#!/bin/sh

# Run this to generate all the initial makefiles, etc.

# Tweaked by David Necas (Yeti) <yeti@physics.muni.cz> from various other

# autogen.sh's.  This file is in public domain.

DIE=0

PROJECT=Enca

ACLOCAL_FLAGS="-I m4"

(autoconf --version) < /dev/null > /dev/null 2>&1 || {

  echo

  echo "**ERROR**: You must have \`autoconf' installed to re-generate"

  echo "all the $PROJECT Makefiles."

  echo "Download the appropriate package for your distribution,"

  echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/."

  DIE=1

  NO_AUTOCONF=yes

}

(grep "^AM_PROG_LIBTOOL" ./configure.ac >/dev/null) && {

  (libtoolize --version) < /dev/null > /dev/null 2>&1 || {

    echo

    echo "**Error**: You must have \`libtoolize' installed."

    echo "Get ftp://ftp.gnu.org/pub/gnu/libtool-1.4.tar.gz"

    echo "(or a newer version if it is available)"

    DIE=1

    NO_LIBTOOL=yes

  }

}

(automake --version) < /dev/null > /dev/null 2>&1 || {

  echo

  echo "**ERROR**: You must have \`automake' installed to re-generate"

  echo "all the $PROJECT Makefiles."

  echo "Get ftp://ftp.gnu.org/pub/gnu/automake-1.8.3.tar.gz"

  echo "(or a newer version if it is available) and read DEVELOP.md."

  DIE=1

  NO_AUTOMAKE=yes

}

version_check ( ) {

    if [ "x$1" = "x" ] ; then

        echo "INTERNAL ERROR: version_check was not provided a minimum version"

        exit 1

    fi

    _min="$1"

    if [ "x$2" = "x" ] ; then

        echo "INTERNAL ERROR: version check was not provided a comparison version"

        exit 1

    fi

    _cur="$2"

    # needed to handle versions like 1.10 and 1.4-p6

    _min="`echo ${_min}. | sed 's/[^0-9]/./g' | sed 's/\.\././g'`"

    _cur="`echo ${_cur}. | sed 's/[^0-9]/./g' | sed 's/\.\././g'`"

    _min_major="`echo $_min | cut -d. -f1`"

    _min_minor="`echo $_min | cut -d. -f2`"

    _min_patch="`echo $_min | cut -d. -f3`"

    _cur_major="`echo $_cur | cut -d. -f1`"

    _cur_minor="`echo $_cur | cut -d. -f2`"

    _cur_patch="`echo $_cur | cut -d. -f3`"

    if [ "x$_min_major" = "x" ] ; then

        _min_major=0

    fi

    if [ "x$_min_minor" = "x" ] ; then

        _min_minor=0

    fi

    if [ "x$_min_patch" = "x" ] ; then

        _min_patch=0

    fi

    if [ "x$_cur_minor" = "x" ] ; then

        _cur_major=0

    fi

    if [ "x$_cur_minor" = "x" ] ; then

        _cur_minor=0

    fi

    if [ "x$_cur_patch" = "x" ] ; then

        _cur_patch=0

    fi

    if [ $_min_major -lt $_cur_major ] ; then

        return 0

    elif [ $_min_major -eq $_cur_major ] ; then

        if [ $_min_minor -lt $_cur_minor ] ; then

            return 0

        elif [ $_min_minor -eq $_cur_minor ] ; then

            if [ $_min_patch -lt $_cur_patch ] ; then

                return 0

            elif [ $_min_patch -eq $_cur_patch ] ; then

                return 0

            fi

        fi

    fi

    return 1

}

# The world is cruel.

if test -z "$NO_AUTOCONF"; then

  AC_VERSION=`autoconf --version | sed -e '2,$ d' -e 's/ *([^()]*)$//' -e 's/.* \(.*\)/\1/' -e 's/-p[0-9]\+//'`

  if ! version_check "2.52" "$AC_VERSION" ; then

    echo

    echo "**ERROR**: You need at least autoconf-2.52 installed to re-generate"

    echo "all the $PROJECT Makefiles."

    echo "Download the appropriate package for your distribution,"

    echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/."

    DIE=1

  else

    echo "Autoconf $AC_VERSION: OK"

  fi

fi

if test -z "$NO_AUTOMAKE"; then

  AM_VERSION=`automake --version | sed -e '2,$ d' -e 's/ *([^()]*)$//' -e 's/.* \(.*\)/\1/' -e 's/-p[0-9]\+//'`

  if ! version_check "1.8" "$AM_VERSION" ; then

    echo

    echo "**ERROR**: You need at least automake-1.8 installed to re-generate"

    echo "all the $PROJECT Makefiles."

    echo "Get ftp://ftp.gnu.org/pub/gnu/automake-1.8.3.tar.gz"

    echo "(or a newer version if it is available) and read DEVELOP.md."

    DIE=1

  else

    echo "Automake $AM_VERSION: OK"

  fi

fi

# if no automake, don't bother testing for aclocal

test -n "$NO_AUTOMAKE" || (aclocal --version) < /dev/null > /dev/null 2>&1 || {

  echo

  echo "**ERROR**: Missing \`aclocal'.  The version of \`automake'"

  echo "installed doesn't appear recent enough."

  echo "Get ftp://ftp.gnu.org/pub/gnu/automake-1.8.3.tar.gz"

  echo "(or a newer version if it is available) and read DEVELOP.md."

  DIE=1

}

if test -z "$NO_LIBTOOL"; then

  LT_VERSION=`libtoolize --version | sed -e '2,$ d' -e 's/ *([^()]*)$//' -e 's/.* \(.*\)/\1/' -e 's/-p[0-9]\+//' -e 's/^[a-zA-z]*-//'`

  if ! version_check "1.4" "$LT_VERSION" ; then

    echo

    echo "**ERROR**: You need at least libtool-1.4 installed to re-generate"

    echo "all the $PROJECT Makefiles."

    echo "Get ftp://ftp.gnu.org/pub/gnu/libtool-1.4.tar.gz"

    echo "(or a newer version if it is available) and read DEVELOP.md."

    DIE=1

  else

    echo "Libtool $LT_VERSION: OK"

  fi

fi

if test "$DIE" -eq 1; then

  exit 1

fi

case $CC in

*xlc | *xlc\ * | *lcc | *lcc\ * )

  am_opt=--include-deps;;

esac

dir=.

echo processing $dir

(cd $dir && \

  libtoolize --force --copy && \

  aclocal $ACLOCAL_FLAGS && \

  autoheader && \

  automake --add-missing $am_opt && \

  autoconf) || {

    echo "**ERROR**: Re-generating failed.  You are allowed to shoot $PROJECT maintainer."

    echo "(BTW, why are you re-generating everything? Have you read DEVELOP.md?)"

    exit 1

  }

if test -z "$*"; then

  echo "**Warning**: I am going to run \`configure' with no arguments."

  echo "If you wish to pass any to it, please specify them on the"

  echo "\`$0' command line."

  echo

fi

./configure "$@"