228 lines
6.1 KiB
ReStructuredText
228 lines
6.1 KiB
ReStructuredText
***************
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Getting Started
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***************
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.. highlight:: c
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Compiling and Installing Jansson
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================================
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The Jansson source is available at
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http://www.digip.org/jansson/releases/.
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Unix-like systems (including MinGW)
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-----------------------------------
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Unpack the source tarball and change to the source directory:
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.. parsed-literal::
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bunzip2 -c jansson-|release|.tar.bz2 | tar xf -
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cd jansson-|release|
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The source uses GNU Autotools (autoconf_, automake_, libtool_), so
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compiling and installing is extremely simple::
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./configure
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make
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make check
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make install
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To change the destination directory (``/usr/local`` by default), use
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the ``--prefix=DIR`` argument to ``./configure``. See ``./configure
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--help`` for the list of all possible installation options. (There are
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no options to customize the resulting Jansson binary.)
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The command ``make check`` runs the test suite distributed with
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Jansson. This step is not strictly necessary, but it may find possible
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problems that Jansson has on your platform. If any problems are found,
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please report them.
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If you obtained the source from a Git repository (or any other source
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control system), there's no ``./configure`` script as it's not kept in
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version control. To create the script, the build system needs to be
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bootstrapped. There are many ways to do this, but the easiest one is
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to use ``autoreconf``::
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autoreconf -vi
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This command creates the ``./configure`` script, which can then be
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used as described above.
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.. _autoconf: http://www.gnu.org/software/autoconf/
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.. _automake: http://www.gnu.org/software/automake/
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.. _libtool: http://www.gnu.org/software/libtool/
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.. _build-cmake:
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CMake (various platforms, including Windows)
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--------------------------------------------
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Jansson can be built using CMake_. Create a build directory for an
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out-of-tree build, change to that directory, and run ``cmake`` (or ``ccmake``,
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``cmake-gui``, or similar) to configure the project.
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See the examples below for more detailed information.
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.. note:: In the below examples ``..`` is used as an argument for ``cmake``.
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This is simply the path to the jansson project root directory.
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In the example it is assumed you've created a sub-directory ``build``
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and are using that. You could use any path you want.
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.. _build-cmake-unix:
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Unix (Make files)
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^^^^^^^^^^^^^^^^^
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Generating make files on unix:
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.. parsed-literal::
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bunzip2 -c jansson-|release|.tar.bz2 | tar xf -
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cd jansson-|release|
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mkdir build
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cd build
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cmake .. # or `ccmake ..` for a GUI.
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Then to build::
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make
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make check
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make install
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Windows (Visual Studio)
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^^^^^^^^^^^^^^^^^^^^^^^
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Creating Visual Studio project files from the command line:
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.. parsed-literal::
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<unpack>
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cd jansson-|release|
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md build
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cd build
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cmake -G "Visual Studio 10" ..
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You will now have a *Visual Studio Solution* in your build directory.
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To run the unit tests build the ``RUN_TESTS`` project.
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If you prefer a GUI the ``cmake`` line in the above example can
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be replaced with::
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cmake-gui ..
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For command line help (including a list of available generators)
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for CMake_ simply run::
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cmake
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To list available CMake_ settings (and what they are currently set to)
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for the project, run::
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cmake -LH ..
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Mac OSX (Xcode)
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^^^^^^^^^^^^^^^
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If you prefer using Xcode instead of make files on OSX,
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do the following. (Use the same steps as
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for :ref:`Unix <build-cmake-unix>`)::
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...
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cmake -G "Xcode" ..
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Additional CMake settings
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^^^^^^^^^^^^^^^^^^^^^^^^^
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Shared library
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""""""""""""""
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By default the CMake_ project will generate build files for building the
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static library. To build the shared version use::
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...
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cmake -DBUILD_SHARED=1 ..
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Changing install directory (same as autoconf --prefix)
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""""""""""""""""""""""""""""""""""""""""""""""""""""""
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Just as with the autoconf_ project you can change the destination directory
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for ``make install``. The equivalent for autoconfs ``./configure --prefix``
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in CMake_ is::
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...
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cmake -DCMAKE_INSTALL_PREFIX:PATH=/some/other/path ..
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make install
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.. _CMake: http://www.cmake.org
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Android
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-------
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Jansson can be built for Android platforms. Android.mk is in the
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source root directory. The configuration header file is located in the
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``android`` directory in the source distribution.
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Other Systems
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-------------
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On non Unix-like systems, you may be unable to run the ``./configure``
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script. In this case, follow these steps. All the files mentioned can
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be found in the ``src/`` directory.
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1. Create ``jansson_config.h`` (which has some platform-specific
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parameters that are normally filled in by the ``./configure``
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script). Edit ``jansson_config.h.in``, replacing all ``@variable@``
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placeholders, and rename the file to ``jansson_config.h``.
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2. Make ``jansson.h`` and ``jansson_config.h`` available to the
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compiler, so that they can be found when compiling programs that
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use Jansson.
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3. Compile all the ``.c`` files (in the ``src/`` directory) into a
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library file. Make the library available to the compiler, as in
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step 2.
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Building the Documentation
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--------------------------
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(This subsection describes how to build the HTML documentation you are
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currently reading, so it can be safely skipped.)
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Documentation is in the ``doc/`` subdirectory. It's written in
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reStructuredText_ with Sphinx_ annotations. To generate the HTML
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documentation, invoke::
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make html
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and point your browser to ``doc/_build/html/index.html``. Sphinx_ 1.0
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or newer is required to generate the documentation.
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.. _reStructuredText: http://docutils.sourceforge.net/rst.html
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.. _Sphinx: http://sphinx.pocoo.org/
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Compiling Programs that Use Jansson
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===================================
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Jansson involves one C header file, :file:`jansson.h`, so it's enough
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to put the line
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::
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#include <jansson.h>
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in the beginning of every source file that uses Jansson.
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There's also just one library to link with, ``libjansson``. Compile and
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link the program as follows::
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cc -o prog prog.c -ljansson
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Starting from version 1.2, there's also support for pkg-config_::
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cc -o prog prog.c `pkg-config --cflags --libs jansson`
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.. _pkg-config: http://pkg-config.freedesktop.org/
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