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dbus-tqt/README

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D-BUS is a simple IPC library based on messages.
See also the file HACKING for notes of interest to developers working on D-BUS.
See http://www.freedesktop.org/software/dbus/ for lots of documentation,
mailing lists, etc.
Note
===
A core concept of the D-BUS implementation is that "libdbus" is
intended to be a low-level API, similar to Xlib. Most programmers are
intended to use the bindings to GLib, Qt, Python, Mono, Java, or
whatever. These bindings have varying levels of completeness.
Configuration flags
===
These are the dbus-specific configuration flags that can be given to
the ./configure program.
--enable-qt enable Qt-friendly client library (note: Qt4)
--enable-qt-debug enable Qt-friendly client library, linked to debug
Qt libraries
--enable-qt3 enable Qt3-friendly client library
--enable-glib enable GLib-friendly client library
--enable-gtk enable GTK-requiring executables
--enable-tests enable unit test code
--enable-ansi enable -ansi -pedantic gcc flags
--enable-verbose-mode support verbose debug mode
--enable-asserts include assertion checks
--enable-checks include sanity checks on public API
--enable-xml-docs build XML documentation (requires xmlto)
--enable-doxygen-docs build DOXYGEN documentation (requires Doxygen)
--enable-gcov compile with coverage profiling instrumentation (gcc only)
--enable-abstract-sockets
use abstract socket namespace (linux only)
--enable-gcj build gcj bindings
--enable-mono build mono bindings
--enable-mono-docs build mono docs
--enable-python build python bindings
--enable-selinux build with SELinux support
--enable-dnotify build with dnotify support (linux only)
--with-qt-moc=<path> moc for Qt
--with-qt3-moc=<path> moc for Qt3
--with-xml=libxml/expat XML library to use
--with-init-scripts=redhat Style of init scripts to install
--with-session-socket-dir=dirname Where to put sockets for the per-login-session message bus
--with-test-socket-dir=dirname Where to put sockets for make check
--with-system-pid-file=pidfile PID file for systemwide daemon
--with-system-socket=filename UNIX domain socket for systemwide daemon
--with-console-auth-dir=dirname directory to check for console ownerhip
--with-dbus-user=<user> User for running the DBUS daemon (messagebus)
--with-gnu-ld assume the C compiler uses GNU ld [default=no]
--with-tags[=TAGS] include additional configurations [automatic]
--with-x use the X Window System
API/ABI Policy
===
D-BUS API/ABI and protocol necessarily remain in flux until we are
sure it will meet the various needs it's intended to meet. This means
we need to see some significant sample usage in the contexts of GNOME,
KDE, desktop applications, and systemwide uses such as print queue
monitoring, hotplug events, or whatever. We need the flexibility to
incorporate feedback from this sample usage.
Once we feel confident in the protocol and the API, we will release a
version 1.0. At that point, the intent is:
- The protocol will never be broken again; any message bus should
work with any client forever. However, extensions are possible
where the protocol is extensible.
- If the library API is modified incompatibly, we will rename it
as in http://ometer.com/parallel.html - in other words,
it will always be possible to compile against and use the older
API, and apps will always get the API they expect.
Until 1.0 is released, feedback that requires API changes may be
incorporated into D-BUS. This may break the API, the ABI, the
protocol, or all three.
To avoid a huge soname, the plan is to increment the soname only
between official stable releases, not with every development snapshot.
Versions numbered 0.x are considered development snapshots.
Until 1.0 is released, you have to define -DDBUS_API_SUBJECT_TO_CHANGE
just as a safety check to be sure everyone is aware of this API/ABI
policy and has the right expectations.
We do need people to test the APIs, so please do use the development
snapshots of D-BUS. They are intended to work and we do actively
address bugs.
However, if you're shipping a commercial binary-only application that
needs to keep running on M future versions of N operating systems, you
might want to include your own copy of D-BUS rather than relying on
the installed copy, for example.