#!/bin/sh

# Some systems have broken linkers that don't return a failure exit
# status when there are unresolved symbols in the link.  This script
# attempts to recognize errors by scanning stderr.

( $* 3>&1 1>&2 2>&3 | \
  awk '/[Ee]rror|ERROR|[Uu]nresolved|[Ff]atal/ {err=1}
       /File .* cannot be found/ {err=1}
       /Unsatisfied external references/ {err=1}
       {print}
       END {exit err}' ) 3>&1 1>&2 2>&3