freebsd-ports/chinese/CJK/scripts/pre-build

#!/bin/sh
PATH=/bin:/usr/bin; export PATH

# Check if teTeX is installed.
if [ ! -f ${PREFIX}/share/texmf/doc/tetex/README ]; then
  echo "-----------------------------------------"
  echo "teTeX is not installed!"
  echo "It's recommended to use CJK upon teTeX!"
  echo "-----------------------------------------"
  exit 1
# Juse grep for 1.0 is not a preferred method, but it seems there is no
# other way identifying whether teTeX 1.0 or above is installed.
elif [ -z "`head -1 ${PREFIX}/share/texmf/doc/tetex/README |grep 1\.0`" ]; then
  echo "-------------------------------------------" 
  echo " You do not have teTeX-1.0 installed!"
  echo " CJK 4.3.0 needs it to function properly."
  echo "-------------------------------------------"
  exit 1
fi