Description of problem:
xchat as of xchat-2.8.4-10.fc8 crashes when the transparent background is
enabled. It had been working fine for many versions previous.

Version-Release number of selected component (if applicable):
xchat-2.8.4-10.fc8

How reproducible:
in kde & gnome. no compiz.

Steps to Reproduce:
1. Choose Settings > Preferences, and enable the 'Transparent Background' checkbox.
2. Click OK.
  
Actual results:
xchat will crash, and continue to crash upon startup, until "text_transparent"
in ~/.xchat/xchat.conf is reset to 0.

Expected results:
transparent bg showing through as always.

Additional info:
[foobar@nano ~]$ xchat

Gdk-ERROR **: The program 'xchat' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadPixmap (invalid Pixmap parameter)'.
  (Details: serial 42289 error_code 4 request_code 54 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
aborting...
51787039-0432-9541-4de8a05a-79d5540b is dumped


Would appear to be related to changes here:
* Thu Dec 20 2007 Adam Jackson <ajax@redhat.com> 1:2.8.4-9
- xchat-2.8.4-shm-pixmaps.patch: MIT-SHM pixmaps are optional, and when
  using EXA they are not available.  Check that the server supports them
  before trying to create them so we don't crash.