#!/bin/sh

#
# Copyright 1999-2004 The Apache Software Foundation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
#
# runConfigure:
#    This script will run the "configure" script for the appropriate
#    platform. Only supported platforms are recognized.
#
# The following variables are defined and exported at the end of this
# script.
#
# LIBS
# LDFLAGS
# CXXFLAGS
#

usage()
{
    echo "runConfigure: Helper script to run \"configure\" for one of the supported platforms"
    echo "Usage: runConfigure \"options\""
    echo "       where options may be any of the following:"
    echo "       -p <platform> (accepts 'aix', 'linux', 'freebsd', 'netbsd', 'solaris',
            'hp-10', 'hp-11', 'irix', 'tru64', 'macosx')"
    echo "       -c <C compiler name> (e.g. gcc, cc, xlc)"
    echo "       -x <C++ compiler name> (e.g. g++, CC, xlC)"
    echo "       -d (specifies that you want to build debug version)"
    echo "       -t <transcoder> can be 'icu' (everything else means default)"
    echo "       -r <thread option> can be 'pthread' or 'dce' (only used on HP-11)"
    echo "       -b <bitsToBuild> (accepts '64', '32')"
    echo "       -P <install-prefix>"
    echo "       -l <extra linker options>"
    echo "       -z <extra compiler options>"
    echo "       -C <any one extra configure options>"
    echo "       -h (to get help on the above commands)"
}

ERROR_EXIT_CODE=1

if test ${1}o = "o"; then
   usage
   exit ${ERROR_EXIT_CODE}
fi

if test ${XALANCROOT}o = "o"; then
   echo ERROR : You have not set your XALANCROOT environment variable
   echo Though this environment variable has nothing to do with creating makefiles,
   echo this is just a general warning to prevent you from pitfalls in future. Please
   echo set an environment variable called XALANCROOT to indicate where you installed
   echo the XALAN-C files, and run this command again to proceed. See the documentation
   echo for an example if you are still confused.
   exit ${ERROR_EXIT_CODE}
fi

if test $1 = "-h"; then
   usage
   exit ${ERROR_EXIT_CODE}
fi

# Get the command line parameters
if test -x /bin/getopt -o -x /usr/bin/getopt; then
set -- `getopt C:p:P:c:x:dm:n:t:r:b:l:z:h $*`
else
set -- `getopts C:p:P:c:x:dm:n:t:r:b:l:z:h $*`
fi

if [ $? != 0 ]
   then
   usage
   exit ${ERROR_EXIT_CODE}
fi

# Set up the default values for each parameter
debug=off                # by default debug is off
bitsToBuild=32           # by default 32 bit build assumed
transcoder=default       # by default use default transcoder

while [ $# -gt 0 ]
   do
   case $1 in
   -p) 
        platform=$2; shift 2;;

   -c) 
        ccompiler=$2; shift 2;;

   -x) 
        cppcompiler=$2; shift 2;;

   -d) 
        debug=on; shift;;

   -t)
        transcoder=$2; shift 2;;

   -r) 
        thread=$2; shift 2;;

   -b)
        bitsToBuild=$2; shift 2;;
  
   -P)
        configureoptions="$configureoptions --prefix=$2"; shift 2;;

   -l)
        linkeroptions="$linkeroptions $2"; shift 2;;

   -z) 
        compileroptions="$compileroptions $2"; shift 2;;

   -C)
        configureoptions="$configureoptions $2"; shift 2;;

   -h) 
        usage
        exit ${ERROR_EXIT_CODE};; 

   --) 
        shift; break;; 

   *)
       echo "unknown option $1"
       usage
       exit ${ERROR_EXIT_CODE};;
   esac
done

echo "Generating makefiles with the following options ..."
echo "Platform: $platform"
echo "C Compiler: $ccompiler"
echo "C++ Compiler: $cppcompiler"
echo "Extra compile options: $compileroptions"
echo "Extra link options: $linkeroptions"
echo "Transcoder: $transcoder"
echo "Thread option: $thread"
echo "bitsToBuild option: $bitsToBuild"
echo "Extra configure options: $configureoptions"


#
# Now check if the options are correct or not, bail out if incorrect
#

case $platform in
   aix | linux | freebsd | netbsd | solaris | hp-10 | hp-11 | irix | tru64 | macosx)
       # platform has been recognized
       ;;
   *)
      echo "I do not recognize the platform '$platform'. Please type '${0} -h' for help."
      exit ${ERROR_EXIT_CODE};;
esac


#
# Enable debugging or not...
#

if test $debug = "off"; then
    echo "Debug is OFF"
    if test $platform = "linux"; then
		if test $cppcompiler = "icpc"; then
			debugflag="-O3 -DNDEBUG";
		else
			debugflag="-O2 -DNDEBUG";
		fi
    else
        debugflag="-O -DNDEBUG";
    fi
else
    echo "Debug is ON"
    debugflag="-g";
fi


#
# Check for the bitsToBuild option
#

#
#  aix | linux | hp-11 | solaris |
#  hp-10 | freebsd | netbsd | irix | openserver | unixware | os400 | ptx | tru64 | macosx
#
if test $bitsToBuild = 64; then
    bitstobuildDefines=" -DXML_BITSTOBUILD_64 "
    bitstobuildLink=" "
    if test $platform; then
        case $platform in
           solaris)
              bitstobuildDefines=" $bitstobuildDefines -xarch=v9 "
              bitstobuildLink=" -xarch=v9 " ;;
           aix)
              bitstobuildDefines=" $bitstobuildDefines -q64 -qwarn64 " ;;
           hp-11)
              bitstobuildDefines=" $bitstobuildDefines +DA2.0W "
              bitstobuildLink=" +DA2.0W " ;;
           linux)
              bitstobuildDefines=" $bitstobuildDefines " ;;
           *)
            ;;
        esac
    fi
elif test $bitsToBuild = 32; then
    bitstobuildDefines=" "
    bitstobuildLink=" "
    if test $platform; then
        case $platform in
           solaris)
		      ;;
           aix)
		      ;;
           hp-11)
              bitstobuildDefines=" $bitstobuildDefines +DAportable "
			  ;;
           linux)
              ;;
           *)
            ;;
        esac
    fi
else
    echo "I do not recognize the bitsToBuild '$bitsToBuild'. Please type '${0} -h' for help."
    exit ${ERROR_EXIT_CODE};
fi

#
# to export in case it is needed in Makefile.in/Makefine.incl
#
BITSTOBUILD=$bitsToBuild
export BITSTOBUILD

#
# Now check whether to use 'icu' as transcoder
#
TRANSCODER=
if test $transcoder; then
    case $transcoder in
        icu)
	    if test ${ICUROOT}o = "o"; then
		    echo '***Error*** ICUROOT environment variable not defined. Exiting...';
		    exit ${ERROR_EXIT_CODE};
            fi
	    transcodingDefines="-I${ICUROOT}/include";
	    transcodingLibs="-L${ICUROOT} -L${ICUROOT}/lib -L${ICUROOT}/data";
	    TRANSCODER=ICU;;

	default)
	    ;;
	*)
	    echo "Unknown transcoder '$transcoder'. Using default."
	    ;;
    esac
fi

export TRANSCODER


#
# Check for the threading option
#

threadingLibs="-lpthread"
if test $platform = "hp-11"; then
    if test $thread; then
    case $thread in
       pthread)
           ;;
    
       dce)
           threadingLibs="-lcma";
           threadingDefines="-D_PTHREADS_DRAFT4 -DXML_USE_DCE" ;;
    
       *)
           echo "I do not recognize the thread option '$thread'. Please type '${0} -h' for help."
           exit ${ERROR_EXIT_CODE};;
    esac
    fi
elif test $platform = "aix"; then
    threadingLibs="-lpthreads"
elif test $platform = "freebsd"; then
    if test -n "${PTHREAD_LIBS}" ; then
      threadingLibs="${PTHREAD_LIBS}"
      threadingDefines="${PTHREAD_CFLAGS}"
    else
      threadingLibs="-lpthread"
      threadingDefines=""
    fi
elif test $platform = "netbsd"; then
    threadingLibs="-pthread -lpthread"
elif test $platform = "hp-10"; then
    threadingLibs="-lcma"
    threadingDefines="-DXML_USE_DCE"
fi


#
# Set the C compiler and C++ compiler environment variables
#

case $cppcompiler in
   xlC | xlc | xlC_r | xlc_r | g++ | c++ | cc | CC | aCC | cxx | icpc)
      ;;

   *)
      echo "I do not recognize the C++ compiler '$cppcompiler'. Continuing anyway ..." 
      ;;
esac

CC="$ccompiler"
export CC

CXX="$cppcompiler"
export CXX


#
# Set the extra C and C++ compiler flags
#

CXXFLAGS="$compileroptions $debugflag $transcodingDefines $threadingDefines $bitstobuildDefines "
export CXXFLAGS

CFLAGS="$compileroptions $debugflag $transcodingDefines $threadingDefines $bitstobuildDefines "
export CFLAGS

LDFLAGS="$LDFLAGS $linkeroptions $bitstobuildLink"
export LDFLAGS

LIBS="$transcodingLibs $threadingLibs "
export LIBS


echo
rm -f config.cache
rm -f config.log
rm -f config.status
`dirname $0`/configure $configureoptions

echo
echo If the result of the above commands look OK to you, go to the directory
echo ${XALANCROOT}/samples and type \"gmake\" or \"make\" to make the XALAN-C samples.
echo
echo Note: You must use GNU make to use the Xalan Makefile.

exit  0;