= < > <= >=: it's OK to use the compiler macro when first, last args side effect 2010-12-29 Aidan Kehoe <kehoea@parhasard.net> * cl-macs.el (= < > <= >=): For these functions' compiler macros, the optimisation is safe even if the first and the last arguments have side effects, since they're only used the once.

#!/bin/sh
if gnuclient -batch -eval t >/dev/null 2>&1; then
  exec gnuclient ${1+"$@"}
else
  xemacs -unmapped -f gnuserv-start &
  until gnuclient -batch -eval t >/dev/null 2>&1
  do
     sleep 1
  done
  exec gnuclient ${1+"$@"}
fi