configure

#!/bin/sh

LC_ALL=C
export LC_ALL

# Solaris (order of paths important for tr, echo, grep, sed to work)
PATH="/usr/xpg4/bin:/usr/ucb:$PATH:/usr/local/bin:/usr/sfw/bin:/usr/ccs/bin"

# Wrapper for old "which" binary that always exits with 0
which_wrapper()
{
  if [ -z "$old_which" ]; then
    if which /bin/N0N_Existent_File_38912112___ 2> /dev/null > /dev/null; then
      old_which="true"
    else
      old_which="false"
    fi
  fi
  if [ "$old_which" = "true" ]; then
    retval=`which $* 2>/dev/null`
    echo "$retval"
    test -n "$retval" -a -x "$retval"
    unset retval
  else
    which $* 2> /dev/null
  fi
}

# Determine the OS
OS=`uname -s | sed -e 's/GNU\/Linux/Linux/g' | tr [:upper:] [:lower:]`

# Define defaults
CC="gcc"
LIBREADLINE="-lreadline"
PKGCONFIG="`which_wrapper pkg-config`"
LOG="configure.log"
CNF=

# Some OS's like Solaris/Darwin /bin/sh has a builtin echo that doesn't grok -n
if [ "$OS" = "darwin" -o "$OS" = "sunos" ]; then
  ECHO_N="/bin/echo -n"
else
  ECHO_N="echo -n"
fi