#! /bin/sh

#

# Citus copy of PostgreSQL's config/prep_buildtree

#

# This script prepares a Citus build tree for an out-of-tree/VPATH

# build. It is intended to be run by the configure script.

me=`basename $0`

help="\

Usage: $me sourcetree [buildtree]"

if test -z "$1"; then

echo "$help" 1>&2

exit 1

elif test x"$1" = x"--help"; then

echo "$help"

exit 0

fi

unset CDPATH

sourcetree=`cd $1 && pwd`

buildtree=`cd ${2:-'.'} && pwd`

# We must not auto-create the subdirectories holding built documentation.

# If we did, it would interfere with installation of prebuilt docs from

# the source tree, if a VPATH build is done from a distribution tarball.

# See bug #5595.

for item in `find "$sourcetree" -type d \( \( -name CVS -prune \) -o \( -name .git -prune \) -o -print \) | grep -v "$sourcetree/doc/src/sgml/\ "`; do

subdir=`expr "$item" : "$sourcetree\(.*\)"`

if test ! -d "$buildtree/$subdir"; then

mkdir -p "$buildtree/$subdir" || exit 1

fi

done

for item in `find "$sourcetree" -not -path '*/.git/hg/*' \( -name Makefile -print -o -name GNUmakefile -print \)`; do

filename=`expr "$item" : "$sourcetree\(.*\)"`

if test ! -f "${item}.in"; then

if cmp "$item" "$buildtree/$filename" >/dev/null 2>&1; then : ; else

ln -fs "$item" "$buildtree/$filename" || exit 1

fi

fi

done

exit 0