Description of problem:
Latest scim (or libstdc++so7?) updates cause kmail, knode and kaffeine to 
crash at startup.  Other apps may also be affected but not all KDE apps crash, 
for example kate, konqueror and kcontrol are all unaffected,

Version-Release number of selected component (if applicable):
scim-1.4.4-9.2.fc5
libstdc++so7-4.2.0-0.3.20060428.fc5.1
kdepim-3.5.2-0.4.fc5

How reproducible:
Always

Steps to Reproduce:
1. Upgrade to scim-1.4.4-9.2.fc5, libstdc++so7-4.2.0-0.3.20060428
2. Start kmail, knode or kaffeine (kaffeine rpm from livna)
  
Actual results:
Application crashes at startup:
$ gdb knode
(gdb) set follow-fork-mode child
(gdb) run
Starting program: /usr/bin/knode
[Thread debugging using libthread_db enabled]
[New Thread 46912496361792 (LWP 15325)]
Attaching after fork to child process 15329.
[New LWP 15329]

Program received signal SIGSEGV, Segmentation fault.
[Switching to LWP 15329]
0x00002aaaae519d52 in scim::QScimInputContext::metaObject () 
from /usr/lib64/qt-3.3/plugins/inputmethods/libqscim.so
(gdb) bt
#0  0x00002aaaae519d52 in scim::QScimInputContext::metaObject () 
from /usr/lib64/qt-3.3/plugins/inputmethods/libqscim.so
#1  0x0000000000000000 in ?? ()

Expected results:
Applications shouldn't crash

Additional info:
Reverting to scim-1.4.4-9.1.fc5 and libstdc++so7-4.2.0-0.3.20060203 makes the 
problem go away with the same kdepim (3.5.2-0.4.fc5).