#! /bin/sh
#
# buildcheck.sh: Inspects the build setup to make detection and
# correction of problems an easier process.

# Initialize parameters
VERSION_CHECK="$1"

if test "$VERSION_CHECK" != "--release"; then
  echo "buildcheck: checking installation..."
else
  echo "buildcheck: checking installation for a source release..."
fi

#--------------------------------------------------------------------------
# autoconf 2.50 or newer
#
ac_version=`${AUTOCONF:-autoconf} --version 2>/dev/null|sed -e 's/^[^0-9]*//' -e 's/[a-z]* *$//' -e 1q`
if test -z "$ac_version"; then
  echo "buildcheck: autoconf not found."
  echo "            You need autoconf version 2.50 or newer installed."
  exit 1
fi
IFS=.; set $ac_version; IFS=' '
if test "$1" = "2" -a "$2" -lt "50" || test "$1" -lt "2"; then
  echo "buildcheck: autoconf version $ac_version found."
  echo "            You need autoconf version 2.50 or newer installed."
  echo "            If you have a sufficient autoconf installed, but it"
  echo "            is not named 'autoconf', then try setting the"
  echo "            AUTOCONF environment variable.  (See the INSTALL file"
  echo "            for details.)"
  exit 1
fi
if test "$ac_version" = "2.58"; then
  echo "buildcheck: autoconf version 2.58 found."
  echo "            This version of autoconf is broken.  Please install at"
  echo "            least autoconf 2.59 or downgrade to version 2.57 which"
  echo "            is known to work."
  exit 1
fi

echo "buildcheck: autoconf version $ac_version (ok)"

#--------------------------------------------------------------------------
# autoheader 2.50 or newer
#
ah_version=`${AUTOHEADER:-autoheader} --version 2>/dev/null|sed -e 's/^[^0-9]*//' -e 's/[a-z]* *$//' -e 1q`
if test -z "$ah_version"; then
  echo "buildcheck: autoheader not found."
  echo "            You need autoheader version 2.50 or newer installed."
  exit 1
fi
IFS=.; set $ah_version; IFS=' '
if test "$1" = "2" -a "$2" -lt "50" || test "$1" -lt "2"; then
  echo "buildcheck: autoheader version $ah_version found."
  echo "            You need autoheader version 2.50 or newer installed."
  echo "            If you have a sufficient autoheader installed, but it"
  echo "            is not named 'autoheader', then try setting the"
  echo "            AUTOHEADER environment variable.  (See the INSTALL file"
  echo "            for details.)"
  exit 1
fi

echo "buildcheck: autoheader version $ah_version (ok)"

#--------------------------------------------------------------------------
# libtool 1.4 or newer
#
LIBTOOL_WANTED_MAJOR=1
LIBTOOL_WANTED_MINOR=4
LIBTOOL_WANTED_PATCH=
LIBTOOL_WANTED_VERSION=1.4

# The minimum version for source releases is 1.4.3,
# because it's required by (at least) Solaris.
if test "$VERSION_CHECK" = "--release"; then
  LIBTOOL_WANTED_PATCH=3
  LIBTOOL_WANTED_VERSION=1.4.3
else
  case `uname -sr` in
    SunOS\ 5.*)
      LIBTOOL_WANTED_PATCH=3
      LIBTOOL_WANTED_VERSION=1.4.3
      ;;
  esac
fi

libtool=`./build/PrintPath glibtool libtool libtool15`
# Extract the libtool version number: everything from the first number in
# the version text until a hyphen or space.
lt_pversion=`$libtool --version 2>/dev/null |
  sed -e 's/^[^0-9]*//' -e 's/[- ].*//' -e '/^$/d' |
  sed -e 1q`
if test -z "$lt_pversion"; then
  echo "buildcheck: libtool not found."
  echo "            You need libtool version $LIBTOOL_WANTED_VERSION or newer installed"
  exit 1
fi
lt_version=`echo $lt_pversion|sed -e 's/\([a-z]*\)$/.\1/'`
IFS=.; set $lt_version; IFS=' '
lt_status="good"
if test "$1" = "$LIBTOOL_WANTED_MAJOR"; then
   if test "$2" -gt "$LIBTOOL_WANTED_MINOR"; then
      lt_status="good"
   elif test "$2" -lt "$LIBTOOL_WANTED_MINOR"; then
      lt_status="bad"
   elif test ! -z "$LIBTOOL_WANTED_PATCH"; then
       if test "$3" -lt "$LIBTOOL_WANTED_PATCH"; then
           lt_status="bad"
       fi
   fi
fi
if test $lt_status != "good"; then
  echo "buildcheck: libtool version $lt_pversion found."
  echo "            You need libtool version $LIBTOOL_WANTED_VERSION or newer installed"
  exit 1
fi

echo "buildcheck: libtool version $lt_pversion (ok)"

#--------------------------------------------------------------------------
# check that our local copies of files match up with those in APR(UTIL)
#
if test -d ./apr; then
  if cmp -s ./build/ac-macros/find_apr.m4 ./apr/build/find_apr.m4; then
    :
  else
    echo "buildcheck: local copy of find_apr.m4 does not match APR's copy."
    echo "            An updated copy of find_apr.m4 may need to be checked in."
  fi
  if cmp -s ./build/PrintPath ./apr/build/PrintPath; then
    :
  else
    echo "buildcheck: local copy of PrintPath does not match APR's copy."
    echo "            An updated copy of PrintPath may need to be checked in."
  fi
fi

if test -d ./apr-util; then
  if cmp -s ./build/ac-macros/find_apu.m4 ./apr-util/build/find_apu.m4; then
    :
  else
    echo "buildcheck: local copy of find_apu.m4 does not match APRUTIL's copy."
    echo "            An updated copy of find_apu.m4 may need to be checked in."
  fi
fi

#--------------------------------------------------------------------------
exit 0
