Build Error

>>But know i have another problem, i can't download linux-2.6.21-rc7-ul.diff.gz.
Now it's working because i downloaded the file manually. Unfortunenatly there 
are other errors:
1. If "This is a cross-build" is marked then i got the error at stage 1 package 
pkgconfig:
   phthread_mutex_trylock is posix like ..

2. If "This is a cross-build" is not marked then busybox will not configure at 
stage 1

I will try other configurations... 

Yours,
Hansjoerg