xorg-x11 bug fix update

Updated xorg-x11 packages that address various bugs are now available.

X.org X11 is an open source implementation of the X Window System. It
provides the basic low-level functionality that full-fledged graphical
user interfaces (GUIs) such as GNOME and KDE are designed upon.

The following issues have been addressed in this update:

- X server crashed when using ALT-TAB to switch between applications

- Static-only X libraries were not built as position-independent code
on IBM S/390 and ppc64 architectures.

- The xconsole application has been updated with UNIX98 pty support,
allowing it to function correctly. Important note: xconsole requires
permission to access /dev/console in order to function. For security
purposes, the default /etc/pam.d/console.perms settings only allow
the root user access to /dev/console, thereby limiting the use of
xconsole to the root user.

- The X server could enter into an infinite loop if the list of PCI
busses contained a bridge with primary bus value of -1.

- fstobdf would generate corrupted BDF font files

- An unaligned access bug in the X server RENDER extension.

- Radeon 7000 DRI support is unstable, and should have been disabled
by default in our previous update. However, a logic flaw in the
workaround caused DRI to be forcibly enabled on this hardware,
even if manually disabled.

- Hindi input did not work properly in KDE/Qt applications.

- GB18030 support was missing

- Speedo fonts are now removed, as X.Org X11 6.8.2 no longer has support
for speedo fonts.

In addition, the following enhancements have been made:
- Intel i945 DRI support is now enabled for more hardware.

Users should upgrade to these updated packages, which resolve these issues.

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

This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

166571 - Xserver infinite loop if xf86PciBus list contains bridge with primary bus value of -1
167699 - Corrupted BDFs generated when using fstobdf on a X.org xfs
168145 - Xfree crash on multiple alt-tab with glx program
170008 - X Hangs on Radeon 7000 after RHEL4U2 Update