#!/bin/sh
# Copyright (c) 1999-2003, International Business Machines Corporation and
# others. All Rights Reserved.

# runConfigureICU: This script will run the "configure" script for the appropriate platform
# Only supported platforms are recognized

me=`basename $0`
OPTS=

usage()
{
    ec=0$1
    if test $ec -eq 0
    then
        uletter=U
    else
        uletter=u
    fi

    echo "${uletter}sage: $me [ -h, --help ]  [ --enable-debug | --disable-release ] platform [ configurearg ... ]"
    if test $ec -eq 0
    then
        cat <<EOE

Options: -h, --help         Print this message and exit
         --enable-debug     Enable support for debugging
         --disable-release  Disable presetting optimization flags

The following names can be supplied as the argument for platform:

    AIX4.3xlC               Use IBM's xlC on AIX 4.3
    AIX4.3xlC_nothreads     Use IBM's xlC on AIX 4.3 with no multithreading
    AIX4.3VA                Use IBM's Visual Age xlC_r compiler on AIX 4.3
    AIXGCC                  Use GCC on AIX
    ALPHA/LINUXGCC          Use GCC on Alpha/Linux systems
    ALPHA/LINUXCCC          Use Compaq C compiler on Alpha/Linux systems
    BeOS                    Use the GNU C++ compiler on BeOS
    Cygwin                  Use the GNU C++ compiler on Cygwin
    Cygwin/MSVC             Use the Microsoft Visual C++ compiler on Cygwin
    FreeBSD                 Use the GNU C++ compiler on Free BSD
    HP-UX11ACC              Use the Advanced C++ compiler on HP-UX 11
    HP-UX11CC               Use HP's C++ compiler on HP-UX 11
    LinuxRedHat             Use the GNU C++ compiler on Linux
    LINUX/ECC               Use the Intel ECC compiler on Linux
    LINUX/ICC               Use the Intel ICC compiler on Linux
    MacOSX                  Use the GNU C++ compiler on MacOS X (Darwin)
    QNX                     Use QNX's QCC compiler on QNX/Neutrino
    SOLARISCC               Use Sun's CC compiler on Solaris
    SOLARISCC/W4.2          Use Sun's Workshop 4.2 CC compiler on Solaris
    SOLARISGCC              Use the GNU C++ compiler on Solaris
    SOLARISX86              Use Sun's CC compiler on Solaris x86
    TRU64V5.1/CXX           Use Compaq's cxx compiler on Tru64 (OSF)
    zOS                     Use IBM's cxx compiler on z/OS (os/390)
    zOSV1R2                 Use IBM's cxx compiler for z/OS 1.2
    OS390V2R10              Use IBM's cxx compiler for OS/390 2.10
EOE
    fi

    exit $ec
}

# Parse arguments

platform=
debug=0
release=1

while test $# -ne 0
do
    case "$1" in
    -h|--help)
        usage 0
        ;;
    --enable-debug)
        debug=1
        OPTS="$OPTS --enable-debug"
        ;;
    --disable-release)
        release=0
        OPTS="$OPTS --disable-release"
        ;;
    *)
        platform="$1"
        shift
        break
        ;;
    esac
    shift
done

if test x$platform = x
then
   usage 1
fi

# Go.

rm -f config.cache
rm -f config.log
rm -f config.status

DEBUG_CFLAGS='-g'
DEBUG_CXXFLAGS='-g'

if test x$configure = x
then
    if test -f ./configure
    then
        configuredir=.
    else
        configuredir=`echo $0 | sed 's,[^/]*$,,'`
        if test x$configuredir = x$0
        then
            configuredir=.
        fi
    fi

    if test x$configuredir = x
    then
        configuredir=.
    fi

    configure=$configuredir/configure
fi

case $platform in
    AIX4.3xlC)
        THE_OS=AIX
        THE_COMP="xlC_r"
        CC=/usr/ibmcxx/bin/xlc_r; export CC
        CXX=/usr/ibmcxx/bin/xlC_r; export CXX
        RELEASE_CFLAGS="-O -qmaxmem=-1"
        RELEASE_CXXFLAGS="-O -qmaxmem=-1"
        ;;
    AIX4.3xlC_nothreads)
        THE_OS=AIX
        THE_COMP="xlC"
        CC=/usr/ibmcxx/bin/xlc; export CC
        CXX=/usr/ibmcxx/bin/xlC; export CXX
        AIX_SHLIB=/usr/ibmcxx/bin/makeC++SharedLib; export AIX_SHLIB
        RELEASE_CFLAGS="-O -qmaxmem=-1"
        RELEASE_CXXFLAGS="-O -qmaxmem=-1"
        OPTS="$OPTS --enable-threads=no"
        ;;
    AIX4.3VA)
        THE_OS=AIX
        THE_COMP="xlC_r"
        CC=`which xlc_r`; export CC
        CXX=`which xlC_r`; export CXX
        RELEASE_CFLAGS="-O2 -qmaxmem=-1"
        RELEASE_CXXFLAGS="-O2 -qmaxmem=-1"
        #LDFLAGS=-L/usr/lpp/xlC/lib; export LDFLAGS
        ;;
# For no threads use --enable-threads=no. Visual Age makes no distinction between xlC and xlC_r or any other _r programs.
    AIXGCC)
        THE_OS=AIX
        THE_COMP="gcc"
        CC=`which gcc`; export CC
        CXX=`which g++`; export CXX
        ;;
    SOLARISX86)
        THE_OS="SOLARIS X86"
        THE_COMP="Sun's CC"
        CC=`which cc`; export CC
        CXX=`which CC`; export CXX
        CXX_FLAGS="-w";export CXX_FLAGS
        C_FLAGS="-w";export C_FLAGS
        LDFLAGS="-L -lCrun";export LDFLAGS
        RELEASE_CFLAGS=-xO3
        RELEASE_CXXFLAGS=-O3
        ;;
    SOLARISCC)
        THE_OS=SOLARIS
        THE_COMP="Sun's CC"
        CC=`which cc`; export CC
        CXX=`which CC`; export CXX
        RELEASE_CFLAGS=-xO4
        RELEASE_CXXFLAGS=-O4
        ;;
    SOLARISCC/W4.2)
        THE_OS=SOLARIS
        THE_COMP="Sun's CC"
        CC=`which cc`; export CC
        CXX=`which CC`; export CXX
        RELEASE_CFLAGS=-x04
        RELEASE_CXXFLAGS="-O4 +d"
        ;;
    SOLARISGCC)
        THE_OS=SOLARIS
        THE_COMP="the GNU C++"
        CXXFLAGS=-I/usr/local/include/g++; export CXXFLAGS
        LDFLAGS=-R/usr/local/lib; export LDFLAGS
        RELEASE_CXXFLAGS=-O
        RELEASE_CFLAGS=-O3
        ;;
    HP-UX11CC)
        THE_OS="HP-UX 11"
        THE_COMP="HP's CC"
        CC=cc; export CC
        CXX=CC; export CXX
        RELEASE_CFLAGS='+O2 +Ofltacc'
        RELEASE_CXXFLAGS='+O2 +Ofltacc'
        ;;
    HP-UX11ACC)
        THE_OS="HP-UX 11"
        THE_COMP="aCC"
        CC=cc; export CC
        CXX=aCC; export CXX
        RELEASE_CFLAGS='+O2 +Ofltacc'
        RELEASE_CXXFLAGS='+O2 +Ofltacc'
        ;;
    TRU64V5.1/CXX)
        THE_OS="OSF1"
        THE_COMP="Compaq cxx"
        CC=cc; export CC
        CXX=cxx; export CXX
        ;;
    ALPHA/LINUXCCC)
        THE_OS="Linux"
        THE_COMP="Compaq's CC"
        CC=ccc; export CC
        CXX=cxx; export CXX
        RELEASE_CFLAGS='-O4'
        RELEASE_CXXFLAGS='-O4'
        ;;
    ALPHA/LINUXGCC)
        THE_OS="Linux"
        THE_COMP="the GNU C++"
        CC=gcc; export CC
        CXX=g++; export CXX
        ;;
    LinuxRedHat*)
        THE_OS="Linux"
        THE_COMP="the GNU C++"
        CC=gcc; export CC
        CXX=g++; export CXX
        ;;
    LINUX/ECC)
        THE_OS="Linux"
        THE_COMP="Intel ECC 7.1"
        CC=ecc; export CC
        CXX=ecpc; export CXX
        RELEASE_CFLAGS='-O2'
        RELEASE_CXXFLAGS='-O2'
        ;;
    LINUX/ICC)
        THE_OS="Linux"
        THE_COMP="Intel ICC 6.0"
        CC=icc; export CC
        CXX=icpc; export CXX
        RELEASE_CFLAGS='-O0'
        RELEASE_CXXFLAGS='-O0'
        ;;
    Cygwin)
        THE_OS="Cygwin"
        THE_COMP="the GNU C++"
        RELEASE_CFLAGS='-O3'
        RELEASE_CXXFLAGS='-O3'
        ;;
    Cygwin/MSVC)
        THE_OS="Windows with Cygwin"
        THE_COMP="Microsoft Visual C++"
        CC=cl; export CC
        CXX=cl; export CXX
        RELEASE_CFLAGS='/O2 /Ob2'
        RELEASE_CXXFLAGS='/O2 /Ob2'
        # The real debug flags are defined by the mh file because configure can't handle them.
        DEBUG_CFLAGS=
        DEBUG_CXXFLAGS=
        ;;
    MacOSX)
        THE_OS="MacOS X (Darwin)"
        THE_COMP="the GNU C++"
        RELEASE_CFLAGS='-O2'
        RELEASE_CXXFLAGS='-O2'
        ;;
    *BSD)
        THE_OS="BSD"
        THE_COMP="the GNU C++"
        CC=gcc; export CC
        CXX=g++; export CXX
        ;;
    QNX)
        THE_OS="QNX"
        THE_COMP="QNX cc"
        CC=qcc; export CC
        CXX=QCC; export CXX
        ;;
    BeOS)
        THE_OS="BeOS"
        THE_COMP="the GNU C++"
        OPTIMIZATIONS="-fdefault-inline -fdefer-pop -fforce-mem -fforce-addr \
            -finline -finline-functions \
            -fkeep-inline-functions -fkeep-static-consts -fbranch-count-reg \
            -ffunction-cse -fstrength-reduce -fthread-jumps -fcse-follow-jumps \
            -fcse-skip-blocks -frerun-cse-after-loop -frerun-loop-opt \
            -fexpensive-optimizations -foptimize-register-move -fregmove \
            -fschedule-insns -fschedule-insns2 -ffloat-store -funroll-loops \
            -fmove-all-movables -freduce-all-givs -fpeephole \
            -funroll-all-loops -ffunction-sections -fdata-sections"
        RELEASE_CFLAGS="$OPTIMIZATIONS"
        RELEASE_CXXFLAGS="$OPTIMIZATIONS"
        ;;
    zOS)
        THE_OS="z/OS (OS/390)"
        THE_COMP="z/OS 1.2 (through OS/390 v2r10) C/C++"
        CC=cc; export CC
        CXX=cxx; export CXX
        export RELEASE_CFLAGS='-2'
        export RELEASE_CXXFLAGS='-2'
        ;;
    zOSV1R2)
        THE_OS="z/OS 1.2"
        THE_COMP="z/OS 1.2 C/C++"
        CC=cc; export CC
        CXX=cxx; export CXX
        export COMPILE_LINK_ENVVAR='_CXX_CVERSION=0x41020000 _C89_CVERSION=0x41020000 _CC_CVERSION=0x41020000 _CXX_PVERSION=0x41020000 _C89_PVERSION=0x41020000 _CC_PVERSION=0x41020000'
        export _CXX_CVERSION=0x41020000 _C89_CVERSION=0x41020000 _CC_CVERSION=0x41020000 _CXX_PVERSION=0x41020000 _C89_PVERSION=0x41020000 _CC_PVERSION=0x41020000
        export LDFLAGS=-Wl,"compat=pm3"
        export CFLAGS='-Wc,"target(zOSV1R2)"'
        export CXXFLAGS='-Wc,"target(zOSV1R2)"'
        export RELEASE_CFLAGS='-2'
        export RELEASE_CXXFLAGS='-2'
        ;;
    OS390V2R10)
        THE_OS="OS/390 2.10"
        THE_COMP="OS/390 2.10 C/C++"
        CC=cc; export CC
        CXX=cxx; export CXX
        export COMPILE_LINK_ENVVAR='_CXX_CVERSION=0x220A0000 _C89_CVERSION=0x220A0000 _CC_CVERSION=0x220A0000 _CXX_PVERSION=0x220A0000 _C89_PVERSION=0x220A0000 _CC_PVERSION=0x220A0000'
        export _CXX_CVERSION=0x220A0000 _C89_CVERSION=0x220A0000 _CC_CVERSION=0x220A0000 _CXX_PVERSION=0x220A0000 _C89_PVERSION=0x220A0000 _CC_PVERSION=0x220A0000
        export LDFLAGS=-Wl,"compat=pm3"
        export CFLAGS='-Wc,"target(OSV2R10)"'
        export CXXFLAGS='-Wc,"target(OSV2R10)"'
        export RELEASE_CFLAGS='-2'
        export RELEASE_CXXFLAGS='-2'
        ;;
    *)
        >&2 echo "$me: unrecognized platform \"$platform\" (use --help for help)"
        exit 1;;
esac


# Tweak flags

if test $release -eq 1
then
    if test "$RELEASE_CFLAGS" = ""
    then
        case $CC in
            gcc|*/gcc|*-gcc-*|*/*-gcc-*)
                RELEASE_CFLAGS=-O3
                ;;
        esac
    fi
    if test "$RELEASE_CFLAGS" != ""
    then
        CFLAGS="$CFLAGS $RELEASE_CFLAGS"
    fi
    export CFLAGS
    if test "$RELEASE_CXXFLAGS" = ""
    then
        case $CXX in
            g++|*/g++|*-g++-*|*/*-g++-*)
                RELEASE_CXXFLAGS=-O
                ;;
        esac
    fi
    if test "$RELEASE_CXXFLAGS" != ""
    then
        CXXFLAGS="$CXXFLAGS $RELEASE_CXXFLAGS"
    fi
    export CXXFLAGS
fi

if test $debug -eq 1
then
    if test "$DEBUG_CFLAGS" != ""
    then
        CFLAGS="$CFLAGS $DEBUG_CFLAGS"
    fi
    export CFLAGS
    if test "$DEBUG_CXXFLAGS" != ""
    then
        CXXFLAGS="$CXXFLAGS $DEBUG_CXXFLAGS"
    fi
    export CXXFLAGS
    if test "$DEBUG_LDFLAGS" != ""
    then
        LDFLAGS="$LDFLAGS $DEBUG_LDFLAGS"
    fi
    export LDFLAGS
fi

# Run configure

echo "Running ./configure $OPTS $@ for $THE_OS using $THE_COMP compiler"
echo
$configure $OPTS $@
echo
echo If the result of the above commands looks okay to you, go to the directory
echo source in the ICU distribution to build ICU. Please remember that ICU needs
echo GNU make to build properly...