RHBA-2012:1291 - Bug Fix Advisory

Topic

Updated graphviz packages that fix three bugs are now available for Red Hat
Enterprise Linux 6.

Description

Graphviz is open-source graph-visualization software. Graph visualization is a
way of representing structural information as diagrams of abstract graphs and
networks. It has important applications in networking, bioinformatics, software
engineering, database and web design, machine learning, and in visual interfaces
for other technical domains.

This update fixes the following bugs:

• Previously, the dot tool could generate different images on 32-bit and 64-bit

architectures, which could consequently lead to multilib conflicts of packages
that use graphviz during its build process. The problem was caused by different
instructions used for floating points processing. On 32-bit Intel architecture,
the code is now compiled with the "--ffloat-store" compiler flag, which ensures
that identical images are generated regardless of the used architecture.
(BZ#772637)

• The graphviz-tcl package included the "demo" directory, which contained

examples in various languages. This caused implicit dependencies to be
introduced. With this update, all examples are installed as documentation, which
reduces the number of implicit dependencies. (BZ#821920)

• The "dot -c" command which is run in the %postun scriptlet recreates graphviz

configuration files to be up-to-date with the current state of the installed
plug-ins. Previously, if the command failed to load plug-ins specified in the
configuration files, warning messages were printed when removing the graphviz-gd
package. These messages could have been confusing, and have been therefore
removed. (BZ#849134)

All users of graphviz are advised to upgrade to these updated packages, which
fix these bugs.

Solution

Before applying this update, make sure all previously-released errata relevant
to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red
Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 772637 - Generated PNG files are different on various arches
• BZ - 849134 - Package graphviz-gd shows Warning Could not load /usr/lib/graphviz/libgvplugin_gd.so.6

CVEs

(none)

References

(none)