bitbake Build failure (Maybe because of LOCALE?)

[Liorrrrr]

Hello,

I use Ubuntu and I've been trying to install gumstix-oe according to the following instructions:
http://www.gumstix.net/Software/view/Getting-started/Quick-start/111.html

The build stops with the following error:

NOTE: Running task 202 of 1391 (ID: 238, /media/host/gumstix/gumstix-oe/org.openembedded.snapshot/packages/git/git-native_1.5.2.3.bb, do_unpack)
NOTE: package git-native-1.5.2.3: started
NOTE: package git-native-1.5.2.3-r4: task do_unpack: started
NOTE: Unpacking /usr/share/sources/git-1.5.2.3.tar.bz2 to /media/host/gumstix/gumstix-oe/tmp/work/i686-linux/git-native-1.5.2.3-r4/
tar: git-1.5.2.3/gitweb/test/Märchen: Cannot open: Invalid or incomplete multibyte or wide character
tar: Skipping to next header
tar: Error exit delayed from previous errors
NOTE: Task failed:
NOTE: package git-native-1.5.2.3-r4: task do_unpack: failed
ERROR: TaskFailed event exception, aborting
NOTE: package git-native-1.5.2.3: failed
ERROR: Build of /media/host/gumstix/gumstix-oe/org.openembedded.snapshot/packages/git/git-native_1.5.2.3.bb do_unpack failed
ERROR: Task 238 (/media/host/gumstix/gumstix-oe/org.openembedded.snapshot/packages/git/git-native_1.5.2.3.bb, do_unpack) failed
NOTE: Tasks Summary: Attempted 201 tasks of which 0 didn't need to be rerun and 1 failed.
ERROR: '/media/host/gumstix/gumstix-oe/org.openembedded.snapshot/packages/git/git-native_1.5.2.3.bb' failed

I guess the problem has to do with the "git-1.5.2.3/gitweb/test/Märchen" filename, which probably cannot be handled by bash?

Is my assumption seem reasonable? How can I solve this?

Thanks,
Lior.