tip/test/configure2

#!/bin/sh


# some utility functions
isplatform()
{
    for p in $PLATFORM
    do
        if [ "$p" = "$1" ]; then
            return 0
        fi
    done
    return 1
}
notisplatform()
{
    for p in $PLATFORM
    do
        if [ "$p" = "$1" ]; then
            return 1
        fi
    done
    return 0
}
istoolchain()
{
    for t in $TOOLCHAIN
    do
        if [ "$t" = "$1" ]; then
            return 0
        fi
    done
    return 1
}
notistoolchain()
{
    for t in $TOOLCHAIN
    do
        if [ "$t" = "$1" ]; then
            return 1
        fi
    done
    return 0
}

# clean abort
abort_configure()
{
    rm -Rf "$TEMP_DIR"
    exit 1
}

# Test for availability of pkg-config
PKG_CONFIG=`command -v pkg-config`
: ${PKG_CONFIG:="false"}

# Simple uname based platform detection
# $PLATFORM is used for platform dependent dependency selection
OS=`uname -s`
OS_VERSION=`uname -r`
ARCH=`uname -m`
printf "detect platform... "
if [ "$OS" = "SunOS" ]; then
    PLATFORM="solaris sunos unix svr4"
elif [ "$OS" = "Linux" ]; then
    PLATFORM="linux unix"
elif [ "$OS" = "FreeBSD" ]; then
    PLATFORM="freebsd bsd unix"
elif [ "$OS" = "OpenBSD" ]; then
    PLATFORM="openbsd bsd unix"
elif [ "$OS" = "NetBSD" ]; then
    PLATFORM="netbsd bsd unix"
elif [ "$OS" = "Darwin" ]; then
    PLATFORM="macos osx bsd unix"
elif echo "$OS" | grep -i "MINGW" > /dev/null; then
    PLATFORM="windows mingw"
fi
: ${PLATFORM:="unix"}

PLATFORM_NAME=`echo "$PLATFORM" | cut -f1 -d' ' -`
echo "$PLATFORM_NAME"


# help text
printhelp()
{
    echo "Usage: $0 [OPTIONS]..."
    if [ $has_config_vars__ -eq 1 ] ; then
        echo
        echo "Configuration:"
    fi
if true \
      ; then
    :
    if [ -z "$prefix__described__" ] ; then
        prefix__described__=1
        cat << '__EOF__'
  --prefix                path prefix for architecture-independent files 
                          [`pwd`/work]
__EOF__
    fi
    if [ -z "$exec_prefix__described__" ] ; then
        exec_prefix__described__=1
        cat << '__EOF__'
  --exec-prefix           path prefix for architecture-dependent files [PREFIX]
__EOF__
    fi
    if [ -z "$libdir__described__" ] ; then
        libdir__described__=1
        cat << '__EOF__'
  --libdir                object code libraries [EPREFIX/lib]
__EOF__
    fi
    if [ -z "$datarootdir__described__" ] ; then
        datarootdir__described__=1
        cat << '__EOF__'
  --datarootdir           read-only architecture-independent data root 
                          [PREFIX/share]
__EOF__
    fi
    if [ -z "$datadir__described__" ] ; then
        datadir__described__=1
        cat << '__EOF__'
  --datadir               read-only architecture-independent data [DATAROOTDIR]
__EOF__
    fi
    if [ -z "$localstatedir__described__" ] ; then
        localstatedir__described__=1
        cat << '__EOF__'
  --localstatedir         modifiable single-machine data [PREFIX/var]
__EOF__
    fi
    if [ -z "$libdatadir__described__" ] ; then
        libdatadir__described__=1
        cat << '__EOF__'
  --libdatadir            miscellaneous files for libraries [PREFIX/libdata]
__EOF__
    fi
    if [ -z "$TOOLKIT_HOME__described__" ] ; then
        TOOLKIT_HOME__described__=1
        cat << '__EOF__'
  --toolkit-home          the location of the toolkit installation [/usr]
__EOF__
    fi
fi
    cat << '__EOF__'

Build Types:
  --debug                 add extra compile flags for debug builds
  --release               add extra compile flags for release builds

Options:
  --toolkit=(gtk3|cli|gtk2|wpf)
                          The toolkit to use for the UI.

Optional Features:
  --disable-db            Needlessly adds a completely useless SQLite database 
                          by default.
                          Here another line to test tabs and line

                          breaks.
  --enable-gui

__EOF__
    abort_configure
}

# create temporary directory
TEMP_DIR=".tmp-`uname -n`"
rm -Rf "$TEMP_DIR"
if mkdir -p "$TEMP_DIR"; then
    :
else
    echo "Cannot create tmp dir $TEMP_DIR"
    echo "Abort"
    exit 1
fi
touch "$TEMP_DIR/options"
touch "$TEMP_DIR/features"

# config variables
has_config_vars__=0
if true \
      ; then
    :
    if [ -z "$prefix__initialized__" ] ; then
        has_config_vars__=1
        prefix__initialized__=1
        prefix='`pwd`/work'
    fi
    if [ -z "$exec_prefix__initialized__" ] ; then
        has_config_vars__=1
        exec_prefix__initialized__=1
        exec_prefix=''
    fi
    if [ -z "$libdir__initialized__" ] ; then
        has_config_vars__=1
        libdir__initialized__=1
        libdir=''
    fi
    if [ -z "$datarootdir__initialized__" ] ; then
        has_config_vars__=1
        datarootdir__initialized__=1
        datarootdir=''
    fi
    if [ -z "$datadir__initialized__" ] ; then
        has_config_vars__=1
        datadir__initialized__=1
        datadir=''
    fi
    if [ -z "$localstatedir__initialized__" ] ; then
        has_config_vars__=1
        localstatedir__initialized__=1
        localstatedir='/var'
    fi
    if [ -z "$libdatadir__initialized__" ] ; then
        has_config_vars__=1
        libdatadir__initialized__=1
        libdatadir='$prefix/libdata'
    fi
    if [ -z "$SRCDIR__initialized__" ] ; then
        has_config_vars__=1
        SRCDIR__initialized__=1
        SRCDIR=`pwd`
    fi
    if [ -z "$TOOLKIT_HOME__initialized__" ] ; then
        has_config_vars__=1
        TOOLKIT_HOME__initialized__=1
        TOOLKIT_HOME='/usr'
    fi
fi

# features
FEATURE_DB=auto

#
# parse arguments
#
BUILD_TYPE="default"
for ARG in "$@"
do
    case "$ARG" in
        "--prefix="*) prefix=${ARG#--prefix=} ;;
        "--exec-prefix="*) exec_prefix=${ARG#--exec-prefix=} ;;
        "--libdir="*) libdir=${ARG#--libdir=} ;;
        "--datarootdir="*) datarootdir=${ARG#--datarootdir=} ;;
        "--datadir="*) datadir=${ARG#--datadir=} ;;
        "--localstatedir="*) localstatedir=${ARG#--localstatedir=} ;;
        "--libdatadir="*) libdatadir=${ARG#--libdatadir=} ;;
        "--toolkit-home="*) TOOLKIT_HOME=${ARG#--toolkit-home=} ;;
        "--help"*) printhelp ;;
        "--debug") BUILD_TYPE="debug" ;;
        "--release") BUILD_TYPE="release" ;;
        "--toolkit="*) OPT_TOOLKIT=${ARG#--toolkit=} ;;
        "--toolkit") echo "option '$ARG' needs a value:"; echo "  $ARG=(gtk3|cli|gtk2|wpf)"; abort_configure ;;
        "--enable-db") FEATURE_DB=on ;;
        "--disable-db") unset FEATURE_DB ;;
        "--enable-gui") FEATURE_GUI=on ;;
        "--disable-gui") unset FEATURE_GUI ;;
        "-"*) echo "unknown option: $ARG"; abort_configure ;;
    esac
done

# toolchain detection utilities
. make/toolchain.sh

# check languages
lang_c=
lang_cpp=
if detect_c_compiler ; then
    lang_c=1
fi


# set defaults for dir variables
: ${exec_prefix:="$prefix"}
: ${bindir:='${exec_prefix}/bin'}
: ${sbindir:='${exec_prefix}/sbin'}
: ${libdir:='${exec_prefix}/lib'}
: ${libexecdir:='${exec_prefix}/libexec'}
: ${datarootdir:='${prefix}/share'}
: ${datadir:='${datarootdir}'}
: ${sharedstatedir:='${prefix}/com'}
if [ -z "$sysconfdir" ]; then
    if [ "$prefix" = '/usr' ]; then
        sysconfdir='/etc'
    else
        sysconfdir='${prefix}/etc'
    fi
fi
if [ -z "$localstatedir" ]; then
    if [ "$prefix" = '/usr' ]; then
        localstatedir='/var'
    else
        localstatedir='${prefix}/var'
    fi
fi
if [ -z "$runstatedir" ]; then
    if [ "$prefix" = '/usr' ]; then
        runstatedir='/var/run'
    else
        runstatedir='${prefix}/var'
    fi
fi
: ${includedir:='${prefix}/include'}
: ${infodir:='${datarootdir}/info'}
: ${mandir:='${datarootdir}/man'}
: ${localedir:='${datarootdir}/locale'}


# check if a config.site exists and load it
CONFIG_SITE_OK=0
if [ -n "$CONFIG_SITE" ]; then
    # CONFIG_SITE may contain space separated file names
    for cs in $CONFIG_SITE; do
        printf "loading defaults from $cs... "
        if [ -f "$cs" ]; then
            . "$cs"
            echo ok
            CONFIG_SITE_OK=1
            break
        else
            echo "not found"
        fi
    done
elif [ -f "$prefix/share/config.site" ]; then
    printf "loading site defaults... "
    . "$prefix/share/config.site"
    echo ok
    CONFIG_SITE_OK=1
elif [ -f "$prefix/etc/config.site" ]; then
    printf "loading site defaults... "
    . "$prefix/etc/config.site"
    echo ok
    CONFIG_SITE_OK=1
fi

if [ $CONFIG_SITE_OK -eq 0 ]; then
    # try to detect the correct libdir on our own, except it was changed by the user
    if [ "$libdir" = '${exec_prefix}/lib' ] ; then
        if [ "$TOOLCHAIN_WSIZE" = "64" ] ; then
            if [ "$OS" = "SunOS" ]; then
                [ -d "${exec_prefix}/lib/64" ] && libdir='${exec_prefix}/lib/64'
            else
                [ -d "${exec_prefix}/lib64" ] && libdir='${exec_prefix}/lib64'
            fi
        elif [ "$TOOLCHAIN_WSIZE" = "32" ] ; then
            if [ "$OS" = "SunOS" ]; then
                [ -d "${exec_prefix}/lib/32" ] && libdir='${exec_prefix}/lib/32'
            else
                [ -d "${exec_prefix}/lib32" ] && libdir='${exec_prefix}/lib32'
            fi
        fi
    fi
fi


# generate vars.mk
if [ $has_config_vars__ -eq 1 ]; then
    echo '# configuration' > "$TEMP_DIR/vars.mk"
    echo "prefix=$prefix" >> "$TEMP_DIR/vars.mk"
    echo "exec_prefix=$exec_prefix" >> "$TEMP_DIR/vars.mk"
    echo "libdir=$libdir" >> "$TEMP_DIR/vars.mk"
    echo "datarootdir=$datarootdir" >> "$TEMP_DIR/vars.mk"
    echo "datadir=$datadir" >> "$TEMP_DIR/vars.mk"
    echo "localstatedir=$localstatedir" >> "$TEMP_DIR/vars.mk"
    echo "libdatadir=$libdatadir" >> "$TEMP_DIR/vars.mk"
    echo "SRCDIR=$SRCDIR" >> "$TEMP_DIR/vars.mk"
    echo "TOOLKIT_HOME=$TOOLKIT_HOME" >> "$TEMP_DIR/vars.mk"
    echo >> "$TEMP_DIR/vars.mk"
fi

#
# DEPENDENCIES
#

# create buffer for make variables required by dependencies
echo > "$TEMP_DIR/make.mk"

test_pkg_config()
{
    if "$PKG_CONFIG" --exists "$1" ; then :
    else return 1 ; fi
    if [ -z "$2" ] || "$PKG_CONFIG" --atleast-version="$2" "$1" ; then :
    else return 1 ; fi
    if [ -z "$3" ] || "$PKG_CONFIG" --exact-version="$3" "$1" ; then :
    else return 1 ; fi
    if [ -z "$4" ] || "$PKG_CONFIG" --max-version="$4" "$1" ; then :
    else return 1 ; fi
    return 0
}

print_check_msg()
{
    if [ -z "$1" ]; then
        shift
        printf "$@"
    fi
}

dependency_error_qt4()
{
    print_check_msg "$dep_checked_qt4" "checking for qt4... "
    # dependency qt4
    while true
    do
        if which qmake-qt4 > /dev/null 2>&1 ; then
            :
        else
            break
        fi
        print_check_msg "$dep_checked_qt4" "yes\n"
        dep_checked_qt4=1
        return 1
    done

    print_check_msg "$dep_checked_qt4" "no\n"
    dep_checked_qt4=1
    return 0
}
dependency_error_curl()
{
    print_check_msg "$dep_checked_curl" "checking for curl... "
    # dependency curl platform="windows"
    while true
    do
        if notisplatform "windows"; then
            break
        fi
        TEMP_CFLAGS="$TEMP_CFLAGS -I/mingw/include"
        TEMP_LDFLAGS="$TEMP_LDFLAGS -lcurl"
        print_check_msg "$dep_checked_curl" "yes\n"
        dep_checked_curl=1
        return 1
    done

    # dependency curl platform="macos"
    while true
    do
        if notisplatform "macos"; then
            break
        fi
        if tmp_flags=`curl-config --cflags` ; then
            TEMP_CFLAGS="$TEMP_CFLAGS $tmp_flags"
        else
            break
        fi
        if tmp_flags=`curl-config --ldflags` ; then
            TEMP_LDFLAGS="$TEMP_LDFLAGS $tmp_flags"
        else
            break
        fi
        print_check_msg "$dep_checked_curl" "yes\n"
        dep_checked_curl=1
        return 1
    done

    # dependency curl
    while true
    do
        if [ -z "$PKG_CONFIG" ]; then
            break
        fi
        if test_pkg_config "libcurl" "" "" "" ; then
            TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags libcurl`"
            TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs libcurl`"
        else
            break
        fi
        print_check_msg "$dep_checked_curl" "yes\n"
        dep_checked_curl=1
        return 1
    done

    print_check_msg "$dep_checked_curl" "no\n"
    dep_checked_curl=1
    return 0
}
dependency_error_gtk2()
{
    print_check_msg "$dep_checked_gtk2" "checking for gtk2... "
    # dependency gtk2
    while true
    do
        if [ -z "$PKG_CONFIG" ]; then
            break
        fi
        if test_pkg_config "gtk+-2.0" "" "" "" ; then
            TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags gtk+-2.0`"
            TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs gtk+-2.0`"
        else
            break
        fi
        print_check_msg "$dep_checked_gtk2" "yes\n"
        dep_checked_gtk2=1
        return 1
    done

    print_check_msg "$dep_checked_gtk2" "no\n"
    dep_checked_gtk2=1
    return 0
}
dependency_error_sqlite()
{
    print_check_msg "$dep_checked_sqlite" "checking for sqlite... "
    # dependency sqlite
    while true
    do
        if [ -z "$PKG_CONFIG" ]; then
            break
        fi
        if test_pkg_config "sqlite3" "" "" "" ; then
            TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags sqlite3`"
            TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs sqlite3`"
        else
            break
        fi
        print_check_msg "$dep_checked_sqlite" "yes\n"
        dep_checked_sqlite=1
        return 1
    done

    print_check_msg "$dep_checked_sqlite" "no\n"
    dep_checked_sqlite=1
    return 0
}
dependency_error_test()
{
    print_check_msg "$dep_checked_test" "checking for test... "
    # dependency test platform="bsd"
    while true
    do
        if notisplatform "bsd"; then
            break
        fi
        if isplatform "macos" || istoolchain "macos"; then
            break
        fi
        TEMP_CFLAGS="$TEMP_CFLAGS -DBSD"
        print_check_msg "$dep_checked_test" "yes\n"
        dep_checked_test=1
        return 1
    done

    # dependency test
    while true
    do
        TEMP_CFLAGS="$TEMP_CFLAGS -DTEST"
        print_check_msg "$dep_checked_test" "yes\n"
        dep_checked_test=1
        return 1
    done

    print_check_msg "$dep_checked_test" "no\n"
    dep_checked_test=1
    return 0
}
dependency_error_gtk3()
{
    print_check_msg "$dep_checked_gtk3" "checking for gtk3... "
    # dependency gtk3
    while true
    do
        if [ -z "$PKG_CONFIG" ]; then
            break
        fi
        if test_pkg_config "gtk+-5.0" "" "" "" ; then
            TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags gtk+-5.0`"
            TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs gtk+-5.0`"
        else
            break
        fi
        print_check_msg "$dep_checked_gtk3" "yes\n"
        dep_checked_gtk3=1
        return 1
    done

    print_check_msg "$dep_checked_gtk3" "no\n"
    dep_checked_gtk3=1
    return 0
}
dependency_error_deptest()
{
    print_check_msg "$dep_checked_deptest" "checking for deptest... "
    # dependency deptest
    while true
    do
        TEMP_CFLAGS="$TEMP_CFLAGS -DDEPTEST"
        print_check_msg "$dep_checked_deptest" "yes\n"
        dep_checked_deptest=1
        return 1
    done

    print_check_msg "$dep_checked_deptest" "no\n"
    dep_checked_deptest=1
    return 0
}
dependency_error_libxml2()
{
    print_check_msg "$dep_checked_libxml2" "checking for libxml2... "
    # dependency libxml2
    while true
    do
        if [ -z "$PKG_CONFIG" ]; then
            break
        fi
        if test_pkg_config "libxml-2.0" "2.8" "" "" ; then
            TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags libxml-2.0`"
            TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs libxml-2.0`"
        else
            break
        fi
        cat >> $TEMP_DIR/make.mk << __EOF__
# Dependency: libxml2
xml = libxml2
__EOF__
        print_check_msg "$dep_checked_libxml2" "yes\n"
        dep_checked_libxml2=1
        return 1
    done

    print_check_msg "$dep_checked_libxml2" "no\n"
    dep_checked_libxml2=1
    return 0
}

# start collecting dependency information
echo > "$TEMP_DIR/flags.mk"

DEPENDENCIES_FAILED=
ERROR=0
# unnamed dependencies
TEMP_CFLAGS="$CFLAGS"
TEMP_CXXFLAGS="$CXXFLAGS"
TEMP_LDFLAGS="$LDFLAGS"
while true
do
    while true
    do
        if [ -z "$lang_c" ] ; then
            ERROR=1
            break
        fi

        cat >> "$TEMP_DIR/make.mk" << __EOF__
MVAR = 123
MVAR += 123
__EOF__
        break
    done
    break
done

# build type
if [ "$BUILD_TYPE" = "debug" ]; then
    TEMP_CFLAGS="\${DEBUG_CFLAGS} $TEMP_CFLAGS"
    TEMP_CXXFLAGS="\${DEBUG_CXXFLAGS} $TEMP_CXXFLAGS"
fi
if [ "$BUILD_TYPE" = "release" ]; then
    TEMP_CFLAGS="\${RELEASE_CFLAGS} $TEMP_CFLAGS"
    TEMP_CXXFLAGS="\${RELEASE_CXXFLAGS} $TEMP_CXXFLAGS"
fi

# add general dependency flags to flags.mk
echo "# general flags" >> "$TEMP_DIR/flags.mk"
if [ -n "${TEMP_CFLAGS}" ] && [ -n "$lang_c" ]; then
    echo "CFLAGS += $TEMP_CFLAGS" >> "$TEMP_DIR/flags.mk"
fi
if [ -n "${TEMP_CXXFLAGS}" ] && [ -n "$lang_cpp" ]; then
    echo "CXXFLAGS += $TEMP_CXXFLAGS" >> "$TEMP_DIR/flags.mk"
fi
if [ -n "${TEMP_LDFLAGS}" ]; then
    echo "LDFLAGS += $TEMP_LDFLAGS" >> "$TEMP_DIR/flags.mk"
fi

#
# OPTION VALUES
#
checkopt_toolkit_gtk3()
{
    VERR=0
    if dependency_error_gtk3 ; then
        VERR=1
    fi
    if [ $VERR -ne 0 ]; then
        return 1
    fi
        TEMP_CFLAGS="$TEMP_CFLAGS -Da=b"
        TEMP_CXXFLAGS="$TEMP_CXXFLAGS -Da=b"
    cat >> "$TEMP_DIR/make.mk" << __EOF__
UIOBJ += graphics_cairo.o
__EOF__
    return 0
}
checkopt_toolkit_cli()
{
    VERR=0
    if dependency_error_curl ; then
        VERR=1
    fi
    if dependency_error_test ; then
        VERR=1
    fi
    if [ $VERR -ne 0 ]; then
        return 1
    fi
    return 0
}
checkopt_toolkit_gtk2()
{
    VERR=0
    if dependency_error_gtk2 ; then
        VERR=1
    fi
    if [ $VERR -ne 0 ]; then
        return 1
    fi
    return 0
}
checkopt_toolkit_wpf()
{
    VERR=0
    if dependency_error_test ; then
        VERR=1
    fi
    if [ $VERR -ne 0 ]; then
        return 1
    fi
    return 0
}

#
# TARGETS
#

echo >> "$TEMP_DIR/flags.mk"
echo "configuring target: dav"
echo "# flags for target dav" >> "$TEMP_DIR/flags.mk"
TEMP_CFLAGS=
TEMP_CXXFLAGS=
TEMP_LDFLAGS=

if dependency_error_curl; then
    DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED curl "
    ERROR=1
fi
if dependency_error_libxml2; then
    DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED libxml2 "
    ERROR=1
fi
if dependency_error_test; then
    DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED test "
    ERROR=1
fi

# Features
if [ -n "$FEATURE_DB" ]; then
    # check dependency
    if dependency_error_sqlite ; then
        # "auto" features can fail and are just disabled in this case
        if [ "$FEATURE_DB" = "auto" ]; then
            DISABLE_FEATURE_DB=1
        else
            DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED sqlite "
            ERROR=1
        fi
    fi
    if [ -n "$DISABLE_FEATURE_DB" ]; then
        unset FEATURE_DB
    fi
fi
if [ -n "$FEATURE_DB" ]; then
    :
    TEMP_CFLAGS="$TEMP_CFLAGS -DDATABASE"
    TEMP_CXXFLAGS="$TEMP_CXXFLAGS -DDATABASE"
else
    :
fi
if [ -n "$FEATURE_GUI" ]; then
    # check dependency
    if dependency_error_gtk3 ; then
        # "auto" features can fail and are just disabled in this case
        if [ "$FEATURE_GUI" = "auto" ]; then
            DISABLE_FEATURE_GUI=1
        else
            DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED gtk3 "
            ERROR=1
        fi
    fi
    if [ -n "$DISABLE_FEATURE_GUI" ]; then
        unset FEATURE_GUI
    fi
fi
if [ -n "$FEATURE_GUI" ]; then
    :
    TEMP_CFLAGS="$TEMP_CFLAGS -DUI=GTK3"
    TEMP_CXXFLAGS="$TEMP_CXXFLAGS -DUI=GTK3"
else
    :
    TEMP_CFLAGS="$TEMP_CFLAGS -DCONSOLE"
    TEMP_CXXFLAGS="$TEMP_CXXFLAGS -DCONSOLE"
fi

# Option: --toolkit
if [ -z "$OPT_TOOLKIT" ]; then
    echo "auto-detecting option 'toolkit'"
    SAVED_ERROR="$ERROR"
    SAVED_DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED"
    ERROR=1
    while true
    do
        if isplatform "windows"; then
        if checkopt_toolkit_wpf ; then
            echo "  toolkit: wpf" >> "$TEMP_DIR/options"
            ERROR=0
            break
        fi
        fi
        if checkopt_toolkit_gtk3 ; then
            echo "  toolkit: gtk3" >> "$TEMP_DIR/options"
            ERROR=0
            break
        fi
        if checkopt_toolkit_gtk2 ; then
            echo "  toolkit: gtk2" >> "$TEMP_DIR/options"
            ERROR=0
            break
        fi
        break
    done
    if [ $ERROR -ne 0 ]; then
        SAVED_ERROR=1
        SAVED_DEPENDENCIES_FAILED="option 'toolkit' $SAVED_DEPENDENCIES_FAILED"
    fi
    ERROR="$SAVED_ERROR"
    DEPENDENCIES_FAILED="$SAVED_DEPENDENCIES_FAILED"
else
    echo "checking option toolkit = $OPT_TOOLKIT"
    if false; then
        false
    elif [ "$OPT_TOOLKIT" = "gtk3" ]; then
        echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
        if checkopt_toolkit_gtk3 ; then
            :
        else
            ERROR=1
            DEPENDENCIES_FAILED="option 'toolkit' $DEPENDENCIES_FAILED"
        fi
    elif [ "$OPT_TOOLKIT" = "cli" ]; then
        echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
        if checkopt_toolkit_cli ; then
            :
        else
            ERROR=1
            DEPENDENCIES_FAILED="option 'toolkit' $DEPENDENCIES_FAILED"
        fi
    elif [ "$OPT_TOOLKIT" = "gtk2" ]; then
        echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
        if checkopt_toolkit_gtk2 ; then
            :
        else
            ERROR=1
            DEPENDENCIES_FAILED="option 'toolkit' $DEPENDENCIES_FAILED"
        fi
    elif [ "$OPT_TOOLKIT" = "wpf" ]; then
        echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
        if checkopt_toolkit_wpf ; then
            :
        else
            ERROR=1
            DEPENDENCIES_FAILED="option 'toolkit' $DEPENDENCIES_FAILED"
        fi
    else
        echo
        echo "Invalid option value - usage:"
        echo "  --toolkit=(gtk3|cli|gtk2|wpf)"
        abort_configure
    fi
fi

if [ -n "${TEMP_CFLAGS}" ] && [ -n "$lang_c" ]; then
    echo "DAV_CFLAGS  += $TEMP_CFLAGS" >> "$TEMP_DIR/flags.mk"
fi
if [ -n "${TEMP_CXXFLAGS}" ] && [ -n "$lang_cpp" ]; then
    echo "DAV_CXXFLAGS  += $TEMP_CXXFLAGS" >> "$TEMP_DIR/flags.mk"
fi
if [ -n "${TEMP_LDFLAGS}" ]; then
    echo "DAV_LDFLAGS += $TEMP_LDFLAGS" >> "$TEMP_DIR/flags.mk"
fi

echo >> "$TEMP_DIR/flags.mk"
echo "configuring global target"
echo "# flags for unnamed target" >> "$TEMP_DIR/flags.mk"
TEMP_CFLAGS=
TEMP_CXXFLAGS=
TEMP_LDFLAGS=

if dependency_error_deptest; then
    DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED deptest "
    ERROR=1
fi

# Features


if [ -n "${TEMP_CFLAGS}" ] && [ -n "$lang_c" ]; then
    echo "CFLAGS  += $TEMP_CFLAGS" >> "$TEMP_DIR/flags.mk"
fi
if [ -n "${TEMP_CXXFLAGS}" ] && [ -n "$lang_cpp" ]; then
    echo "CXXFLAGS  += $TEMP_CXXFLAGS" >> "$TEMP_DIR/flags.mk"
fi
if [ -n "${TEMP_LDFLAGS}" ]; then
    echo "LDFLAGS += $TEMP_LDFLAGS" >> "$TEMP_DIR/flags.mk"
fi


# final result
if [ $ERROR -ne 0 ]; then
    echo
    echo "Error: Unresolved dependencies"
    echo "$DEPENDENCIES_FAILED"
    abort_configure
fi

echo "configure finished"
echo
echo "Toolchain:"
echo "  name:           $TOOLCHAIN_NAME"
if [ -n "$TOOLCHAIN_CC" ]; then
    echo "  cc:             $TOOLCHAIN_CC"
fi
if [ -n "$TOOLCHAIN_CXX" ]; then
    echo "  cxx:            $TOOLCHAIN_CXX"
fi
if [ -n "$TOOLCHAIN_WSIZE" ]; then
    echo "  word size:      $TOOLCHAIN_WSIZE bit"
fi
if [ -n "$TOOLCHAIN_CSTD" ]; then
    echo "  default C std:  $TOOLCHAIN_CSTD"
fi
if [ $has_config_vars__ -eq 1 ]; then
    echo
    echo "Config:"
    if [ -n "$prefix__initialized__" ]; then
        printf '  %-16s' 'prefix:'
        echo "$prefix"
    fi
    if [ -n "$exec_prefix__initialized__" ]; then
        printf '  %-16s' 'exec-prefix:'
        echo "$exec_prefix"
    fi
    if [ -n "$libdir__initialized__" ]; then
        printf '  %-16s' 'libdir:'
        echo "$libdir"
    fi
    if [ -n "$datarootdir__initialized__" ]; then
        printf '  %-16s' 'datarootdir:'
        echo "$datarootdir"
    fi
    if [ -n "$datadir__initialized__" ]; then
        printf '  %-16s' 'datadir:'
        echo "$datadir"
    fi
    if [ -n "$localstatedir__initialized__" ]; then
        printf '  %-16s' 'localstatedir:'
        echo "$localstatedir"
    fi
    if [ -n "$libdatadir__initialized__" ]; then
        printf '  %-16s' 'libdatadir:'
        echo "$libdatadir"
    fi
    if [ -n "$TOOLKIT_HOME__initialized__" ]; then
        printf '  %-16s' 'toolkit-home:'
        echo "$TOOLKIT_HOME"
    fi
fi
echo
echo "Options:"
cat "$TEMP_DIR/options"
echo
echo "Features:"
printf '  %-16s' 'db:'
if [ -n "$FEATURE_DB" ]; then
    echo 'on'
else
    echo 'off'
fi
printf '  %-16s' 'gui:'
if [ -n "$FEATURE_GUI" ]; then
    echo 'on'
else
    echo 'off'
fi
echo

# generate the config.mk file
pwd=`pwd`
cat > "$TEMP_DIR/config.mk" << __EOF__
#
# config.mk generated by:
# pwd: $pwd
# $0 $@
#

__EOF__
write_toolchain_defaults "$TEMP_DIR/toolchain.mk"
cat "$TEMP_DIR/config.mk" "$TEMP_DIR/vars.mk" "$TEMP_DIR/toolchain.mk" "$TEMP_DIR/flags.mk" "$TEMP_DIR/make.mk" > config.mk
rm -Rf "$TEMP_DIR"