12313 nightly should check for ld guidance

*** 189,199 ****
          /bin/time $MAKE -e install 2>&1 | \
              tee -a $SRC/${INSTALLOG}.out >> $LOGFILE
  
          echo "\n==== Build errors ($LABEL) ====\n" >> $mail_msg_file
          egrep ":" $SRC/${INSTALLOG}.out |
!             egrep -e "(^${MAKE}:|[      ]error[:        \n])" | \
              egrep -v "Ignoring unknown host" | \
              egrep -v "cc .* -o error " | \
              egrep -v "warning" | tee $TMPDIR/build_errs${SUFFIX} \
              >> $mail_msg_file
              sed -n "/^Undefined[        ]*first referenced$/,/^ld: fatal:/p" \
--- 189,199 ----
          /bin/time $MAKE -e install 2>&1 | \
              tee -a $SRC/${INSTALLOG}.out >> $LOGFILE
  
          echo "\n==== Build errors ($LABEL) ====\n" >> $mail_msg_file
          egrep ":" $SRC/${INSTALLOG}.out |
!             egrep -e "(^${MAKE}:|[      ]error[:        \n]|ld: guidance:)" | \
              egrep -v "Ignoring unknown host" | \
              egrep -v "cc .* -o error " | \
              egrep -v "warning" | tee $TMPDIR/build_errs${SUFFIX} \
              >> $mail_msg_file
              sed -n "/^Undefined[        ]*first referenced$/,/^ld: fatal:/p" \