4.2.3.2 mcs-manager and xffm no go

[Andrew]

Hi all,

I've compiled Xfce 4.2.3.2 on my sytem (Apple iBook G3) running Yellow 
Dog Linux 4.1 (a specialized distro for PPC Macs).

Everything compiled and installed without errors, but I cannot run
xfce-mcs-manager and xffm.

Trying to run xfce-mcs-manager yelds the following error:

** (xfce-mcs-manager:27548): WARNING **: Module 
/usr/local/lib/xfce4/mcs-plugins/libxffmsettings.so cannot be opened 
(/lib/tls/libpthread.so.0: symbol errno, version GLIBC_PRIVATE not 
defined in file libc.so.6 with link time reference)
Segmentation fault


Trying to run xffm gives this:

xffm: relocation error: /lib/tls/libpthread.so.0: symbol errno, version 
GLIBC_PRIVATE not defined in file libc.so.6 with link time reference


Does anybody know what the problem is and what I should do?

Thanks in advance...

Andrew