided for the following platforms and compilers:

- UNIX/Linux/Mac OS X/Cygwin/MinGW
- Windows using Microsoft Visual C++
- Windows using Borland C++

| Building on UNIX/Linux/Mac OS X/Cygwin/MinGW platforms |

| For building on UNIX and UNIX-like (GNU/Linux, Max OS X, Cygwin, MinGW-MSYS) platforms Xerces-C++ uses the GNU automake-based build systems and requires that you have GNU make installed. On some platforms GNU make is called gmake instead of make.

As with all automake-based projects the build process is divided into two parts: configuration and building. The configuration part is performed using the `configure` script that can be found in the `xerces-c-3.1.2` directory. The build part is performed by invoking `make`.

Besides the standard `configure` options which you can view by running `configure --help`, Xerces-C++ provides a number of project-specific options that are worth mentioning. You can specify one option for each category outlined below. If you do not specify anything for a particular category then `configure` will select the most appropriate default. At the end of its execution `configure` prints the selected values for each category.

Net Accessor (used to access network resources):

Option | Description
`--enable-netaccessor-curl` | use the libcurl library
`--enable-netaccessor-socket` | use plain sockets
`--enable-netaccessor-cfurl` | use the CFURL API (only on Mac OS X)
`--enable-netaccessor-winsock` | use WinSock (only on Windows, Cygwin, MinGW)
`--disable-network` | disable network support

Transcoder (used to convert between internal UTF-16 and other encodings):

Option | Description
`--enable-transcoder-gnuiconv` | use the GNU iconv library
`--enable-transcoder-iconv` | use the iconv library
`--enable-transcoder-icu` | use the ICU library
`--enable-transcoder-macosunicodeconverter` | use Mac OS X APIs (only on Mac OS X)
`--enable-transcoder-windows` | use Windows APIs (only on Windows, Cygwin, MinGW)

Message Loader (used to access diagnostics messages):

Option | Description
`--enable-msgloader-inmemory` | store the messages in memory
`--enable-msgloader-icu` | store the messages using the ICU resource bundles
`--enable-msgloader-iconv` | store the messages in the iconv message catalog

Thread support is enabled by default and can be disabled with the `--disable-threads` option.

By default `configure` selects both shared and static libraries. You can use the `--disable-shared` and `--disable-static` options to avoid building the version you don't need.

Finally, to make the build process cleaner the Xerces-C++ build system hides actual compiler commands being executed by `make`. If you would like to see those then you can specify the `--disable-pretty-make` option.

If you need to specify compiler executables that should be used to build Xerces-C++, you can set the CC and CXX variables when invoking `configure`. Similarly, if you need to specify additional compiler or linker options, you can set the CFLAGS, CXXFLAGS, and LDFLAGS variables. For example:

    ./configure --disable-static CC=gcc-4.3 CXX=g++-4.3 CFLAGS=-O3 CXXFLAGS=-O3

Once the configuration part is complete you can run `make` (or `gmake`). Running `make` from the `xerces-c-3.1.2` directory builds Xerces-C++ library and examples. The library is placed into the `src/.libs` directory. If you like to build only the library, you can run make from `xerces-c-3.1.2/src`.

If you would like to build the tests and run the automated test suite, run `make check` from the `xerces-c-3.1.2` directory. The automated test suite required Perl and the `diff` command.

Finally, to install the library and examples you can run `make install` (or `gmake install`). To change the installation directory, use the `--prefix` `configure` option.

Some platforms and configurations require extra `configure` and `make` options which are shown in the following table.

Platform | Compiler | Options
Solaris x86 | Sun CC | `./configure CXX=CC CC=cc`
Solaris x86-64 | Sun CC | `./configure CXX=CC CC=cc CFLAGS=-xarch=amd64 CXXFLAGS=-xarch=amd64` (for newer Sun CC versions use -m64 instead of -xarch=amd64)
Solaris SPARC | Sun CC | `./configure CXX=CC CC=cc`
Solaris SPARCv9 | Sun CC | `./configure CXX=CC CC=cc CFLAGS=-xarch=v9 CXXFLAGS=-xarch=v9` (for newer Sun CC versions use -m64 instead of -xarch=v9)
AIX PowerPC | IBM XL C++ | `./configure CXX=xlC_r CC=xlc_r` `gmake libxerces_c_la_LDFLAGS=-qmkshrobj`
AIX PowerPC-64 | IBM XL C++ | `export OBJECT_MODE=64` `./configure CXX=xlC_r CC=xlc_r CXXFLAGS=-q64 CFLAGS=-q64` `gmake libxerces_c_la_LDFLAGS=-qmkshrobj`
HP-UX IA-64-32 | HP aCC | `./configure CXX=aCC CC=aCC CFLAGS=-mt CXXFLAGS=-mt LDFLAGS=-mt`
HP-UX IA-64 | HP aCC | `./configure CXX=aCC CC=aCC CFLAGS="-mt +DD64" CXXFLAGS="-mt +DD64" LDFLAGS="-mt +DD64"`
Mac OS X x86-64 | GCC | `./configure CFLAGS="-arch x86_64" CXXFLAGS="-arch x86_64"`
Mac OS X PowerPC-64 | GCC | `./configure CFLAGS="-arch ppc64" CXXFLAGS="-arch ppc64"`
Mac OS X x86/PowerPC | GCC | `./configure --disable-dependency-tracking CFLAGS="-arch i386 -arch ppc" CXXFLAGS="-arch i386 -arch ppc"`
Mingw x86 | GCC | `./configure LDFLAGS=-no-undefined`
Cygwin x86 | GCC | `./configure LDFLAGS=-no-undefined`

| Note that different UNIX platforms use different system environment variable for finding shared libraries. On Linux and Solaris, the environment variable name is `LD_LIBRARY_PATH`, on AIX it is `LIBPATH`, on Mac OS X it is `DYLD_LIBRARY_PATH`, and on HP-UX it is `SHLIB_PATH`.

| Note that Cygwin and MinGW are different from the UNIX platforms in the way they find shared libraries at run time. While UNIX platforms may use the `LD_LIBRARY_PATH` environment variable, Cygwin and MinGW use the `PATH` environment variable.

| Building on Windows using Microsoft Visual C++ |

| Xerces-C++ source distribution comes with Microsoft Visual C++ projects and solutions. The following describes the steps you need to build with this compiler. To build Xerces-C++ from the source distribution you will need to open the solution containing the project. The solutions containing the Xerces-C++ project files are in the following sub-directories in the `xerces-c-3.1.2` directory:

    (For VC7.1)  projects\Win32\VC7.1\xerces-all\xerces-all.sln
    (For VC8.0)  projects\Win32\VC8\xerces-all\xerces-all.sln
    (For VC9.0)  projects\Win32\VC9\xerces-all\xerces-all.sln
    (For VC10.0) projects\Win32\VC10\xerces-all\xerces-all.sln
    (For VC11.0) projects\Win32\VC11\xerces-all\xerces-all.sln
    (For VC12.0) projects\Win32\VC12\xerces-all\xerces-all.sln

Once you have the solution open, you need to build the project named `XercesLib`. You can select Debug/Release, Static/DLL, and, for VC8+, 32/64 bit builds using the Configuration Manager dialog. You can also select whether the Xerces-C++ library should use ICU for transcoding.

When building your own applications you need to make sure that you are linking your application with the xerces-c_3.lib (Release) and/or xerces-c_3D.lib (Debug) libraries (or the static versions of them) and also that the associated DLLs are somewhere in the executable/DLL search path (`PATH`).

| If you are linking your application to the static Xerces-C++ library, then you will need to compile your application with the XERCES_STATIC_LIBRARY preprocessor macro defined in order to turn off the DLL import/export mechanism.

If you would also like to build tests and/or samples, inside the solution files mentioned above, you'll find several other projects which are for the tests and samples. Select all the tests/samples that you would like to build and then right click on the selection. Choose "Build (selection only)" to build all the selected projects in one shot.

| Building on Windows using Borland C++ |

| Xerces-C++ source distribution comes with the Borland C++ makefiles. The following describes the steps you need to build Xerces-C++ with this compiler.

1. Change to the `xerces-c-3.1.2\projects\Win32\BCC5\Xerces-all` directory
2. Run `MakeBuildDirs.bat`
3. `make -f Xerces-all.mak` to build the library, examples, and tests.

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