>   building standard c library     
>   trap: Illegal number: EXIT      
>   trap: Illegal number: HUP

this looks like you need a newer sh.  from the cvs log for trap.c:

----------------------------
revision 1.26
date: 2001/03/18 04:04:23;  author: wulf;  state: Exp;  lines: +83 -8

Extended functionality of the trap builtin, which now closely follows
POSIX recommendations.

        - trap now accepts signal names and signal numbers
          e.g. INT, SIGINT, 2
        - added option -l that outputs a list of valid signals
        - added signal EXIT to list of valid signals
        - a `-' in the action part will reset specified signal to their
          default behaviour
        - changed standard output format to make it suitable as an input
          to another shell that achieves the same trapping results
----------------------------

how old is your present /bin/sh?

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