Just some thoughts:
common/hush.c:104:#include <stdlib.h> /* getenv, atoi */
This looks suspicious for a bootloader! I would examine this a little bit closer. Where's stdlib.h? Is this line really compiled into u-boot? I think not, look inside the code, there's an "#ifndef __U_BOOT__" right in front of it.
[...] board/MAI/bios_emulator/x86interface.c:56:int atoi(char *string) [...] board/xilinx/xilinx_iic/iic_adapter.c:146:atoi(uchar * string)
In these two places, someone seems to define an atoi(). It doesn't look like a normal place to do it if it was meant to be available to everyone. These obviously are "local" patches to be able to run copied code. Anyway, atoi is a pretty simple function, I'd just do the same as these two guys, and paste a sample implementation into my code....
Greetings,