Gaming Linux® From Scratch - Version #154e

Chapter 3. Shared Dependencies

dbus-1.14.10 - Pass 1

Introduction to D-Bus

D-Bus is a message bus system, a simple way for applications to talk to one another. D-Bus supplies both a system daemon (for events such as “new hardware device added” or “printer queue changed”) and a per-user-login-session daemon (for general IPC needs among user applications). Also, the message bus is built on top of a general one-to-one message passing framework, which can be used by any two applications to communicate directly (without going through the message bus daemon).

This is the first pass. A useful program, dbus-launch, will be compiled later, but is not needed now. It depends on Xorg libraries being installed beforehand.

Installation of D-Bus - Pass 1

Install D-Bus by running the following commands (you may wish to review the output from ./configure --help first and add any desired parameters to the configure command shown below): 

./configure --prefix=/usr                        \
            --sysconfdir=/etc                    \
            --localstatedir=/var                 \
            --runstatedir=/run                   \
            --disable-doxygen-docs               \
            --disable-xml-docs                   \
            --disable-static                     \
            --with-systemduserunitdir=no         \
            --with-systemdsystemunitdir=no       \
            --docdir=/usr/share/doc/dbus-1.14.10  \
            --with-system-socket=/run/dbus/system_bus_socket &&

make

Now, as the root user: 

make install

If you are using a DESTDIR install, dbus-daemon-launch-helper needs to be fixed afterwards. Issue, as root user: 

chown -v root:messagebus /usr/libexec/dbus-daemon-launch-helper &&
chmod -v      4750       /usr/libexec/dbus-daemon-launch-helper

Generate the D-Bus UUID to avoid warnings when compiling some packages with the following command as the root user: 

dbus-uuidgen --ensure

If using elogind, create a symlink to the /var/lib/dbus/machine-id file: 

ln -sfv /var/lib/dbus/machine-id /etc

32-bit Installation of D-Bus

[Note]

Note

The program dbus-launch will not need to have a 32-bit version, so this 32-bit compilation will be the first and only needed pass unless you are upgrading D-Bus.

First clean the directory: 

make distclean

Now install lib32-D-Bus by running the following commands: 

CC="gcc -m32" CXX="g++ -m32"                     \
PKG_CONFIG_PATH="/usr/lib32/pkgconfig"           \
./configure --prefix=/usr                        \
            --libdir=/usr/lib32                  \
            --host=i686-pc-linux-gnu             \
            --sysconfdir=/etc                    \
            --localstatedir=/var                 \
            --runstatedir=/run                   \
            --disable-doxygen-docs               \
            --disable-xml-docs                   \
            --disable-static                     \
            --with-systemduserunitdir=no         \
            --with-systemdsystemunitdir=no       \
            --with-system-socket=/run/dbus/system_bus_socket &&

make

Now as the root user: 

make DESTDIR=$PWD/DESTDIR install     &&
cp -vR DESTDIR/usr/lib32/* /usr/lib32 &&
rm -rf DESTDIR                        &&
ldconfig

Command Explanations

--disable-doxygen-docs: This switch disables doxygen documentation build and install, if you have doxygen installed. If doxygen is installed, and you wish to build them, remove this parameter.

--disable-xml-docs: This switch disables html documentation build and install, if you have xmlto installed. If xmlto is installed, and you wish to build them, remove this parameter.

--disable-static: This switch prevents installation of static versions of the libraries.

--with-systemd{user,system}unitdir=no: These switches disable installation of systemd units on elogind based systems.

--with-system-socket=/run/dbus/system_bus_socket: This parameter specifies the location of the system bus socket.

--enable-tests: Builds extra parts of the code to support all tests. Do not use on a production build.

--enable-embedded-tests: Builds extra parts of the code to support only unit tests. Do not use on a production build.

--enable-asserts: Enables debugging code to run assertions for statements normally assumed to be true. This prevents a warning that '--enable-tests' on its own is only useful for profiling and might not give true results for all tests, but adds its own NOTE that this should not be used in a production build.

Contents

See the full list of contents at dbus-1.14.10 - Pass 2.