En/TDE k3b

From Studiosg
Jump to navigationJump to search

Welcome to Simone Giustetti's wiki pages.

Languages: English - Italiano


TDE - Applications

K3b is one among the most used Linux CD and DVD burning tools. The program does not write optical media per se, but it provides an easy graphical interface to widely used Unix command line tools: cdrecord, cdrdao, mkisofs recently renamed in genisofs and growisofs. Moreover K3b supports many codecs and external filters enabling the analysis of audio CD and VideoCD, the extraction and format conversion of the content. The tool can perfectly integrate with the Trinity Desktop Environment in spite of being optional and untied to the desktop environment.

K3b and Slackware

The burning program was included in Slackware many years ago. A build script exist and can be updated and integrated for TDE distributed K3b release. K3b uses autotools to build as it has not been ported to cmake yet. The following rules were applied when compiling the package to ensure a clean build:

  • Directory /opt/trinity was set as package root directory.
  • Some missing makefiles were created running the make command from inside the main directory of the code extracted from the source archive.
  • The source code was patched in order to solve a version mismatch issue with libtool: the source code was configured for release 2.2.6, but 2.4.2 is installed along Slackware 14.0.
  • A static link was added to the doinst.sh install script. The link is needed by k3bsetup to find and enable library kcm_k3bsetup2.la. More details can be found below.
  • Some specific options were used for the configure command: --docdir, --without-cdrecord-suid-root and --enable-ffmpeg-all-codecs.

Some script lines of code and related comments follow.

Some configuration scripts required by the build procedure are missing from the source tarball. We create the makefiles using the make command:

   # Prepare the package for building (Create the configure script).
   echo "(II) admin makefile run here" >> ${OUTPUT}/${PRGNAM}_configure.log
   make -f admin/Makefile.common \
      2>&1 | tee -a ${OUTPUT}/${PRGNAM}_configure.log

A patch is needed to solve a libtool package version mismatch conflict:

   # Patch the admin/ltmain.sh script in order to solve a version mismatch.
   patch -p0 -i ${SRCDIR}/ltmain_version_update.patch

The script specifically sets Qt libraries paths in order for other scripts to find them at build time:

   # Add temporary paths to handle new libraries during build
   export QTDIR=/opt/trinity
   export PATH=/opt/trinity/bin:/usr/bin:$PATH
   export LIBDIR=/usr/lib${LIBDIRSUFFIX}
   export LD_LIBRARY_PATH=/usr/lib${LIBDIRSUFFIX}:/opt/trinity/lib${LIBDIRSUFFIX}
   export PKG_CONFIG_PATH=:/usr/lib${LIBDIRSUFFIX}/pkgconfig:/opt/trinity/lib${LIBDIRSUFFIX}/pkgconfig:$PKG_CONFIG_PATH

Finally the script runs the ./configure command to configure source code in accordance to the destination environment:

   # Configure the package
   ../${PRGNAM}-${VERSION}/configure \
   --prefix=${PREFIX} \
   --sysconfdir="/etc/trinity" \
   --libdir=${LIBDIR} \
   --docdir=/usr/doc \
   --mandir=${PREFIX}/man \
   --with-qt-dir=${QTDIR} \
   --with-qt-includes=${PREFIX}/include \
   --with-qt-libraries=${PREFIX}/lib${LIBDIRSUFFIX} \
   --disable-rpath \
   --without-cdrecord-suid-root \
   --enable-ffmpeg-all-codecs \
      2>&1 | tee -a ${OUTPUT}/${PRGNAM}_configure.log

Once the configuration successfully concludes, the script runs the make command then goes on with packaging the software.

After build conclusion, during the binary and configuration file installation, a partial doinst.sh file containing links to libraries is copied in the directory meant for post install scripts:

   # Add some links needed by Quanta to find plug-ins
   if [ -f ${SRCDIR}/doinst.sh ]; then
      cat ${SRCDIR}/doinst.sh >> ${PKG}/install/doinst.sh

A full script can be downloaded from the following link. The output package can be installed using command installpkg as usual in Slackware Linux.


K3bsetup is the configuration program for K3b useful to discover hardware and to set read / write permissions for such devices in order not to use K3b through the root user. Sadly K3bsetup does not seem able to find a needed software library in spite of them being successfully compiled and installed. The issue can be solved adding some lines of code in the doinst.sh script to link the library while installing the package. K3bsetup showing an error message at start-up and complaining for a missing kcm_k3bsetup2.la library means something went wrong. The missing link can be created running the following command:

  ln -s /usr/lib/trinity/kcm_k3bsetup2.la /opt/trinity/lib/trinity/kcm_k3bsetup2.la

If no /opt/trinity/lib/trinity directory is present on the system create it running command:

  mkdir -p /opt/trinity/lib/trinity

For any feedback, questions, errors and such, please e-mail me at studiosg [at] giustetti [dot] net

External Links

Languages: English - Italiano