qt5base-lts/configure

#!/bin/sh
#############################################################################
##
## Copyright (C) 2016 The Qt Company Ltd.
## Copyright (C) 2016 Intel Corporation.
## Contact: https://www.qt.io/licensing/
##
## This file is the build configuration utility of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:GPL-EXCEPT$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see https://www.qt.io/terms-conditions. For further
## information use the contact form at https://www.qt.io/contact-us.
##
## GNU General Public License Usage
## Alternatively, this file may be used under the terms of the GNU
## General Public License version 3 as published by the Free Software
## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
## included in the packaging of this file. Please review the following
## information to ensure the GNU General Public License requirements will
## be met: https://www.gnu.org/licenses/gpl-3.0.html.
##
## $QT_END_LICENSE$
##
#############################################################################

#-------------------------------------------------------------------------------
# script initialization
#-------------------------------------------------------------------------------

# the name of this script
relconf=`basename $0`
# the directory of this script is the "source tree"
relpath=`dirname $0`
relpath=`(cd "$relpath"; /bin/pwd)`
# the current directory is the "build tree" or "object tree"
outpath=`/bin/pwd`

# where to find which..
unixtests="$relpath/config.tests/unix"
WHICH="$unixtests/which.test"

PERL=`$WHICH perl 2>/dev/null`

# find out which awk we want to use, prefer gawk, then nawk, then regular awk
AWK=
for e in gawk nawk awk; do
    if "$WHICH" $e >/dev/null 2>&1 && ( $e -f /dev/null /dev/null ) >/dev/null 2>&1; then
        AWK=$e
        break
    fi
done

# find a make command
if [ -z "$MAKE" ]; then
    MAKE=
    for mk in gmake make; do
        if "$WHICH" $mk >/dev/null 2>&1; then
            MAKE=`"$WHICH" $mk`
            break
        fi
    done
    if [ -z "$MAKE" ]; then
        echo >&2 "You don't seem to have 'make' or 'gmake' in your PATH."
        echo >&2 "Cannot proceed."
        exit 1
    fi
    # export MAKE, we need it later in the config.tests
    export MAKE
fi

# do this early so we don't store it in config.status
CFG_TOPLEVEL=
relpathMangled=$relpath
outpathPrefix=
if [ x"$1" = x"-top-level" ]; then
    CFG_TOPLEVEL=yes
    relpathMangled=`dirname "$relpath"`
    outpathPrefix=../
    shift
fi

OPT_CMDLINE=  # expanded version for the script
QMAKE_CMDLINE=  # verbatim version for qmake call
set -f  # suppress globbing in for loop
SAVED_IFS=$IFS
IFS='
'
for i in "$@"; do
    case $i in
        -redo|--redo)
            optfile=${outpathPrefix}config.opt
            if test -n "$CFG_TOPLEVEL" && ! test -f $optfile; then
                optfile=config.opt
            fi
            if ! test -f $optfile; then
                echo >&2 "No config.opt present - cannot redo configuration."
                exit 1
            fi
            for a in `cat $optfile`; do
                OPT_CMDLINE="$OPT_CMDLINE
$a"
            done
            ;;
        *)
            OPT_CMDLINE="$OPT_CMDLINE
$i"
            ;;
    esac
    QMAKE_CMDLINE="$QMAKE_CMDLINE
$i"
done
set --
for i in $OPT_CMDLINE; do
    set -- "$@" "$i"
done
set +f
IFS=$SAVED_IFS

# initialize global variables
DEVICE_VARS_FILE=.device.vars
:> "$DEVICE_VARS_FILE"

#-------------------------------------------------------------------------------
# utility functions
#-------------------------------------------------------------------------------

makeabs()
{
    local FILE="$1"
    local RES="$FILE"
    if [ -z "${FILE##/*}" ]; then
        true
    elif [ "$OSTYPE" = "msys" -a -z "${FILE##[a-zA-Z]:[/\\]*}" ]; then
        true
    else
        RES=$PWD/$FILE
    fi
    RES=$RES/
    while true; do
        nres=`echo "$RES" | sed 's,/[^/][^/]*/\.\./,/,g; s,/\./,/,g'`
        test x"$nres" = x"$RES" && break
        RES=$nres
    done
    echo "$RES" | sed 's,//,/,g; s,/$,,'
}

# Helper function for getQMakeConf. It parses include statements in
# qmake.conf and prints out the expanded file
expandQMakeConf()
{
    while read line; do case "$line" in
        include*)
            inc_file=`echo "$line" | sed -n -e '/^include.*(.*)/s/include.*(\(.*\)).*$/\1/p'`
	    current_dir=`dirname "$1"`
	    conf_file="$current_dir/$inc_file"
	    if [ ! -f  "$conf_file" ]; then
                echo "WARNING: Unable to find file $conf_file" >&2
                continue
            fi
            expandQMakeConf "$conf_file" "$2"
        ;;
        *load\(device_config\)*)
            conf_file="$2"
            if [ -z "$conf_file" ]; then
                continue
            fi
            if [ ! -f  "$conf_file" ]; then
                echo "WARNING: Unable to find file $conf_file" >&2
                continue
            fi
            expandQMakeConf "$conf_file" "$2"
        ;;
        *)
            echo "$line"
        ;;
    esac; done < "$1"
}

extractQMakeVariables()
{
    LC_ALL=C $AWK '
BEGIN {
    values["LITERAL_WHITESPACE"] = " "
    values["LITERAL_DOLLAR"] = "$"
}
/^[_A-Z0-9.]+[ \t]*\+?=/ {
    valStart = index($0, "=") + 1

    append = 0
    if (substr($0, valStart - 2, 1) == "+") {
        append = 1
    }

    variable = substr($0, 0, valStart - 2 - append)
    value = substr($0, valStart)
    gsub("[ \t]+", "", variable)
    gsub("^[ \t]+", "", value)
    gsub("[ \t]+$", "", value)

    ovalue = ""
    while (match(value, /\$\$(\{[_A-Z0-9.]+\}|[_A-Z0-9.]+)/)) {
        ovalue = ovalue substr(value, 1, RSTART - 1)
        var = substr(value, RSTART + 2, RLENGTH - 2)
        value = substr(value, RSTART + RLENGTH)
        if (var ~ /^\{/) {
            var = substr(var, 2, length(var) - 2)
        }
        ovalue = ovalue values[var]
    }
    value = ovalue value

    ovalue = ""
    while (match(value, /\$\$system\(("[^"]*"|[^)]*)\)/)) {
        ovalue = ovalue substr(value, 1, RSTART - 1)
        cmd = substr(value, RSTART + 9, RLENGTH - 10)
        gsub(/^"|"$/, "", cmd)
        value = substr(value, RSTART + RLENGTH)
        while ((cmd | getline line) > 0) {
            ovalue = ovalue line
        }
        close(cmd)
    }
    value = ovalue value

    combinedValue = values[variable]
    if (append == 1 && length(combinedValue) > 0) {
        combinedValue = combinedValue " " value
    } else {
        combinedValue = value
    }
    values[variable] = combinedValue
}
END {
    for (var in values) {
        print var "=" values[var]
    }
}
'
}

getSingleQMakeVariable()
{
    echo "$2" | $AWK "/^($1)=/ { print substr(\$0, index(\$0, \"=\") + 1) }"
}

macSDKify()
{
    # Normally we take care of sysrootifying in sdk.prf, but configure extracts some
    # values before qmake is even built, so we have to duplicate the logic here.

    sdk=$(getSingleQMakeVariable "QMAKE_MAC_SDK" "$1")
    if [ -z "$sdk" ]; then echo "QMAKE_MAC_SDK must be set when building on Mac" >&2; exit 1; fi
    sysroot=$(/usr/bin/xcodebuild -sdk $sdk -version Path 2>/dev/null)
    if [ -z "$sysroot" ]; then echo "Failed to resolve SDK path for '$sdk'" >&2; exit 1; fi

    case "$sdk" in
        macosx*)
            version_min_flag="-mmacosx-version-min=$(getSingleQMakeVariable QMAKE_MACOSX_DEPLOYMENT_TARGET "$1")"
        ;;
        iphoneos*)
            version_min_flag="-miphoneos-version-min=$(getSingleQMakeVariable QMAKE_IOS_DEPLOYMENT_TARGET "$1")"
        ;;
        iphonesimulator*)
            version_min_flag="-mios-simulator-version-min=$(getSingleQMakeVariable QMAKE_IOS_DEPLOYMENT_TARGET "$1")"
        ;;
        appletvos*)
            version_min_flag="-mappletvos-version-min=$(getSingleQMakeVariable QMAKE_TVOS_DEPLOYMENT_TARGET "$1")"
        ;;
        appletvsimulator*)
            version_min_flag="-mtvos-simulator-version-min=$(getSingleQMakeVariable QMAKE_TVOS_DEPLOYMENT_TARGET "$1")"
        ;;
        watchos*)
            version_min_flag="-mwatchos-version-min=$(getSingleQMakeVariable QMAKE_WATCHOS_DEPLOYMENT_TARGET "$1")"
        ;;
        watchsimulator*)
            version_min_flag="-mwatchos-simulator-version-min=$(getSingleQMakeVariable QMAKE_WATCHOS_DEPLOYMENT_TARGET "$1")"
        ;;
        *)
        ;;
    esac

    echo "$1" | while read line; do
        case "$line" in
            QMAKE_CC=*|QMAKE_CXX=*|QMAKE_FIX_RPATH=*|QMAKE_AR=*|QMAKE_RANLIB=*|QMAKE_LINK=*|QMAKE_LINK_SHLIB=*)
                # Prefix tool with toolchain path
                var=$(echo "$line" | cut -d '=' -f 1)
                val=$(echo "$line" | cut -d '=' -f 2-)
                sdk_val=$(/usr/bin/xcrun -sdk $sdk -find $(echo $val | cut -d ' ' -f 1))
                val=$(echo $sdk_val $(echo $val | cut -s -d ' ' -f 2-))
                echo "$var=$val"
            ;;
            QMAKE_CFLAGS=*|QMAKE_CXXFLAGS=*)
                echo "$line -isysroot $sysroot $version_min_flag"
            ;;
            QMAKE_LFLAGS=*)
                echo "$line -Wl,-syslibroot,$sysroot $version_min_flag"
            ;;
            *)
                echo "$line"
            ;;
        esac
    done
}

# relies on $QMAKESPEC being set correctly. parses include statements in
# qmake.conf and prints out the expanded file
getQMakeConf()
{
    if [ -z "$specvals" ]; then
        specvals=`expandQMakeConf "$QMAKESPEC/qmake.conf" | extractQMakeVariables`
        if [ "$BUILD_ON_MAC" = "yes" ]; then specvals=$(macSDKify "$specvals"); fi
    fi
    getSingleQMakeVariable "$1" "$specvals"
}

getXQMakeConf()
{
    if [ -z "$xspecvals" ]; then
        xspecvals=`expandQMakeConf "$XQMAKESPEC/qmake.conf" "$DEVICE_VARS_FILE" | extractQMakeVariables`
        if [ "$XPLATFORM_MAC" = "yes" ]; then xspecvals=$(macSDKify "$xspecvals"); fi
    fi
    getSingleQMakeVariable "$1" "$xspecvals"
}

#-------------------------------------------------------------------------------
# device options
#-------------------------------------------------------------------------------
DeviceVar()
{
    case "$1" in
        set)
            eq="="
            ;;
        *)
            echo >&2 "BUG: wrong command to DeviceVar: $1"
            ;;
    esac

    echo "$2" "$eq" "$3" >> "$DEVICE_VARS_FILE"
}

resolveDeviceMkspec()
{
    result=$(find "$relpath/mkspecs/devices/" -type d -name "*$1*" | sed "s,^$relpath/mkspecs/,,")
    match_count=$(echo "$result" | wc -w)
    if [ "$match_count" -gt 1 ]; then
        echo >&2 "Error: Multiple matches for device '$1'. Candidates are:"
        tabbed_result=$(echo "$result" | sed 's,^,    ,')
        echo >&2 "$tabbed_result"
        echo "undefined"
    elif [ "$match_count" -eq 0 ]; then
        echo >&2 "Error: No device matching '$1'"
        echo "undefined"
    else
        echo "$result"
    fi
}

#-------------------------------------------------------------------------------
# operating system detection
#-------------------------------------------------------------------------------

# need that throughout the script
UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown

BUILD_ON_MAC=no
if [ -d /System/Library/Frameworks/Carbon.framework ]; then
    BUILD_ON_MAC=yes
fi
if [ "$OSTYPE" = "msys" ]; then
    relpath=`(cd "$relpath"; pwd -W)`
    outpath=`pwd -W`
fi

#-------------------------------------------------------------------------------
# Verify Xcode installation on Mac OS
#-------------------------------------------------------------------------------

if [ "$BUILD_ON_MAC" = "yes" ]; then
    if ! /usr/bin/xcode-select --print-path >/dev/null 2>&1; then
        echo >&2
        echo "   No Xcode is selected. Use xcode-select -switch to choose an Xcode" >&2
        echo "   version. See the xcode-select man page for more information." >&2
        echo >&2
        exit 2
    fi

    if ! /usr/bin/xcrun -find xcodebuild >/dev/null 2>&1; then
        echo >&2
        echo "   Xcode not set up properly. You may need to confirm the license" >&2
        echo "   agreement by running /usr/bin/xcodebuild without arguments." >&2
        echo >&2
        exit 2
    fi
fi

#-----------------------------------------------------------------------------
# Qt version detection
#-----------------------------------------------------------------------------
QT_VERSION=
QT_MAJOR_VERSION=
QT_MINOR_VERSION=0
QT_PATCH_VERSION=0
eval `sed -n -e 's/^MODULE_VERSION = \(\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*\)$/QT_VERSION=\1\
    QT_MAJOR_VERSION=\2\
    QT_MINOR_VERSION=\3\
    QT_PATCH_VERSION=\4/p' < "$relpath"/.qmake.conf`
if [ -z "$QT_MAJOR_VERSION" ]; then
   echo "Cannot process version from .qmake.conf"
   echo "Cannot proceed."
   exit 1
fi

#-------------------------------------------------------------------------------
# initalize variables
#-------------------------------------------------------------------------------

# QTDIR may be set and point to an old or system-wide Qt installation
unset QTDIR

# initalize internal variables
CFG_RELEASE_TOOLS=no

XPLATFORM=              # This seems to be the QMAKESPEC, like "linux-g++"
XPLATFORM_MAC=no        # Whether target platform is macOS, iOS, tvOS, or watchOS
XPLATFORM_IOS=no        # Whether target platform is iOS
XPLATFORM_TVOS=no       # Whether target platform is tvOS
XPLATFORM_WATCHOS=no    # Whether target platform is watchOS
XPLATFORM_ANDROID=no
XPLATFORM_MINGW=no      # Whether target platform is MinGW (win32-g++*)
PLATFORM=
OPT_SHADOW=maybe
OPT_VERBOSE=no
OPT_HELP=
CFG_SILENT=no
OPT_MAC_SDK=
CFG_DEV=no

# initalize variables used for installation
QT_INSTALL_PREFIX=
QT_INSTALL_DOCS=
QT_INSTALL_HEADERS=
QT_INSTALL_LIBS=
QT_INSTALL_BINS=
QT_INSTALL_LIBEXECS=
QT_INSTALL_PLUGINS=
QT_INSTALL_IMPORTS=
QT_INSTALL_QML=
QT_INSTALL_ARCHDATA=
QT_INSTALL_DATA=
QT_INSTALL_TRANSLATIONS=
QT_INSTALL_SETTINGS=
QT_INSTALL_EXAMPLES=
QT_INSTALL_TESTS=
CFG_SYSROOT=
QT_HOST_PREFIX=
QT_HOST_BINS=
QT_HOST_LIBS=
QT_HOST_DATA=
QT_EXT_PREFIX=

# Android vars
CFG_DEFAULT_ANDROID_NDK_ROOT=$ANDROID_NDK_ROOT
CFG_DEFAULT_ANDROID_SDK_ROOT=$ANDROID_SDK_ROOT
CFG_DEFAULT_ANDROID_PLATFORM=android-16
CFG_DEFAULT_ANDROID_TARGET_ARCH=armeabi-v7a
CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION=4.9
CFG_DEFAULT_ANDROID_NDK_HOST=$ANDROID_NDK_HOST

#-------------------------------------------------------------------------------
# parse command line arguments
#-------------------------------------------------------------------------------

# parse the arguments, setting things to "yes" or "no"
while [ "$#" -gt 0 ]; do
    CURRENT_OPT="$1"
    case "$1" in
    #Autoconf style options
    --enable-*)
        VAR=`echo $1 | sed 's,^--enable-\(.*\),\1,'`
        VAL=yes
        ;;
    --disable-*)
        VAR=`echo $1 | sed 's,^--disable-\(.*\),\1,'`
        VAL=no
        ;;
    --*=*)
        VAR=`echo $1 | sed 's,^--\(.*\)=.*,\1,'`
        VAL=`echo $1 | sed 's,^--.*=\(.*\),\1,'`
        ;;
    --no-*)
        VAR=`echo $1 | sed 's,^--no-\(.*\),\1,'`
        VAL=no
        ;;
    --*)
        VAR=`echo $1 | sed 's,^--\(.*\),\1,'`
        VAL=yes
        ;;
    #Qt plugin options
    -no-*-*|-plugin-*-*|-qt-*-*)
        VAR=`echo $1 | sed 's,^-[^-]*-\(.*\),\1,'`
        VAL=`echo $1 | sed 's,^-\([^-]*\).*,\1,'`
        ;;
    #Qt style no options
    -no-*)
        VAR=`echo $1 | sed 's,^-no-\(.*\),\1,'`
        VAL=no
        ;;
    #Qt style options that pass an argument
    -prefix| \
    -docdir| \
    -headerdir| \
    -plugindir| \
    -importdir| \
    -qmldir| \
    -archdatadir| \
    -datadir| \
    -libdir| \
    -bindir| \
    -libexecdir| \
    -translationdir| \
    -sysconfdir| \
    -examplesdir| \
    -testsdir| \
    -hostdatadir| \
    -hostbindir| \
    -hostlibdir| \
    -extprefix| \
    -sysroot| \
    -external-hostbindir| \
    -make| \
    -nomake| \
    -skip| \
    -platform| \
    -xplatform| \
    -device| \
    -device-option| \
    -sdk| \
    -android-sdk| \
    -android-ndk| \
    -android-ndk-platform| \
    -android-ndk-host| \
    -android-arch| \
    -android-toolchain-version)
        VAR=`echo $1 | sed 's,^-\(.*\),\1,'`
        shift
        VAL="$1"
        ;;
    #Qt style complex options in one command
    -enable-*|-disable-*)
        VAR=`echo $1 | sed 's,^-\([^-]*\)-.*,\1,'`
        VAL=`echo $1 | sed 's,^-[^-]*-\(.*\),\1,'`
        ;;
    #Qt Builtin/System style options
    -no-*|-system-*|-qt-*)
        VAR=`echo $1 | sed 's,^-[^-]*-\(.*\),\1,'`
        VAL=`echo $1 | sed 's,^-\([^-]*\)-.*,\1,'`
        ;;
    #Options that cannot be generalized
    -hostprefix)
        VAR=`echo $1 | sed 's,^-\(.*\),\1,'`
        # this option may or may not be followed by an argument
        if [ -z "$2" ] || echo "$2" | grep '^-' >/dev/null 2>&1; then
            VAL=$outpath
        else
            shift;
            VAL=$1
        fi
	;;
    #General options, including Qt style yes options
    -*)
        VAR=`echo $1 | sed 's,^-\(.*\),\1,'`
        VAL="yes"
        ;;
    # most options don't need processing in the configure script, skip them. qmake will do the real validation
    *)
        shift
        continue
        ;;
    esac

    shift

    UNKNOWN_OPT=no
    case "$VAR" in
    prefix)
        QT_INSTALL_PREFIX="$VAL"
        ;;
    hostprefix)
	QT_HOST_PREFIX="$VAL"
	;;
    hostdatadir)
        QT_HOST_DATA="$VAL"
        ;;
    hostbindir)
        QT_HOST_BINS="$VAL"
        ;;
    hostlibdir)
        QT_HOST_LIBS="$VAL"
        ;;
    extprefix)
        QT_EXT_PREFIX="$VAL"
        ;;
    docdir)
        QT_INSTALL_DOCS="$VAL"
        ;;
    headerdir)
        QT_INSTALL_HEADERS="$VAL"
        ;;
    plugindir)
        QT_INSTALL_PLUGINS="$VAL"
        ;;
    importdir)
        QT_INSTALL_IMPORTS="$VAL"
        ;;
    qmldir)
        QT_INSTALL_QML="$VAL"
        ;;
    archdatadir)
        QT_INSTALL_ARCHDATA="$VAL"
        ;;
    datadir)
        QT_INSTALL_DATA="$VAL"
        ;;
    libdir)
        QT_INSTALL_LIBS="$VAL"
        ;;
    translationdir)
        QT_INSTALL_TRANSLATIONS="$VAL"
        ;;
    sysconfdir|settingsdir)
        QT_INSTALL_SETTINGS="$VAL"
        ;;
    examplesdir)
        QT_INSTALL_EXAMPLES="$VAL"
        ;;
    testsdir)
        QT_INSTALL_TESTS="$VAL"
        ;;
    sysroot)
        CFG_SYSROOT="$VAL"
        ;;
    external-hostbindir)
        CFG_HOST_QT_TOOLS_PATH="$VAL"
        ;;
    bindir)
        QT_INSTALL_BINS="$VAL"
        ;;
    libexecdir)
        QT_INSTALL_LIBEXECS="$VAL"
        ;;
    sdk)
        if [ "$BUILD_ON_MAC" = "yes" ]; then
            DeviceVar set QMAKE_MAC_SDK "$VAL"
            OPT_MAC_SDK="$VAL"
        else
            UNKNOWN_OPT=yes
        fi
	;;
    platform)
        PLATFORM="$VAL"
        ;;
    xplatform)
        XPLATFORM="$VAL"
        ;;
    device)
        XPLATFORM=`resolveDeviceMkspec $VAL`
        [ "$XPLATFORM" = "undefined" ] && exit 101
        ;;
    device-option)
        DEV_VAR=`echo $VAL | cut -d '=' -f 1`
        DEV_VAL=`echo $VAL | cut -d '=' -f 2-`
        DeviceVar set $DEV_VAR "$DEV_VAL"
        ;;
    optimized-qmake|optimized-tools)
        if [ "$VAL" = "yes" ] || [ "$VAL" = "no" ]; then
            CFG_RELEASE_TOOLS="$VAL"
        fi
        ;;
    developer-build)
        CFG_DEV="yes"
        ;;
    h|help)
        if [ "$VAL" = "yes" ]; then
            OPT_HELP="$VAL"
        else
            UNKNOWN_OPT=yes
        fi
        ;;
    v|verbose)
        if [ "$VAL" = "yes" ]; then
            OPT_VERBOSE=yes
        elif [ "$VAL" = "no" ]; then
            OPT_VERBOSE=no
        else
            UNKNOWN_OPT=yes
        fi
        ;;
    silent)
        # need to keep this here, to ensure qmake is built silently
        CFG_SILENT="$VAL"
        ;;
    android-sdk)
        CFG_DEFAULT_ANDROID_SDK_ROOT="$VAL"
        ;;
    android-ndk)
        CFG_DEFAULT_ANDROID_NDK_ROOT="$VAL"
        ;;
    android-ndk-platform)
        CFG_DEFAULT_ANDROID_PLATFORM="$VAL"
        ;;
    android-ndk-host)
        CFG_DEFAULT_ANDROID_NDK_HOST="$VAL"
        ;;
    android-arch)
        CFG_DEFAULT_ANDROID_TARGET_ARCH="$VAL"
        ;;
    android-toolchain-version)
        CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION="$VAL"
        ;;
    *)
        ;;
    esac
    if [ "$UNKNOWN_OPT" = "yes" ]; then
        echo "${CURRENT_OPT}: invalid command-line switch"
        ERROR=yes
    fi
done
[ "x$ERROR" = "xyes" ] && exit 1

#-------------------------------------------------------------------------------
# help - interactive parts of the script _after_ this section please
#-------------------------------------------------------------------------------

if [ "$OPT_HELP" = "yes" ]; then
    cat $relpath/config_help.txt
    exit 0
fi

#-------------------------------------------------------------------------------
# platform detection
#-------------------------------------------------------------------------------

if [ -z "$PLATFORM" ]; then
    PLATFORM_NOTES=
    case "$UNAME_SYSTEM:$UNAME_RELEASE" in
     Darwin:*)
        PLATFORM=macx-clang
        ;;
     AIX:*)
        #PLATFORM=aix-g++
        #PLATFORM=aix-g++-64
        PLATFORM=aix-xlc
        #PLATFORM=aix-xlc-64
        PLATFORM_NOTES="
            - Also available for AIX: aix-g++ aix-g++-64 aix-xlc-64
        "
        ;;
     GNU:*)
        PLATFORM=hurd-g++
        ;;
     dgux:*)
        PLATFORM=dgux-g++
        ;;
#     DYNIX/ptx:4*)
#       PLATFORM=dynix-g++
#       ;;
     ULTRIX:*)
        PLATFORM=ultrix-g++
        ;;
     FreeBSD:*)
        if [ "$(uname -r | cut -d. -f1)" -ge 10 ]; then
            PLATFORM=freebsd-clang
            PLATFORM_NOTES="
                - Also available for FreeBSD: freebsd-g++
            "
        else
            PLATFORM=freebsd-g++
            PLATFORM_NOTES="
                - Also available for FreeBSD: freebsd-clang
            "
        fi
        ;;
     OpenBSD:*)
        PLATFORM=openbsd-g++
        ;;
     NetBSD:*)
        PLATFORM=netbsd-g++
        ;;
     BSD/OS:*|BSD/386:*)
        PLATFORM=bsdi-g++
        ;;
     IRIX*:*)
        #PLATFORM=irix-g++
        PLATFORM=irix-cc
        #PLATFORM=irix-cc-64
        PLATFORM_NOTES="
            - Also available for IRIX: irix-g++ irix-cc-64
        "
        ;;
     HP-UX:*)
        case "$UNAME_MACHINE" in
            ia64)
                #PLATFORM=hpuxi-acc-32
                PLATFORM=hpuxi-acc-64
                PLATFORM_NOTES="
                    - Also available for HP-UXi: hpuxi-acc-32
                "
            ;;
            *)
                #PLATFORM=hpux-g++
                PLATFORM=hpux-acc
                #PLATFORM=hpux-acc-64
                #PLATFORM=hpux-cc
                #PLATFORM=hpux-acc-o64
                PLATFORM_NOTES="
                    - Also available for HP-UX: hpux-g++ hpux-acc-64 hpux-acc-o64
                "
            ;;
        esac
        ;;
     OSF1:*)
        #PLATFORM=tru64-g++
        PLATFORM=tru64-cxx
        PLATFORM_NOTES="
            - Also available for Tru64: tru64-g++
        "
        ;;
     Linux:*)
        PLATFORM=linux-g++
        PLATFORM_NOTES="
            - Also available for Linux: linux-clang linux-kcc linux-icc linux-cxx
        "
        ;;
     SunOS:5*)
        #PLATFORM=solaris-g++
        PLATFORM=solaris-cc
        #PLATFORM=solaris-cc64
        PLATFORM_NOTES="
            - Also available for Solaris: solaris-g++ solaris-cc-64
        "
        ;;
     ReliantUNIX-*:*|SINIX-*:*)
        PLATFORM=reliant-cds
        #PLATFORM=reliant-cds-64
        PLATFORM_NOTES="
            - Also available for Reliant UNIX: reliant-cds-64
        "
        ;;
     CYGWIN*:*)
        PLATFORM=cygwin-g++
        ;;
     LynxOS*:*)
        PLATFORM=lynxos-g++
        ;;
     OpenUNIX:*)
        #PLATFORM=unixware-g++
        PLATFORM=unixware-cc
        PLATFORM_NOTES="
            - Also available for OpenUNIX: unixware-g++
        "
        ;;
     UnixWare:*)
        #PLATFORM=unixware-g++
        PLATFORM=unixware-cc
        PLATFORM_NOTES="
            - Also available for UnixWare: unixware-g++
        "
        ;;
     SCO_SV:*)
        #PLATFORM=sco-g++
        PLATFORM=sco-cc
        PLATFORM_NOTES="
            - Also available for SCO OpenServer: sco-g++
        "
        ;;
     UNIX_SV:*)
        PLATFORM=unixware-g++
        ;;
     QNX:*)
        PLATFORM=unsupported/qnx-g++
        ;;
     *)
            echo >&2
            echo "   The build script does not currently recognize all" >&2
            echo "   platforms supported by Qt." >&2
            echo "   Rerun this script with a -platform option listed to" >&2
            echo "   set the system/compiler combination you use." >&2
            echo >&2
            exit 2
    esac
fi

[ -z "$XPLATFORM" ] && XPLATFORM="$PLATFORM"

case "$XPLATFORM" in
    *win32-g++*)
        XPLATFORM_MINGW=yes
        ;;
    *qnx-*)
        ;;
    *haiku-*)
        ;;
    *ios*)
        XPLATFORM_MAC=yes
        XPLATFORM_IOS=yes
        ;;
    *tvos*)
        XPLATFORM_MAC=yes
        XPLATFORM_TVOS=yes
        ;;
    *watchos*)
        XPLATFORM_MAC=yes
        XPLATFORM_WATCHOS=yes
        ;;
    *macx*)
        XPLATFORM_MAC=yes
        ;;
    *integrity*)
        ;;
    # XPLATFORM_ANDROID should not be set for unsupported/android-g++
    *unsupported*)
        ;;
    *android-g++*)
        XPLATFORM_ANDROID=g++
        ;;
    *android-clang*)
        XPLATFORM_ANDROID=clang
        ;;
esac

#-------------------------------------------------------------------------------
# command line and environment validation
#-------------------------------------------------------------------------------

if [ "$XPLATFORM_ANDROID" != "no" ]; then
    if [ -z "$CFG_DEFAULT_ANDROID_NDK_HOST" ]; then
        case $PLATFORM in
        linux-*)
            if [ -d "$CFG_DEFAULT_ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-$CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION/prebuilt/linux-x86" ]; then
                CFG_DEFAULT_ANDROID_NDK_HOST=linux-x86
            elif [ -d "$CFG_DEFAULT_ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-$CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION/prebuilt/linux-x86_64" ]; then
                CFG_DEFAULT_ANDROID_NDK_HOST=linux-x86_64
            fi
            ;;
        macx-*)
            CFG_DEFAULT_ANDROID_NDK_HOST=darwin-x86
            if [ -d "$CFG_DEFAULT_ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-$CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION/prebuilt/darwin-x86_64" ]; then
                CFG_DEFAULT_ANDROID_NDK_HOST=darwin-x86_64
            fi
            ;;
        win32-*)
            CFG_DEFAULT_ANDROID_NDK_HOST=windows
            if [ -d "$CFG_DEFAULT_ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-$CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION/prebuilt/windows-x86_64" ]; then
                CFG_DEFAULT_ANDROID_NDK_HOST=windows-x86_64
            fi
            ;;
        esac
    fi

        if [ -z "$CFG_DEFAULT_ANDROID_NDK_ROOT" ]; then
            echo
            echo "Can not find Android NDK. Please use -android-ndk option to specify one"
            exit 1
        fi
        if [ -z "$CFG_DEFAULT_ANDROID_SDK_ROOT" ]; then
            echo
            echo "Can not find Android SDK. Please use -android-sdk option to specify one"
            exit 1
        fi
        if [ -z "CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION" ] || [ ! -d "$CFG_DEFAULT_ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-$CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION/prebuilt" ]; then
            echo
            echo "Can not detect Android NDK toolchain. Please use -android-toolchain-version to specify"
            exit 1
        fi
        if [ -z "$CFG_DEFAULT_ANDROID_NDK_HOST" ] || [ ! -d "$CFG_DEFAULT_ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-$CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION/prebuilt/$CFG_DEFAULT_ANDROID_NDK_HOST" ]; then
            echo
            echo "Can not detect the android host. Please use -android-ndk-host option to specify one"
            exit 1
        fi

        DeviceVar set DEFAULT_ANDROID_SDK_ROOT "$CFG_DEFAULT_ANDROID_SDK_ROOT"
        DeviceVar set DEFAULT_ANDROID_NDK_ROOT "$CFG_DEFAULT_ANDROID_NDK_ROOT"
        DeviceVar set DEFAULT_ANDROID_PLATFORM "$CFG_DEFAULT_ANDROID_PLATFORM"
        DeviceVar set DEFAULT_ANDROID_NDK_HOST "$CFG_DEFAULT_ANDROID_NDK_HOST"
        DeviceVar set DEFAULT_ANDROID_TARGET_ARCH "$CFG_DEFAULT_ANDROID_TARGET_ARCH"
        DeviceVar set DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION "$CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION"
fi

if [ -d "$PLATFORM" ]; then
  QMAKESPEC="$PLATFORM"
else
  QMAKESPEC="$relpath/mkspecs/${PLATFORM}"
fi
if [ -d "$XPLATFORM" ]; then
  XQMAKESPEC="$XPLATFORM"
else
  XQMAKESPEC="$relpath/mkspecs/${XPLATFORM}"
fi

if [ "$BUILD_ON_MAC" = "yes" ]; then
   if [ `basename $QMAKESPEC` = "macx-xcode" ] || [ `basename $XQMAKESPEC` = "macx-xcode" ]; then
      echo >&2
      echo "   Platform 'macx-xcode' should not be used when building Qt/Mac." >&2
      echo "   Please build Qt/Mac with 'macx-clang' or 'macx-g++', then use" >&2
      echo "   the 'macx-xcode' spec for your application, and it will link to" >&2
      echo "   the Qt/Mac build using the settings of the original mkspec." >&2
      echo >&2
      exit 2
    fi
fi

# check specified platforms are supported
if [ '!' -d "$QMAKESPEC" ]; then
    echo
    echo "   The specified system/compiler is not supported:"
    echo
    echo "      $QMAKESPEC"
    echo
    echo "   Please see the README file for a complete list."
    echo
    exit 2
fi
if [ '!' -d "$XQMAKESPEC" ]; then
    echo
    echo "   The specified system/compiler is not supported:"
    echo
    echo "      $XQMAKESPEC"
    echo
    echo "   Please see the README file for a complete list."
    echo
    exit 2
fi
if [ '!' -f "${XQMAKESPEC}/qplatformdefs.h" ]; then
    echo
    echo "   The specified system/compiler port is not complete:"
    echo
    echo "      $XQMAKESPEC/qplatformdefs.h"
    echo
    echo "   Please information use the contact form at http://www.qt.io/contact-us"
    echo
    exit 2
fi

#-------------------------------------------------------------------------------
# build tree initialization
#-------------------------------------------------------------------------------

# is this a shadow build?
if [ "$OPT_SHADOW" = "maybe" ]; then
    OPT_SHADOW=no
    if [ "$relpath" != "$outpath" ] && [ '!' -f "$outpath/configure" ]; then
        if [ -h "$outpath" ]; then
            [ "$relpath" -ef "$outpath" ] || OPT_SHADOW=yes
        else
            OPT_SHADOW=yes
        fi
    fi
fi
if [ "$OPT_SHADOW" = "yes" ]; then
    if [ -f "$relpath/.qmake.cache" -o -f "$relpath/src/corelib/global/qconfig.h" -o -f "$relpath/src/corelib/global/qconfig.cpp" ]; then
        echo >&2 "You cannot make a shadow build from a source tree containing a previous build."
        echo >&2 "Cannot proceed."
        exit 1
    fi
    [ "$OPT_VERBOSE" = "yes" ] && echo "Performing shadow build..."
fi

if [ "$OPT_SHADOW" = "yes" ]; then
    echo "Preparing build tree..."

    [ -d "$outpath/bin" ] || mkdir -p "$outpath/bin"

    mkdir -p "$outpath/mkspecs"
fi

if [ "$XPLATFORM_ANDROID" = "no" ]; then
    TEST_COMPILER=`getXQMakeConf QMAKE_CXX`
    GCC_MACHINE_DUMP=
    case "$TEST_COMPILER" in *g++) GCC_MACHINE_DUMP=$($TEST_COMPILER -dumpmachine);; esac
    if [ -n "$GCC_MACHINE_DUMP" ]; then
        DeviceVar set GCC_MACHINE_DUMP $($TEST_COMPILER -dumpmachine)
    fi
fi

#-------------------------------------------------------------------------------
# postprocess installation and deployment paths
#-------------------------------------------------------------------------------

if [ -z "$QT_INSTALL_PREFIX" ]; then
    if [ "$CFG_DEV" = "yes" ]; then
        QT_INSTALL_PREFIX="$outpath" # In Development, we use sandboxed builds by default
    else
        QT_INSTALL_PREFIX="/usr/local/Qt-${QT_VERSION}" # the default install prefix is /usr/local/Qt-$QT_VERSION
    fi
fi
QT_INSTALL_PREFIX=`makeabs "$QT_INSTALL_PREFIX"`

if [ -z "$QT_EXT_PREFIX" ]; then
    QT_EXT_PREFIX=$QT_INSTALL_PREFIX
    if [ -n "$CFG_SYSROOT" ]; then
        QMAKE_SYSROOTIFY=true
    else
        QMAKE_SYSROOTIFY=false
    fi
else
    QT_EXT_PREFIX=`makeabs "$QT_EXT_PREFIX"`
    QMAKE_SYSROOTIFY=false
fi

if [ -z "$QT_HOST_PREFIX" ]; then
    if $QMAKE_SYSROOTIFY; then
        QT_HOST_PREFIX=$CFG_SYSROOT$QT_EXT_PREFIX
    else
        QT_HOST_PREFIX=$QT_EXT_PREFIX
    fi
    HAVE_HOST_PATH=false
else
    QT_HOST_PREFIX=`makeabs "$QT_HOST_PREFIX"`
    HAVE_HOST_PATH=true
fi

#------- make the paths relative to the prefixes --------

PREFIX_COMPLAINTS=
PREFIX_REMINDER=false
while read basevar baseoption var option; do
    eval path=\$QT_${basevar}_$var
    [ -z "$path" ] && continue
    path=`makeabs "$path"`
    eval base=\$QT_${basevar}_PREFIX
    rel=${path##$base}
    if [ x"$rel" = x"$path" ]; then
        if [ x"$option" != x"sysconf" ]; then
            PREFIX_COMPLAINTS="$PREFIX_COMPLAINTS
        NOTICE: -${option}dir is not a subdirectory of ${baseoption}prefix."
            eval \$HAVE_${basevar}_PATH || PREFIX_REMINDER=true
        fi
        eval QT_REL_${basevar}_$var=\$rel
    elif [ -z "$rel" ]; then
        eval QT_REL_${basevar}_$var=.
    else
        eval QT_REL_${basevar}_$var=\${rel#/}
    fi
done <<EOF
INSTALL - DOCS doc
INSTALL - HEADERS header
INSTALL - LIBS lib
INSTALL - LIBEXECS libexec
INSTALL - BINS bin
INSTALL - PLUGINS plugin
INSTALL - IMPORTS import
INSTALL - QML qml
INSTALL - ARCHDATA archdata
INSTALL - DATA data
INSTALL - TRANSLATIONS translation
INSTALL - EXAMPLES examples
INSTALL - TESTS tests
INSTALL - SETTINGS sysconf
HOST -host BINS hostbin
HOST -host LIBS hostlib
HOST -host DATA hostdata
EOF
$PREFIX_REMINDER && PREFIX_COMPLAINTS="$PREFIX_COMPLAINTS
        Maybe you forgot to specify -prefix/-hostprefix?"

if [ -z "$QT_REL_INSTALL_HEADERS" ]; then
    QT_REL_INSTALL_HEADERS=include
fi

if [ -z "$QT_REL_INSTALL_LIBS" ]; then
    QT_REL_INSTALL_LIBS=lib
fi

if [ -z "$QT_REL_INSTALL_BINS" ]; then
    QT_REL_INSTALL_BINS=bin
fi

if [ -z "$QT_REL_INSTALL_ARCHDATA" ]; then
    QT_REL_INSTALL_ARCHDATA=.
fi
if [ x"$QT_REL_INSTALL_ARCHDATA" != x. ]; then
    QT_REL_INSTALL_ARCHDATA_PREFIX=$QT_REL_INSTALL_ARCHDATA/
fi

if [ -z "$QT_REL_INSTALL_LIBEXECS" ]; then
    if [ "$XPLATFORM_MINGW" = "yes" ]; then
        QT_REL_INSTALL_LIBEXECS=${QT_REL_INSTALL_ARCHDATA_PREFIX}bin
    else
        QT_REL_INSTALL_LIBEXECS=${QT_REL_INSTALL_ARCHDATA_PREFIX}libexec
    fi
fi

if [ -z "$QT_REL_INSTALL_PLUGINS" ]; then
    QT_REL_INSTALL_PLUGINS=${QT_REL_INSTALL_ARCHDATA_PREFIX}plugins
fi

if [ -z "$QT_REL_INSTALL_IMPORTS" ]; then
    QT_REL_INSTALL_IMPORTS=${QT_REL_INSTALL_ARCHDATA_PREFIX}imports
fi

if [ -z "$QT_REL_INSTALL_QML" ]; then
    QT_REL_INSTALL_QML=${QT_REL_INSTALL_ARCHDATA_PREFIX}qml
fi

if [ -z "$QT_REL_INSTALL_DATA" ]; then
    QT_REL_INSTALL_DATA=.
fi
if [ x"$QT_REL_INSTALL_DATA" != x. ]; then
    QT_REL_INSTALL_DATA_PREFIX=$QT_REL_INSTALL_DATA/
fi

if [ -z "$QT_REL_INSTALL_DOCS" ]; then
    QT_REL_INSTALL_DOCS=${QT_REL_INSTALL_DATA_PREFIX}doc
fi

if [ -z "$QT_REL_INSTALL_TRANSLATIONS" ]; then
    QT_REL_INSTALL_TRANSLATIONS=${QT_REL_INSTALL_DATA_PREFIX}translations
fi

if [ -z "$QT_REL_INSTALL_EXAMPLES" ]; then
    QT_REL_INSTALL_EXAMPLES=examples
fi

if [ -z "$QT_REL_INSTALL_TESTS" ]; then
    QT_REL_INSTALL_TESTS=tests
fi

if [ -z "$QT_REL_INSTALL_SETTINGS" ]; then
    if [ "$XPLATFORM_MAC" = "yes" ]; then
        QT_REL_INSTALL_SETTINGS=/Library/Preferences/Qt
    else
        QT_REL_INSTALL_SETTINGS=etc/xdg
    fi
fi

#------- host paths --------

if [ -z "$QT_REL_HOST_BINS" ]; then
    if $HAVE_HOST_PATH; then
        QT_REL_HOST_BINS=bin
    else
        QT_REL_HOST_BINS=$QT_REL_INSTALL_BINS
    fi
fi

if [ -z "$QT_REL_HOST_LIBS" ]; then
    if $HAVE_HOST_PATH; then
        QT_REL_HOST_LIBS=lib
    else
        QT_REL_HOST_LIBS=$QT_REL_INSTALL_LIBS
    fi
fi

if [ -z "$QT_REL_HOST_DATA" ]; then
    if $HAVE_HOST_PATH; then
        QT_REL_HOST_DATA=.
    else
        QT_REL_HOST_DATA=$QT_REL_INSTALL_ARCHDATA
    fi
fi

shortxspec=`echo $XQMAKESPEC | sed "s,^${relpath}/mkspecs/,,"`
shortspec=`echo $QMAKESPEC | sed "s,^${relpath}/mkspecs/,,"`

QT_CONFIGURE_STR_OFF=0

addConfStr()
{
    QT_CONFIGURE_STR_OFFSETS="$QT_CONFIGURE_STR_OFFSETS $QT_CONFIGURE_STR_OFF,"
    QT_CONFIGURE_STRS="$QT_CONFIGURE_STRS    \"$1\\0\"
"
    count=`echo "$1" | wc -c`
    QT_CONFIGURE_STR_OFF=`expr $QT_CONFIGURE_STR_OFF + $count`
}

QT_CONFIGURE_STR_OFFSETS=
QT_CONFIGURE_STRS=
addConfStr "$QT_REL_INSTALL_DOCS"
addConfStr "$QT_REL_INSTALL_HEADERS"
addConfStr "$QT_REL_INSTALL_LIBS"
addConfStr "$QT_REL_INSTALL_LIBEXECS"
addConfStr "$QT_REL_INSTALL_BINS"
addConfStr "$QT_REL_INSTALL_PLUGINS"
addConfStr "$QT_REL_INSTALL_IMPORTS"
addConfStr "$QT_REL_INSTALL_QML"
addConfStr "$QT_REL_INSTALL_ARCHDATA"
addConfStr "$QT_REL_INSTALL_DATA"
addConfStr "$QT_REL_INSTALL_TRANSLATIONS"
addConfStr "$QT_REL_INSTALL_EXAMPLES"
addConfStr "$QT_REL_INSTALL_TESTS"
QT_CONFIGURE_STR_OFFSETS_ALL=$QT_CONFIGURE_STR_OFFSETS
QT_CONFIGURE_STRS_ALL=$QT_CONFIGURE_STRS

QT_CONFIGURE_STR_OFFSETS=
QT_CONFIGURE_STRS=
addConfStr "$CFG_SYSROOT"
addConfStr "$QT_REL_HOST_BINS"
addConfStr "$QT_REL_HOST_LIBS"
addConfStr "$QT_REL_HOST_DATA"
addConfStr "$shortxspec"
addConfStr "$shortspec"

#-------------------------------------------------------------------------------
# generate qconfig.cpp
#-------------------------------------------------------------------------------
[ -d "$outpath/src/corelib/global" ] || mkdir -p "$outpath/src/corelib/global"

cat > "$outpath/src/corelib/global/qconfig.cpp.new" <<EOF
/* Installation date */
static const char qt_configure_installation          [12+11]    = "qt_instdate=2012-12-20";

/* Installation Info */
static const char qt_configure_prefix_path_str       [256 + 12] = "qt_prfxpath=$QT_INSTALL_PREFIX";
#ifdef QT_BUILD_QMAKE
static const char qt_configure_ext_prefix_path_str   [256 + 12] = "qt_epfxpath=$QT_EXT_PREFIX";
static const char qt_configure_host_prefix_path_str  [256 + 12] = "qt_hpfxpath=$QT_HOST_PREFIX";
#endif

static const short qt_configure_str_offsets[] = {
    $QT_CONFIGURE_STR_OFFSETS_ALL
#ifdef QT_BUILD_QMAKE
    $QT_CONFIGURE_STR_OFFSETS
#endif
};
static const char qt_configure_strs[] =
$QT_CONFIGURE_STRS_ALL#ifdef QT_BUILD_QMAKE
$QT_CONFIGURE_STRS#endif
;

#define QT_CONFIGURE_SETTINGS_PATH "$QT_REL_INSTALL_SETTINGS"

#ifdef QT_BUILD_QMAKE
# define QT_CONFIGURE_SYSROOTIFY_PREFIX $QMAKE_SYSROOTIFY
#endif

#define QT_CONFIGURE_PREFIX_PATH qt_configure_prefix_path_str + 12
#ifdef QT_BUILD_QMAKE
# define QT_CONFIGURE_EXT_PREFIX_PATH qt_configure_ext_prefix_path_str + 12
# define QT_CONFIGURE_HOST_PREFIX_PATH qt_configure_host_prefix_path_str + 12
#endif
EOF

# avoid unecessary rebuilds by copying only if qconfig.cpp has changed
if cmp -s "$outpath/src/corelib/global/qconfig.cpp" "$outpath/src/corelib/global/qconfig.cpp.new"; then
    rm -f "$outpath/src/corelib/global/qconfig.cpp.new"
else
    [ -f "$outpath/src/corelib/global/qconfig.cpp" ] && chmod +w "$outpath/src/corelib/global/qconfig.cpp"
    mv "$outpath/src/corelib/global/qconfig.cpp.new" "$outpath/src/corelib/global/qconfig.cpp"
    chmod -w "$outpath/src/corelib/global/qconfig.cpp"
fi


# -----------------------------------------------------------------------------
# build qmake
# -----------------------------------------------------------------------------

# symlink includes
if [ -e "$relpath/.git" ]; then
    if [ -z "$PERL" ]; then
        echo
        echo "You need perl in your PATH to make a build from GIT."
        echo "Cannot proceed."
        exit 1
    fi

    "$relpath/bin/syncqt.pl" -version $QT_VERSION -minimal -module QtCore "$relpath" || exit 1
fi

# $1: input variable name (awk regexp)
# $2: optional output variable name
# $3: optional value transformation (sed command)
# relies on $QMAKESPEC, $COMPILER_CONF and $mkfile being set correctly, as the latter
# is where the resulting variable is written to
setBootstrapVariable()
{
    getQMakeConf "$1" | echo ${2-$1} = `if [ -n "$3" ]; then sed "$3"; else cat; fi` >> "$mkfile"
}

# build qmake
    echo "Creating qmake..."
    mkdir -p "$outpath/qmake" || exit

        in_mkfile=$relpath/qmake/Makefile.unix
        mkfile=$outpath/qmake/Makefile
        if [ -f "$mkfile" ]; then
            [ "$CFG_DEV" = "yes" ] && "$WHICH" chflags >/dev/null 2>&1 && chflags nouchg "$mkfile"
            rm -f "$mkfile"
        fi

        echo "########################################################################" > "$mkfile"
        echo "## This file was autogenerated by configure, all changes will be lost ##" >> "$mkfile"
        echo "########################################################################" >> "$mkfile"
        EXTRA_CXXFLAGS="\$(QMAKE_CXXFLAGS) \$(QMAKE_CXXFLAGS_CXX11) \$(QMAKE_CXXFLAGS_SPLIT_SECTIONS)"
        EXTRA_LFLAGS="\$(QMAKE_LFLAGS) \$(QMAKE_LFLAGS_GCSECTIONS)"

        if [ "$PLATFORM" = "irix-cc" ] || [ "$PLATFORM" = "irix-cc-64" ]; then
	    EXTRA_LFLAGS="$EXTRA_LFLAGS -lm"
        fi

        [ "$CFG_SILENT" = "yes" ] && CC_TRANSFORM='s,^,\@,' || CC_TRANSFORM=
        setBootstrapVariable QMAKE_CC CC "$CC_TRANSFORM"
        setBootstrapVariable QMAKE_CXX CXX "$CC_TRANSFORM"
        setBootstrapVariable QMAKE_CXXFLAGS
        setBootstrapVariable QMAKE_CXXFLAGS_CXX11
        setBootstrapVariable QMAKE_CXXFLAGS_SPLIT_SECTIONS
        setBootstrapVariable QMAKE_LFLAGS
        setBootstrapVariable QMAKE_LFLAGS_GCSECTIONS

        if [ "$CFG_DEBUG" = "no" ] || [ "$CFG_RELEASE_TOOLS" = "yes" ]; then
            setBootstrapVariable QMAKE_CXXFLAGS_RELEASE
            EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS \$(QMAKE_CXXFLAGS_RELEASE)"
        else
            setBootstrapVariable QMAKE_CXXFLAGS_DEBUG
            EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS \$(QMAKE_CXXFLAGS_DEBUG)"
        fi

	adjrelpath=`echo "$relpath" | sed 's/ /\\\\\\\\ /g'`
	adjoutpath=`echo "$outpath" | sed 's/ /\\\\\\\\ /g'`
	adjqmakespec=`echo "$QMAKESPEC" | sed 's/ /\\\\\\\\ /g'`

        echo "BUILD_PATH = .." >> "$mkfile"
        echo "SOURCE_PATH = $adjrelpath" >> "$mkfile"
        if [ -e "$relpath/.git" ]; then
            echo 'INC_PATH = $(BUILD_PATH)/include' >> "$mkfile"
        else
            echo 'INC_PATH = $(SOURCE_PATH)/include' >> "$mkfile"
        fi
        echo "QMAKESPEC = $adjqmakespec" >> "$mkfile"
        echo "QT_VERSION = $QT_VERSION" >> "$mkfile"
        echo "QT_MAJOR_VERSION = $QT_MAJOR_VERSION" >> "$mkfile"
        echo "QT_MINOR_VERSION = $QT_MINOR_VERSION" >> "$mkfile"
        echo "QT_PATCH_VERSION = $QT_PATCH_VERSION" >> "$mkfile"
        echo "CONFIG_CXXFLAGS = $EXTRA_CXXFLAGS" >> "$mkfile"
        echo "CONFIG_LFLAGS = $EXTRA_LFLAGS" >> "$mkfile"
        echo "RM_F = rm -f" >> "$mkfile"
        echo "RM_RF = rm -rf" >> "$mkfile"

        case `basename "$PLATFORM"` in
        win32-g++*)
            cat "$in_mkfile.win32" >> "$mkfile"
            ;;
        *)
            cat "$in_mkfile.unix" >> "$mkfile"
            if [ "$BUILD_ON_MAC" = "yes" ]; then
                cat "$in_mkfile.macos" >> "$mkfile"
            fi
            ;;
        esac
        echo >>"$mkfile"

        if [ "$BUILD_ON_MAC" = "yes" ]; then
            echo "EXTRA_CXXFLAGS += -MMD" >> "$mkfile"
            cat "$in_mkfile" >> "$mkfile"
            echo "-include \$(notdir \$(DEPEND_SRC:%.cpp=%.d))" >> "$mkfile"
        else
            cat "$in_mkfile" >> "$mkfile"
            if "$WHICH" makedepend >/dev/null 2>&1 && grep 'depend:' "$mkfile" >/dev/null 2>&1; then
                (cd "$outpath/qmake" && "$MAKE" -f "$mkfile" depend) >/dev/null 2>&1
                sed 's,^.*/\([^/]*.o\):,\1:,g' "$mkfile" >"$mkfile.tmp"
                sed "s,$outpath,$adjoutpath,g" "$mkfile.tmp" >"$mkfile"
                rm "$mkfile.tmp"
            fi
        fi

    if [ "$OPT_VERBOSE" = yes ]; then
        # Show the output of make
        (cd "$outpath/qmake"; "$MAKE") || exit 2
    else
        # Hide the output of make
        # Use bash to print dots, if we have it, and stdout is a tty.
        if test -t 1 && $WHICH bash > /dev/null 2>/dev/null; then
            bash -c 'set -o pipefail
                cd "$0/qmake"; "$1" | while read line; do
                    builtin echo -n .
                done' "$outpath" "$MAKE" || exit 2
        else
            (cd "$outpath/qmake"; "$MAKE" -s) || exit 2
        fi
        echo "Done."
    fi

#-------------------------------------------------------------------------------
# create a qt.conf for the Qt build tree itself
#-------------------------------------------------------------------------------

printInstallPaths()
{
    cat <<EOF
Documentation=$QT_REL_INSTALL_DOCS
Headers=$QT_REL_INSTALL_HEADERS
Libraries=$QT_REL_INSTALL_LIBS
LibraryExecutables=$QT_REL_INSTALL_LIBEXECS
Binaries=$QT_REL_INSTALL_BINS
Plugins=$QT_REL_INSTALL_PLUGINS
Imports=$QT_REL_INSTALL_IMPORTS
Qml2Imports=$QT_REL_INSTALL_QML
ArchData=$QT_REL_INSTALL_ARCHDATA
Data=$QT_REL_INSTALL_DATA
Translations=$QT_REL_INSTALL_TRANSLATIONS
Examples=$QT_REL_INSTALL_EXAMPLES
Tests=$QT_REL_INSTALL_TESTS
EOF
}

QTCONFFILE="$outpath/bin/qt.conf"
cat > "$QTCONFFILE" <<EOF
[EffectivePaths]
Prefix=..
EOF
if [ -n "$CFG_HOST_QT_TOOLS_PATH" ]; then
    cat >> "$QTCONFFILE" <<EOF
[DevicePaths]
Prefix=$QT_INSTALL_PREFIX
`printInstallPaths`
[Paths]
Prefix=$QT_EXT_PREFIX
`printInstallPaths`
HostPrefix=$QT_HOST_PREFIX
HostBinaries=$QT_REL_HOST_BINS
HostLibraries=$QT_REL_HOST_LIBS
HostData=$QT_REL_HOST_DATA
TargetSpec=$XPLATFORM
HostSpec=$PLATFORM
EOF
    if [ -n "$CFG_SYSROOT" ]; then
        cat >> "$QTCONFFILE" <<EOF
Sysroot=$CFG_SYSROOT
EOF
    fi
fi
if [ x"$relpath" != x"$outpath" ]; then
    cat >> "$QTCONFFILE" <<EOF
[EffectiveSourcePaths]
Prefix=$relpath
EOF
fi

[ -z "$CFG_HOST_QT_TOOLS_PATH" ] && CFG_HOST_QT_TOOLS_PATH="$outpath/bin"
CFG_QMAKE_PATH="$CFG_HOST_QT_TOOLS_PATH/qmake"

#-------------------------------------------------------------------------------
# write out device config before we run the test.
#-------------------------------------------------------------------------------
DEVICE_VARS_OUTFILE="$outpath/mkspecs/qdevice.pri"
if cmp -s "$DEVICE_VARS_FILE" "$DEVICE_VARS_OUTFILE"; then
    rm -f "$DEVICE_VARS_FILE"
else
    mv -f $DEVICE_VARS_FILE "$DEVICE_VARS_OUTFILE"
    DEVICE_VARS_FILE="$DEVICE_VARS_OUTFILE"
fi

#-------------------------------------------------------------------------------
# run configure tests
#-------------------------------------------------------------------------------

# recreate command line for qmake
set -f
SAVED_IFS=$IFS
IFS='
'
for i in $QMAKE_CMDLINE; do
    set -- "$@" "$i"
done
set +f
IFS=$SAVED_IFS

#-------------------------------------------------------------------------------
# configure and build top-level makefile
#-------------------------------------------------------------------------------

if [ -n "$CFG_TOPLEVEL" ]; then
    cd ..
fi

"$CFG_QMAKE_PATH" -qtconf "$QTCONFFILE" "$relpathMangled" -- "$@" || exit

#-------------------------------------------------------------------------------
# final notes for the user
#-------------------------------------------------------------------------------

if [ -n "$PLATFORM_NOTES" ]; then
    echo
    echo "Platform notes:"
    echo "$PLATFORM_NOTES"
else
    echo
fi

if [ -n "$PREFIX_COMPLAINTS" ]; then
    echo
    echo "$PREFIX_COMPLAINTS"
    echo
fi

MAKE=`basename "$MAKE"`
echo
echo Qt is now configured for building. Just run \'$MAKE\'.
if [ "$outpath" = "$QT_INSTALL_PREFIX" ]; then
    echo Once everything is built, Qt is installed.
    echo You should not run \'$MAKE install\'.
else
    echo Once everything is built, you must run \'$MAKE install\'.
    echo Qt will be installed into $QT_INSTALL_PREFIX
fi
echo
echo Prior to reconfiguration, make sure you remove any leftovers from
echo the previous build.
echo