#!/bin/sh
## -*-sh-*-
#set -x
# BEGIN of icu-config-top
#******************************************************************************
#   Copyright (C) 1999-2004, International Business Machines
#   Corporation and others.  All Rights Reserved.
#******************************************************************************
# This script is designed to aid configuration of ICU.

### END of icu-config-top

exec_prefix=`pkg-config --variable=exec_prefix icu`
execprefix=$exec_prefix
prefix=`pkg-config --variable=prefix icu`


loaddefs()
{

libdir=`pkg-config --variable=libdir icu`
bindir=`pkg-config --variable=bindir icu`
datadir=`pkg-config --variable=datadir icu`
bindir=`pkg-config --variable=sbindir icu`

# about the ICU version
VERSION=`pkg-config --modversion icu`
UNICODE_VERSION=`pkg-config --variable=UNICODE_VERSION icu`

# for icu-config to test with
ICULIBS_COMMON_LIB_NAME=`pkg-config --variable=ICULIBS_COMMON_LIB_NAME icu`

# Proper echo newline handling is needed in icu-config
ECHO_N="-n"
ECHO_C=""

LDLIBRARYPATH_ENVVAR="LD_LIBRARY_PATH"

pkgdatadir=`pkg-config --variable=pkgdatadir icu`
pkglibdir=`pkg-config --variable=pkglibdir icu`

CC="gcc"
CXX="g++"
# use a consistent INSTALL 
INSTALL="${SHELL} ${pkgdatadir}/install-sh -c"
MKINSTALLDIRS="${SHELL} ${pkgdatadir}/mkinstalldirs"
PKGDATA_MODE="dll"

## End Linux-specific setup

## -*-sh-*-
## BEGIN of icu-config-bottom.
## Copyright (c) 2002-2008, International Business Machines Corporation and
## others. All Rights Reserved.

ICUUC_FILE=${libdir}/${ICULIBS_COMMON_LIB_NAME}
    
}

## The actual code of icu-config goes here.

ME=`basename "$0"`

allflags()
{
    echo "  --bindir               Print binary directory path (bin)"
    echo "  --cc                   Print C compiler used [CC]"
    echo "  --cflags               Print C compiler flags [CFLAGS]"
    echo "  --cflags-dynamic       Print additional C flags for"
    echo "                             building shared libraries."
    echo "  --cppflags             Print C Preprocessor flags [CPPFLAGS]"
    echo "  --cppflags-dynamic     Print additional C Preprocessor flags for"
    echo "                             building shared libraries."
    echo "  --cppflags-searchpath  Print only -I include directives  (-Iinclude)"
    echo "  --cxx                  Print C++ compiler used [CXX]"
    echo "  --cxxflags             Print C++ compiler flags [CXXFLAGS]"
    echo "  --cxxflags-dynamic     Print additional C++ flags for"
    echo "                             building shared libraries."
    echo "  --detect-prefix        Attempt to detect prefix based on PATH"
    echo "  --exec-prefix          Print prefix for executables (/bin)"
    echo "  --exists               Return with 0 status if ICU exists else fail"
    echo "  --help, -?, --usage    Print this message"
    echo "  --icudata              Print shortname of ICU data file (icudt21l)"
    echo "  --icudata-install-dir  Print path to install data to - use as --install option to pkgdata(1)"
    echo "  --icudata-mode         Print default ICU pkgdata mode (dll) - use as --mode option to pkgdata(1)."
    echo "  --icudatadir           Print path to packaged archive data. Can set as [ICU_DATA]"
    echo "  --invoke               Print commands to invoke an ICU program"
    echo "  --invoke=<prog>        Print commands to invoke an ICU program named <prog> (ex: genrb)" 
    echo "  --ldflags              Print -L search path and -l libraries to link with ICU [LDFLAGS].  This is for the data, uc (common), and i18n libraries only.  "
    echo "  --ldflags-layout       Print ICU layout engine link directive. Use in addition to --ldflags"
    echo "  --ldflags-libsonly     Same as --ldflags, but only the -l directives"
    echo "  --ldflags-searchpath   Print only -L (search path) directive"
    echo "  --ldflags-system       Print only system libs ICU links with (-lpthread, -lm)"
    echo "  --ldflags-icuio        Print ICU icuio link directive. Use in addition to --ldflags "
    echo "  --ldflags-obsolete     Print ICU obsolete link directive. Use in addition to --ldflags. (requires icuapps/obsolete to be built and installed.) "
    echo "  --mandir               Print manpage (man) path"
    echo "  --prefix               Print PREFIX to icu install (/usr/local)"
    echo "  --prefix=XXX           Set prefix to XXX for remainder of command"
    echo "  --sbindir              Print system binary path (sbin) "
    echo "  --shared-datadir       Print shared data (share) path. This is NOT the ICU data dir."
    echo "  --shlib-c              Print the command to compile and build C shared libraries with ICU"
    echo "  --shlib-cc             Print the command to compile and build C++ shared libraries with ICU"
    echo "  --sysconfdir           Print system config (etc) path"
    echo "  --unicode-version      Print version of Unicode data used in ICU ($UNICODE_VERSION)"
    echo "  --version              Print ICU version ($VERSION)"
    echo "  --incfile              Print path to Makefile.inc"
    echo "  --incpkgdatafile       Print path to pkgdata.inc (for -O option of pkgdata)"
    echo "  --install              Print path to install-sh"
    echo "  --mkinstalldirs              Print path to mkinstalldirs"
}

## Print the normal usage message
shortusage()
{
    echo "usage: ${ME} " `allflags | cut -c-25 | sed -e 's%.*%[ & ]%'`
}


usage()
{
    echo "${ME}: icu-config: ICU configuration helper script"
    echo
    echo "The most commonly used options will be --cflags, --cxxflags, --cppflags, and --ldflags."
    echo 'Example (in make):   CPFLAGS=$(shell icu-config --cppflags)'
    echo '                     LDFLAGS=$(shell icu-config --ldflags)'
    echo "                     (etc).."
    echo
    echo "Usage:"
    allflags

    echo 
    echo " [Brackets] show MAKE variable equivalents,  (parenthesis) show example output"
    echo
    echo "Copyright (c) 2002, International Business Machines Corporation and others. All Rights Reserved."
}

## Check the sanity of current variables
sanity()
{
    if [ ! -f ${ICUUC_FILE} ] && [ ${IGNORE_ICUUC_FILE_CHECK} = "no" ];
    then
	echo "### $ME: Can't find ${ICUUC_FILE} - ICU prefix is wrong."  1>&2
	echo "###      Try the --prefix= option " 1>&2
	echo "###      or --detect-prefix"
	echo "### $ME: Exitting." 1>&2
	exit 2
    fi
}

## Main starts here.

if [ $# -lt 1 ]; then
    shortusage
    exit 1
fi

# For certain options (e.g. --detect-prefix) don't check for icuuc library file.
IGNORE_ICUUC_FILE_CHECK="no";
case "$1" in 
*prefix*)
    IGNORE_ICUUC_FILE_CHECK="yes"
    ;;
esac

# Load our variables from autoconf
# ALWAYS load twice because of dependencies
loaddefs
loaddefs

if [ $1 = "--selfcheck" ];
then
	echo "passed"
	exit 
	# EXIT for self check
fi

sanity

while [ $# -gt 0 ];
do
    arg="$1"
    var=`echo $arg | sed -e 's/^[^=]*=//'`
#    echo "### processing $arg" 1>&2
    case "$arg" in

        # undocumented.
	--debug)
	    set -x
	    ;;

    --so)
        pkg-config --variable=SO icu
        ;;

	--bindir)
	    echo $bindir
	    ;;

	--libdir)
	    echo $libdir
	    ;;

	--exists)
	    sanity
	    ;;

	--sbindir)
	    echo $sbindir
	    ;;

	--mkinstalldirs)
	    echo ${MKINSTALLDIRS}
	    ;;

	--install)
	    echo ${INSTALL}
	    ;;

	--invoke=*)
	    QUOT="\""
            CMD="${var}"

            # If it's not a locally executable command (1st choice) then 
            # search for it in the ICU directories. 
            if [ ! -x ${CMD} ]; then
                if [ -x ${bindir}/${var} ]; then
                    CMD="${bindir}/${var}"
                fi
                if [ -x ${sbindir}/${var} ]; then
                    CMD="${sbindir}/${var}"
                fi
            fi

	    echo "env ${QUOT}${LDLIBRARYPATH_ENVVAR}=${libdir}:"'${'"${LDLIBRARYPATH_ENVVAR}"'}'${QUOT} ${CMD}
	    ;;

	--invoke)
	    QUOT="\""
	    echo "env ${QUOT}${LDLIBRARYPATH_ENVVAR}=${libdir}:"'${'"${LDLIBRARYPATH_ENVVAR}"'}'${QUOT}
	    ;;

	--cflags)
	    pkg-config --variable=CFLAGS icu
	    ;;
	    
	--cc)
	    echo $ECHO_N "${CC}${ECHO_C} "
	    ;;
	    
	--cxx)
	    echo $ECHO_N "${CXX}${ECHO_C} "
	    ;;

	--cxxflags)
	    pkg-config --variable=CXXFLAGS icu
	    ;;

	--cppflags)
	    # Don't echo the -I. - it's unneeded.
	    CPPFLAGS=`pkg-config --variable=CPPFLAGS icu`
	    echo $ECHO_N "${CPPFLAGS}${ECHO_C} " | sed -e 's/-I. //'
	    ;;

	--cppflags-searchpath)
	    echo $ECHO_N "-I${prefix}/include${ECHO_C} "
	    ;;

	--cppflags-dynamic)
	    pkg-config --variable=SHAREDLIBCPPFLAGS icu
	    ;;

	--cxxflags-dynamic)
	    pkg-config --variable=SHAREDLIBCXXFLAGS icu
	    ;;

	--cflags-dynamic)
	    pkg-config --variable=SHAREDLIBCFLAGS icu
	    ;;

	--ldflags-system)
	    pkg-config --variable=ICULIBS_SYSTEMLIBS icu
	    ;;

	--ldflags)
	    pkg-config --libs icu
	    ;;

	--ldflags-libsonly)
	    pkg-config --variable=ICULIBS_LIBSONLY icu
	    ;;

	--ldflags-icuio)
	    pkg-config --variable=ICULIBS_ICUIO icu
	    ;;

	--ldflags-obsolete)
	    pkg-config --variable=ICULIBS_OBSOLETE icu
	    ;;

	--ldflags-toolutil)
	    pkg-config --variable=ICULIBS_TOOLUTIL icu
	    ;;

	--ldflags-layout)
	    pkg-config --variable=ICULIBS_LAYOUT icu
	    ;;

	--ldflags-searchpath)
	    echo $ECHO_N "-L${libdir}${ECHO_C} "
	    ;;

	--detect-prefix)
	    HERE=`echo $0 | sed -e "s/$ME//g"`
	    if [ -f $HERE/../lib/${ICULIBS_COMMON_LIB_NAME} ]; then
		prefix=$HERE/..
		echo "## Using --prefix=${prefix}" 1>&2
	    fi
	    loaddefs
	    loaddefs
	    ;;

	--exec-prefix)
	    echo $exec_prefix
	    ;;

	--prefix)
	    echo $prefix
	    ;;

	--prefix=*)
	    prefix=$var
	    loaddefs
	    loaddefs
	    ;;

	--sysconfdir)
	    pkg-config --variable=sysconfdir icu
	    ;;

	--mandir)
	    pkg-config --variable=mandir icu
	    ;;

	--shared-datadir)
	    echo $ECHO_N "${datadir}${ECHO_C} "
	    ;;

        --incfile)
	    echo $ECHO_N "${pkglibdir}/Makefile.inc${ECHO_C} "
	    ;;

	--incpkgdatafile)
	    echo $ECHO_N "${pkglibdir}/pkgdata.inc${ECHO_C} "
	    ;;

	--icudata)
	    pkg-config --variable=ICUDATA_NAME icu
	    ;;

	--icudata-mode)
	    echo $ECHO_N "${PKGDATA_MODE}${ECHO_C} "
	    ;;

	--icudata-install-dir)
            pkg-config --variable=ICUPKGDATA_DIR icu
	    ;;
	    
	--icudatadir)
	    pkg-config --variable=ICUDATA_DIR icu
	    ;;

	--shlib-c)
	    pkg-config --variable=SHLIB_c icu
	    ;;

	--shlib-cc)
	    pkg-config --variable=SHLIB_cc icu
	    ;;

	--version)
        echo $ECHO_N $VERSION
        ;;

    --unicode-version)
        echo $ECHO_N $UNICODE_VERSION
        ;;

	--help)
	    usage
	    exit 0
	    ;;

	--usage)
	    usage
	    exit 0
	    ;;

	-?)
	    usage
	    exit 0
	    ;;

        *)
	    echo ${ME}: ERROR Unknown Option $arg 1>&2
            echo 1>&2
            shortusage 1>&2
	    echo "### $ME: Exitting." 1>&2
            exit 1;
            ;;
    esac
    shift
    
    # Reset the ignore icuuc file check flag
    if [ $IGNORE_ICUUC_FILE_CHECK = "yes" ]; then
        IGNORE_ICUUC_FILE_CHECK="no"
        sanity
    fi
done
echo
# Check once before we quit (will check last used prefix)
sanity
## END of icu-config-bottom

exit 0