#!/bin/sh
# Copyright (c) 1999-2006, 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:

    AIX                 Use the IBM Visual Age xlc_r/xlC_r compilers on AIX
    AIX/GCC             Use the GNU gcc/g++ compilers on AIX
    BeOS                Use the GNU gcc/g++ compilers on BeOS
    Cygwin              Use the GNU gcc/g++ compilers on Cygwin
    Cygwin/MSVC         Use the Microsoft Visual C++ compiler on Cygwin
    Cygwin/ICL          Use the Intel C++ compiler on Cygwin
    FreeBSD             Use the GNU gcc/g++ compilers on Free BSD
    HP-UX/ACC           Use the HP ANSI C/Advanced C++ compilers on HP-UX 11
    Linux               Use the GNU gcc/g++ compilers on Linux
    Linux/ECC           Use the Intel ECC compiler on Linux
    Linux/ICC           Use the Intel ICC compiler on Linux
    Linux/VA            Use the IBM Visual Age compiler on Power PC Linux
    MacOSX              Use the GNU gcc/g++ compilers on MacOS X (Darwin)
    QNX                 Use the QNX QCC compiler on QNX/Neutrino
    Solaris             Use the Sun cc/CC compilers on Solaris
    Solaris/GCC         Use the GNU gcc/g++ compilers on Solaris
    SolarisX86          Use the Sun cc/CC compilers on Solaris x86
    TRU64V5.1/CXX       Use the Compaq cxx compiler on Tru64 (OSF)
    zOS                 Use the IBM cxx compiler on z/OS (os/390)
    zOSV1R2             Use the IBM cxx compiler for z/OS 1.2
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
    AIX)
        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"
        ;;
    AIX/GCC)
        THE_OS=AIX
        THE_COMP="the GNU C++"
        CC=gcc; export CC
        CXX=g++; export CXX
        ;;
    Solaris)
        THE_OS=SOLARIS
        THE_COMP="Sun's CC"
        CC=`which cc`; export CC
        CXX=`which CC`; export CXX
        RELEASE_CFLAGS="-xO4 -xlibmil"
        RELEASE_CXXFLAGS="-O4 -xlibmil"
        ;;
    Solaris/GCC)
        THE_OS=SOLARIS
        THE_COMP="the GNU C++"
        CC=gcc; export CC
        CXX=g++; export CXX
        RELEASE_CFLAGS=-O1
        RELEASE_CXXFLAGS=-O3
        ;;
    SolarisX86)
        THE_OS="SOLARIS X86"
        THE_COMP="Sun's CC"
        CC=`which cc`; export CC
        CXX=`which CC`; export CXX
        LDFLAGS="-L -lCrun";export LDFLAGS
        RELEASE_CFLAGS=-xO3
        RELEASE_CXXFLAGS=-O3
        ;;
    HP-UX/ACC)
        THE_OS="HP-UX 11"
        THE_COMP="aCC"
        CC=cc; export CC
        CXX=aCC; export CXX
        RELEASE_CFLAGS='+O2 +Ofltacc'
        RELEASE_CXXFLAGS='+O2 +Ofltacc'
        ;;
    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 9.0"
        CC=`which icc`; export CC
        CXX=`which icpc`; export CXX
        RELEASE_CFLAGS='-O'
        RELEASE_CXXFLAGS='-O'
        ;;
    Linux/VA)
        THE_OS="Linux"
        THE_COMP="IBM Visual Age C++ Compiler"
        CC=`which xlc_r`; export CC
        CXX=`which xlC_r`; export CXX
        RELEASE_CFLAGS="-O2 -qmaxmem=-1"
        RELEASE_CXXFLAGS="-O2 -qmaxmem=-1"
        ;;
    Linux*)
        THE_OS="Linux"
        THE_COMP="the GNU C++"
        CC=gcc; export CC
        CXX=g++; export CXX
        ;;
    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 /Op'
        RELEASE_CXXFLAGS='/O2 /Ob2 /Op'
        DEBUG_CFLAGS='/Zi'
        DEBUG_CXXFLAGS='/Zi'
        DEBUG_LDFLAGS='/DEBUG'
        ;;
    Cygwin/ICL)
        THE_OS="Windows with Cygwin"
        THE_COMP="Intel C++"
        CC=icl; export CC
        CXX=icl; export CXX
        # The Intel compiler has optimization bugs. So we disable optimization.
        RELEASE_CFLAGS='/Od'
        RELEASE_CXXFLAGS='/Od'
        DEBUG_CFLAGS='/Zi'
        DEBUG_CXXFLAGS='/Zi'
        DEBUG_LDFLAGS='/DEBUG'
        ;;
    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
        ;;
    TRU64V5.1/CXX)
        THE_OS="OSF1"
        THE_COMP="Compaq cxx"
        CC=cc; export CC
        CXX=cxx; 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="$OPTIMIZATIONS"
        ;;
    zOS)
        THE_OS="z/OS (OS/390)"
        THE_COMP="z/OS C/C++"
        CC=cc; export CC
        CXX=cxx; export CXX
        export RELEASE_CFLAGS="-2 -Wc,'inline(auto,noreport,500,2500)'"
        export RELEASE_CXXFLAGS="-2 -Wc,'inline(auto,noreport,300,2500)'"
        ;;
    zOSV1R2)
        THE_OS="z/OS 1.2"
        THE_COMP="z/OS 1.2 C/C++"
        CC=cc; export CC
        CXX=cxx; export CXX
        export COMPILE_LINK_ENVVAR='_CXX_CVERSION=0x41020000 _C89_CVERSION=0x41020000 _CC_CVERSION=0x41020000 _CXX_PVERSION=0x41020000 _C89_PVERSION=0x41020000 _CC_PVERSION=0x41020000'
        export _CXX_CVERSION=0x41020000 _C89_CVERSION=0x41020000 _CC_CVERSION=0x41020000 _CXX_PVERSION=0x41020000 _C89_PVERSION=0x41020000 _CC_PVERSION=0x41020000
        export LDFLAGS="-Wl,'compat=pm3'"
        export CFLAGS="-Wc,'target(zOSV1R2)'"
        export CXXFLAGS="-Wc,'target(zOSV1R2)'"
        export RELEASE_CFLAGS="-2 -Wc,'inline(auto,noreport,500,2500)'"
        export RELEASE_CXXFLAGS="-2 -Wc,'inline(auto,noreport,300,2500)'"
        ;;
    *)
        >&2 echo "$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...