Does anyone know why when I (re-)build busybox with a minorly
modified .config (via make oldconfig), all things go to hell.  In
particular, the build completes fine but at run-time a lot of utilities
barf with the __register_frame_info error, as below:

[: can't resolve symbol '__register_frame_info'                                 
[: can't resolve symbol '__register_frame_info'                                 
[: can't resolve symbol '__register_frame_info'                                 
Starting proc gpio...                                                           
[: can't resolve symbol '__register_frame_info'                                 
[: can't resolve symbol '__register_frame_info'                                 
[: can't resolve symbol '__register_frame_info'                                 
[: can't resolve symbol '__register_frame_info' 

Are these utilities statically bound to (the old) busybox somehow?
I followed the build procedures documented at the Wiki to build
busybox.

Right now, to attain a workable rootfs, I have to remove the root/
staging area and do a make clean and (re-)make from the top.
Life should be easier than this.

Thanks for insights.