D-BUS is a simple IPC library based on messages. Configuration flags === These are the configuration flags that can be given to the ./configure program. --enable-qt enable Qt-friendly client library --enable-glib enable GLib-friendly client library --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-gcov compile with coverage profiling instrumentation (gcc only) Environment variables === These are the environment variables that are used by the D-BUS client library DBUS_VERBOSE=1 Turns on printing verbose messages. This only works if D-BUS has been compiled with --enable-verbose-mode DBUS_MALLOC_FAIL_NTH=n Can be set to a number, causing every nth call to dbus_alloc or dbus_realloc to fail. This only works if D-BUS has been compiled with --enable-tests. DBUS_MALLOC_FAIL_GREATER_THAN=n Can be set to a number, causing every call to dbus_alloc or dbus_realloc to fail if the number of bytes to be allocated is greater than the specified number. This only works if D-BUS has been compiled with --enable-tests. Tests === These are the test programs that are built if dbus is compiled using --enable-tests. dbus/dbus-test This is the main unit test program that tests all aspects of the D-BUS client library. test/break-loader A test that tries to break the message loader by passing it invalid messages. test/bus-test A test that simulates a bus daemon and tests it.