source: to-imperative/trunk/config.functions @ 11

#!/bin/sh

config_functions=1

if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='        '
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi

echon ()
{
  echo $ac_n "$*"$ac_c
}

merge_lists ()
{
  res="$1"
  for arg1 in $2; do
    match=no
    for arg2 in $1; do
      if [ "$arg1" = "$arg2" ]; then
        match=yes
      fi
    done
    if [ "$match" = "no" ]; then res="$res $arg1"; fi
  done
  echo $res
}